# Sinch in August 2021: incidents, uptime and changes

> Sinch in August 2021: 45 incidents on its status page (4 major or critical), 98.64% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Sinch’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/sinch/2021/08
Last updated: 2021-09-01T09:32:00Z

- Incidents posted: 45 (major/critical: 4) · Maintenance: 92
- By vendor impact label: critical 1, major 3, minor 21, none 20
- Uptime (vendor-reported): 98.64% free of major/critical incidents, 66.98% free of any incident; outage time 10 h 4 min, incident time 10.2 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [July 2021](https://rewindex.com/company/sinch/2021/07.md) · Next: [September 2021](https://rewindex.com/company/sinch/2021/09.md) · [All months](https://rewindex.com/company/sinch/reports.md) · [Sinch](https://rewindex.com/company/sinch.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/vjp3tv59lk3w.md) | critical | 2021-08-07 03:43 UTC | 2021-08-07 05:46 UTC | 2.0 h | resolved |
| [Delivery Issue Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/t01lhm1fbqk8.md) | major | 2021-08-17 13:49 UTC | 2021-08-17 16:38 UTC | 2.8 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards MTN Zambia](https://rewindex.com/company/sinch/incidents/7lqvxk1btgns.md) | major | 2021-08-17 14:53 UTC | 2021-08-17 17:55 UTC | 3.0 h | resolved |
| [Voice and Verification Flashcall degradation](https://rewindex.com/company/sinch/incidents/kc0c7vhcwcy2.md) | major | 2021-08-30 23:52 UTC | 2021-08-31 03:47 UTC | 3.9 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Delivery Issue - GrameenPhone Bangladesh](https://rewindex.com/company/sinch/incidents/dqgn0wnwks95.md) | minor | 2021-08-01 09:46 UTC | 2021-08-01 13:04 UTC | 3.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of traffic towards Slovenia](https://rewindex.com/company/sinch/incidents/kh30ctj3fl51.md) | none | 2021-08-01 11:32 UTC | 2021-08-01 17:09 UTC | 5.6 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of MT, MO and DLR](https://rewindex.com/company/sinch/incidents/70cz7zcwqlh5.md) | none | 2021-08-02 13:16 UTC | 2021-08-02 14:17 UTC | 1.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery towards South Africa \| TT\# MNOC-31904](https://rewindex.com/company/sinch/incidents/psswtbv0281h.md) | none | 2021-08-02 14:44 UTC | 2021-08-02 21:01 UTC | 6.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in delivery towards Mexico](https://rewindex.com/company/sinch/incidents/9mfps3jm5bqn.md) | minor | 2021-08-03 04:00 UTC | 2021-08-03 08:19 UTC | 4.3 h | resolved |
| [External Maintenance - Telcel Mexico](https://rewindex.com/company/sinch/incidents/3f20m1xd93f9.md) | minor | 2021-08-03 05:36 UTC | 2021-08-03 06:58 UTC | 1.4 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in receipt of DLR from U Mobile in Malaysia](https://rewindex.com/company/sinch/incidents/d009gn550qzf.md) | none | 2021-08-03 10:43 UTC | 2021-08-03 11:44 UTC | 1.0 h | resolved |
| [External Maintenance - Telcel Mexico](https://rewindex.com/company/sinch/incidents/ghgjqm1jq13j.md) | minor | 2021-08-05 06:19 UTC | 2021-08-05 08:36 UTC | 2.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in delivery towards Mexico](https://rewindex.com/company/sinch/incidents/wsw4wgkrlslr.md) | minor | 2021-08-05 06:32 UTC | 2021-08-05 08:34 UTC | 2.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in receipt of DLR from U Mobile in Malaysia](https://rewindex.com/company/sinch/incidents/7lc3j3shn2h3.md) | none | 2021-08-05 11:56 UTC | 2021-08-05 19:13 UTC | 7.3 h | resolved |
| [DI SMS 365 (SMSx) \| Operator Services \| Potential delay in delivery of MT and DLR \| TT\#MNOC-32037](https://rewindex.com/company/sinch/incidents/1szkrqb4rl7s.md) | none | 2021-08-06 03:48 UTC | 2021-08-06 07:08 UTC | 3.3 h | resolved |
| [Delivery issue - Grameenphone BD - Telenor PK - Telenor MM](https://rewindex.com/company/sinch/incidents/mpf2wpqvxjt0.md) | minor | 2021-08-06 07:44 UTC | 2021-08-06 10:06 UTC | 2.4 h | resolved |
| [Delivery issue - Grameenphone BD - Telenor PK - Telenor MM - Digi MY](https://rewindex.com/company/sinch/incidents/nfknkc4q5478.md) | minor | 2021-08-06 14:36 UTC | 2021-08-07 04:41 UTC | 14 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in delivery towards Malaysia](https://rewindex.com/company/sinch/incidents/38m82dv6j2j6.md) | none | 2021-08-06 15:24 UTC | 2021-08-06 18:58 UTC | 3.6 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in delivery towards Bangladesh](https://rewindex.com/company/sinch/incidents/rd9c1x86pp62.md) | none | 2021-08-06 16:56 UTC | 2021-08-06 18:57 UTC | 2.0 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/vjp3tv59lk3w.md) | critical | 2021-08-07 03:43 UTC | 2021-08-07 05:46 UTC | 2.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in delivery from U Mobile in Malaysia](https://rewindex.com/company/sinch/incidents/9jb3bfhsdcz9.md) | none | 2021-08-08 16:18 UTC | 2021-08-08 20:59 UTC | 4.7 h | resolved |
| [Delivery issues - AsiaCell Iraq](https://rewindex.com/company/sinch/incidents/r00s7fh3gvnr.md) | minor | 2021-08-09 06:49 UTC | 2021-08-09 12:01 UTC | 5.2 h | resolved |
| [Flashcall Degradation - Indonesia](https://rewindex.com/company/sinch/incidents/bd5sfzl5kz9z.md) | minor | 2021-08-09 09:13 UTC | 2021-08-10 10:02 UTC | 25 h | resolved |
| [Delivery Issue - KDDI Japan](https://rewindex.com/company/sinch/incidents/kstbb2swztyx.md) | minor | 2021-08-10 08:53 UTC | 2021-08-10 11:23 UTC | 2.5 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards one of our partners in Mexico](https://rewindex.com/company/sinch/incidents/xz6zx2b4msn5.md) | minor | 2021-08-13 22:16 UTC | 2021-08-13 22:51 UTC | 35 min | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential delay in receipt of DLR from our partners in Brunei Darussalam](https://rewindex.com/company/sinch/incidents/y2pxmmpjwzyt.md) | none | 2021-08-15 11:15 UTC | 2021-08-15 13:40 UTC | 2.4 h | resolved |
| [DI SMS 365 ( SMSx & iSMS ) \| Operator Services \| Potential Delay in delivery of traffic towards one of our partner in UK \| TT\# MNOC-32278](https://rewindex.com/company/sinch/incidents/l4ydzww407xt.md) | none | 2021-08-15 14:00 UTC | 2021-08-15 14:00 UTC | 0 min | resolved |
| [Verification SMS and Verification Flashcall degradation](https://rewindex.com/company/sinch/incidents/61xc93vqmj7z.md) | minor | 2021-08-17 11:25 UTC | 2021-08-17 16:57 UTC | 5.5 h | resolved |
| [Delivery Issue Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/t01lhm1fbqk8.md) | major | 2021-08-17 13:49 UTC | 2021-08-17 16:38 UTC | 2.8 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards MTN Zambia](https://rewindex.com/company/sinch/incidents/7lqvxk1btgns.md) | major | 2021-08-17 14:53 UTC | 2021-08-17 17:55 UTC | 3.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| DEGRADED SMS delivery towards Pakistan.](https://rewindex.com/company/sinch/incidents/fbjj9tzjmyz4.md) | none | 2021-08-17 15:42 UTC | 2021-08-20 03:34 UTC | 2 d | resolved |
| [DI MMS 365 – MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-32354](https://rewindex.com/company/sinch/incidents/hk98ln4rsm52.md) | none | 2021-08-18 01:26 UTC | 2021-08-18 05:32 UTC | 4.1 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Inconsistent delivery of MO, MT and DLR traffic towards Emerging Markets Telecommunication Services(9Mobile) in Nigeria](https://rewindex.com/company/sinch/incidents/gwgkq8rfnv75.md) | minor | 2021-08-19 08:41 UTC | 2021-08-19 10:51 UTC | 2.2 h | resolved |
| [DI SMS 365 ( SMSx & iSMS ) \| Operator Services \| Potential delay in delivery of traffic towards one of our partner in UK \| TT\#MNOC-32418](https://rewindex.com/company/sinch/incidents/77pfltvr4t5x.md) | none | 2021-08-20 09:38 UTC | 2021-08-20 10:00 UTC | 22 min | resolved |
| [DI SMS 365 ( SMSx & iSMS ) \| Operator Services \| Potential delay in delivery of traffic towards one of our partner in UK \| TT\#MNOC-32422](https://rewindex.com/company/sinch/incidents/rb2yz5b7jn2c.md) | none | 2021-08-20 11:20 UTC | 2021-08-20 12:01 UTC | 41 min | resolved |
| [Delivery Issue - Toll Free - US & CA](https://rewindex.com/company/sinch/incidents/5391trml4mjr.md) | minor | 2021-08-20 16:16 UTC | 2021-08-20 20:17 UTC | 4.0 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages TT\#MNOC-32435](https://rewindex.com/company/sinch/incidents/wmwg9dq95swb.md) | none | 2021-08-20 21:03 UTC | 2021-08-21 01:40 UTC | 4.6 h | resolved |
| [Delivery Issue - Long Number and Toll Free - US & CA](https://rewindex.com/company/sinch/incidents/6g70lh067dtm.md) | minor | 2021-08-22 04:15 UTC | 2021-08-22 04:56 UTC | 41 min | resolved |
| [Flashcall Degradation - Indonesia](https://rewindex.com/company/sinch/incidents/98m9xvkqrf2z.md) | minor | 2021-08-23 06:17 UTC | 2021-08-24 06:34 UTC | 24 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/s3s6pn2002g0.md) | minor | 2021-08-25 12:02 UTC | 2021-08-27 07:38 UTC | 44 h | resolved |
| [DI SMS 365\| Enterprise Messaging \| Delay in delivery of MO, MT and DLR \| TT\# MNOC-32539](https://rewindex.com/company/sinch/incidents/5mrhwn7ndg40.md) | none | 2021-08-25 14:25 UTC | 2021-08-25 16:12 UTC | 1.8 h | resolved |
| [Delivery Issue - Long Number and Toll Free - US & CA](https://rewindex.com/company/sinch/incidents/s91trn9gqwr1.md) | minor | 2021-08-27 06:54 UTC | 2021-08-27 08:08 UTC | 1.2 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MT Traffic towards Core Telecom UK in United Kingdom](https://rewindex.com/company/sinch/incidents/c0f8n85b4k9f.md) | minor | 2021-08-27 12:42 UTC | 2021-09-01 09:32 UTC | 5 d | resolved |
| [Sinch Incident - Bell and Virgin Canada](https://rewindex.com/company/sinch/incidents/q25079ttx7q9.md) | minor | 2021-08-27 16:27 UTC | 2021-08-27 18:16 UTC | 1.8 h | resolved |
| [Sinch Incident - Rogers and Fido Canada](https://rewindex.com/company/sinch/incidents/mgsz497bnxw8.md) | none | 2021-08-27 16:59 UTC | 2021-08-27 16:59 UTC | 0 min | resolved |
| [DI MMS 365 – MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-32614](https://rewindex.com/company/sinch/incidents/d3q9nsrghrck.md) | none | 2021-08-27 22:36 UTC | 2021-08-28 01:43 UTC | 3.1 h | resolved |
| [Sinch Incident - MMS, US Cellular](https://rewindex.com/company/sinch/incidents/t7kxxg6749qs.md) | none | 2021-08-28 15:00 UTC | 2021-08-28 15:00 UTC | 0 min | resolved |
| [DI MMS 365 – MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-32665](https://rewindex.com/company/sinch/incidents/7c2njl0n1byv.md) | minor | 2021-08-30 22:19 UTC | 2021-08-31 07:26 UTC | 9.1 h | resolved |
| [Voice and Verification Flashcall degradation](https://rewindex.com/company/sinch/incidents/kc0c7vhcwcy2.md) | major | 2021-08-30 23:52 UTC | 2021-08-31 03:47 UTC | 3.9 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] External Maintenance - AT&T- US](https://rewindex.com/company/sinch/incidents/zxjnn8r8vpmh.md) | maintenance | 2021-08-02 15:53 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] Network circuit changes between Data Centers On-Premise.](https://rewindex.com/company/sinch/incidents/b15n4wq5ws75.md) | maintenance | 2021-08-02 17:40 UTC | 2021-08-02 19:00 UTC | 1.3 h | resolved |
| [\[Scheduled\] External Maintenance - Videotron CA](https://rewindex.com/company/sinch/incidents/jn7zr5mkx8t3.md) | maintenance | 2021-08-03 05:00 UTC | 2021-08-03 09:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Enterprise Messaging \| 3rd party Application Maintenance \| Planned maintenance towards AT&T Mexico](https://rewindex.com/company/sinch/incidents/rpmkfc7fyh6b.md) | maintenance | 2021-08-03 05:01 UTC | 2021-08-03 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI MMS 365 - MM4 \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9122](https://rewindex.com/company/sinch/incidents/p78dmzn02qt5.md) | maintenance | 2021-08-03 06:00 UTC | 2021-08-03 08:37 UTC | 2.6 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/xnyvg2n79bq5.md) | maintenance | 2021-08-03 11:00 UTC | 2021-08-03 20:00 UTC | 9.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2423](https://rewindex.com/company/sinch/incidents/59rzzk4xzckn.md) | maintenance | 2021-08-04 04:00 UTC | 2021-08-04 08:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] \|RESCHEDULED\| DI SMS 365\| Enterprise Messaging \| 3rd party Application Maintenance \| Planned maintenance towards AT&T Mobility.](https://rewindex.com/company/sinch/incidents/rv5m607pz71z.md) | maintenance | 2021-08-04 17:36 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Application Maintenance \| Ref Number\# 2107/1177](https://rewindex.com/company/sinch/incidents/xzq8qlc4nq2g.md) | maintenance | 2021-08-04 21:30 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2424](https://rewindex.com/company/sinch/incidents/ww2kfqqwbtqm.md) | maintenance | 2021-08-05 04:30 UTC | 2021-08-05 09:00 UTC | 4.5 h | resolved |
| [\[Scheduled\] Consolidation of MMS MT and MO short code Traffic for Sprint, Virgin US, Sprint US Virgin Islands and Boost Towards T-Mobile US](https://rewindex.com/company/sinch/incidents/x8s6sy2njdn2.md) | maintenance | 2021-08-05 09:00 UTC | 2021-08-05 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/680yvc3yhfxp.md) | maintenance | 2021-08-05 17:50 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Maintenance \| Planned maintenance towards Vodafone NZ](https://rewindex.com/company/sinch/incidents/nf6lnblvt33k.md) | maintenance | 2021-08-06 13:00 UTC | 2021-08-06 13:30 UTC | 30 min | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| Emergency \| 3rd party Network Maintenance \| Ref Number\# CHG000006553866](https://rewindex.com/company/sinch/incidents/kl1bqcxcm1rj.md) | maintenance | 2021-08-07 09:00 UTC | 2021-08-07 09:28 UTC | 28 min | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| Application Maintenance \| PCR Number \# PSD-9152](https://rewindex.com/company/sinch/incidents/5nss14qklxzs.md) | maintenance | 2021-08-07 18:00 UTC | 2021-08-07 20:04 UTC | 2.1 h | resolved |
| [\[Scheduled\] Sinch Emergency Maintenance Notification - Sinch DI Services (EU)](https://rewindex.com/company/sinch/incidents/179yx6k0lvck.md) | maintenance | 2021-08-10 02:00 UTC | 2021-08-10 03:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - Security Enhancement CA sites](https://rewindex.com/company/sinch/incidents/zvfh2k16xcjh.md) | maintenance | 2021-08-10 06:00 UTC | 2021-08-10 08:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/qb9fjrp5wdk3.md) | maintenance | 2021-08-10 08:00 UTC | 2021-08-10 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] DI SMS 365 (iSMS) \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9156](https://rewindex.com/company/sinch/incidents/3dms70y49vjc.md) | maintenance | 2021-08-10 08:00 UTC | 2021-08-10 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] Sinch Emergency Maintenance Notification - REST and HTTP API Load Balancers (US)](https://rewindex.com/company/sinch/incidents/5j03g4y4jg5x.md) | maintenance | 2021-08-10 08:01 UTC | 2021-08-10 10:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/zfx9qj40v2r5.md) | maintenance | 2021-08-10 10:00 UTC | 2021-08-10 11:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Telcel Mexico](https://rewindex.com/company/sinch/incidents/3sglsmvbdpmk.md) | maintenance | 2021-08-11 05:00 UTC | 2021-08-11 05:30 UTC | 30 min | resolved |
| [\[Scheduled\] DI E-Mail 365 \| Enterprise Messaging \| 3rd party Maintenance \| Ref Number\# 161952870685](https://rewindex.com/company/sinch/incidents/p92w1q3r1ytf.md) | maintenance | 2021-08-11 06:49 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] Conversation API Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/bkg7gtytq1hd.md) | maintenance | 2021-08-11 08:00 UTC | 2021-08-11 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - TIM Brazil](https://rewindex.com/company/sinch/incidents/f5g2dwjc79yw.md) | maintenance | 2021-08-11 09:00 UTC | 2021-08-11 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Conversation API Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/xtzs6nv4yp9j.md) | maintenance | 2021-08-11 09:00 UTC | 2021-08-11 10:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - Security Enhancement AU sites](https://rewindex.com/company/sinch/incidents/7y7wjwvdr3p0.md) | maintenance | 2021-08-11 16:00 UTC | 2021-08-11 18:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - Toll-Free Number Provider](https://rewindex.com/company/sinch/incidents/b75szbyykb11.md) | maintenance | 2021-08-12 03:00 UTC | 2021-08-12 07:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2427](https://rewindex.com/company/sinch/incidents/q9dljb9gxdc8.md) | maintenance | 2021-08-12 04:00 UTC | 2021-08-12 08:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] External Maintenance - North America Long Number Provider](https://rewindex.com/company/sinch/incidents/k1cljxj3g4c3.md) | maintenance | 2021-08-12 04:01 UTC | 2021-08-12 08:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] External Maintenance - Telcel Mexico](https://rewindex.com/company/sinch/incidents/h3nq3xsgfr21.md) | maintenance | 2021-08-12 04:30 UTC | 2021-08-12 08:30 UTC | 4.0 h | resolved |
| [\[Scheduled\] Scheduled Region Server Maintenance Window](https://rewindex.com/company/sinch/incidents/2pzt87jpsh4g.md) | maintenance | 2021-08-12 21:00 UTC | 2021-08-12 23:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2428](https://rewindex.com/company/sinch/incidents/w2vmwqh7x73d.md) | maintenance | 2021-08-13 04:01 UTC | 2021-08-13 08:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] External Maintenance - US Long Number Provider](https://rewindex.com/company/sinch/incidents/smmc2j7ln8ps.md) | maintenance | 2021-08-13 04:01 UTC | 2021-08-13 05:00 UTC | 59 min | resolved |
| [\[Scheduled\] External Maintenance - North America Long Number Provider](https://rewindex.com/company/sinch/incidents/dyb7t0x5y7db.md) | maintenance | 2021-08-13 04:02 UTC | 2021-08-13 08:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Maintenance \| Planned maintenance towards Vodafone NZ](https://rewindex.com/company/sinch/incidents/h6zzxsf8393b.md) | maintenance | 2021-08-13 13:01 UTC | 2021-08-13 13:30 UTC | 29 min | resolved |
| [\[Scheduled\] External Maintenance - US Cellular](https://rewindex.com/company/sinch/incidents/n5sps3wvlglv.md) | maintenance | 2021-08-15 04:00 UTC | 2021-08-15 10:01 UTC | 6.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - TIM Brazil](https://rewindex.com/company/sinch/incidents/trx5rmq6dz64.md) | maintenance | 2021-08-17 09:00 UTC | 2021-08-17 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Maintenance \| Planned maintenance towards AT&T Mexico in Mexico \|](https://rewindex.com/company/sinch/incidents/4519nwfhswhj.md) | maintenance | 2021-08-18 05:00 UTC | 2021-08-18 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - Videotron CA](https://rewindex.com/company/sinch/incidents/m1ktt3qbcl98.md) | maintenance | 2021-08-18 05:00 UTC | 2021-08-18 09:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] DI SMS 365 (SMSx) \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9165](https://rewindex.com/company/sinch/incidents/cl3276tn6416.md) | maintenance | 2021-08-18 06:00 UTC | 2021-08-18 10:01 UTC | 4.0 h | resolved |
| [\[Scheduled\] SBC Software Upgrade](https://rewindex.com/company/sinch/incidents/w86qdsn64xcp.md) | maintenance | 2021-08-18 17:02 UTC | 2021-08-18 23:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI MMX 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000002220784](https://rewindex.com/company/sinch/incidents/m57hvkzs8nn5.md) | maintenance | 2021-08-18 22:00 UTC | 2021-08-19 01:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] DI SMS 365  \| Enterprise Messaging \| Application Maintenance \| PCR Number \#9183](https://rewindex.com/company/sinch/incidents/k1h9brmkwjjm.md) | maintenance | 2021-08-21 18:00 UTC | 2021-08-21 19:24 UTC | 1.4 h | resolved |
| [\[Scheduled\] DI E-Mail 365 \| Enterprise Messaging \| Application Maintenance \| PCR Number \#PSD-9155](https://rewindex.com/company/sinch/incidents/pwt47y1tjlv5.md) | maintenance | 2021-08-21 22:01 UTC | 2021-08-22 01:18 UTC | 3.3 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance - Multiple Airtel networks in Africa \| Ref Number\# NA](https://rewindex.com/company/sinch/incidents/wt2q9gbk0k8k.md) | maintenance | 2021-08-23 18:30 UTC | 2021-08-24 00:30 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/lspczxhm6rrz.md) | maintenance | 2021-08-24 05:04 UTC | 2021-08-24 11:00 UTC | 5.9 h | resolved |
| [\[Scheduled\] DI SMS 365 (SMSx) \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9159](https://rewindex.com/company/sinch/incidents/960zj0xnf31v.md) | maintenance | 2021-08-24 06:00 UTC | 2021-08-24 08:00 UTC | 2.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DLR towards Celcom Malaysia](https://rewindex.com/company/sinch/incidents/hw77hynd7w9l.md) | maintenance | 2021-08-24 08:21 UTC | 2021-08-24 16:46 UTC | 8.4 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - TIM Brazil](https://rewindex.com/company/sinch/incidents/qtp6hjdk13qt.md) | maintenance | 2021-08-24 09:00 UTC | 2021-08-24 11:00 UTC | 2.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards one of our partners in Mexico](https://rewindex.com/company/sinch/incidents/1h3h2hdngft9.md) | maintenance | 2021-08-24 21:17 UTC | 2021-08-25 04:40 UTC | 7.4 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T- US](https://rewindex.com/company/sinch/incidents/bkvld7r9dltb.md) | maintenance | 2021-08-25 04:05 UTC | 2021-08-25 11:02 UTC | 7.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/ygpth6tlxnyf.md) | maintenance | 2021-08-25 05:00 UTC | 2021-08-25 11:01 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI MMS 365 - MM7 \| Enterprise Messaging & Operator Services \| Application Maintenance \| PCR Number \# PSD-9185](https://rewindex.com/company/sinch/incidents/65bzy2s3r2t8.md) | maintenance | 2021-08-25 06:01 UTC | 2021-08-25 09:16 UTC | 3.3 h | resolved |
| [\[Scheduled\] Scheduled Reach Platform Maintenance](https://rewindex.com/company/sinch/incidents/72w0bqhp94nv.md) | maintenance | 2021-08-25 07:00 UTC | 2021-08-25 12:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] Conversation API Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/lfxlfv6pbzzz.md) | maintenance | 2021-08-25 08:00 UTC | 2021-08-25 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our CA sites loadbalancers](https://rewindex.com/company/sinch/incidents/x9kkdydksl96.md) | maintenance | 2021-08-25 08:00 UTC | 2021-08-25 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Conversation API Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/dw596msdbs54.md) | maintenance | 2021-08-25 09:00 UTC | 2021-08-25 10:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Toll-Free Number Provider](https://rewindex.com/company/sinch/incidents/9jjm8dsvt31n.md) | maintenance | 2021-08-26 03:00 UTC | 2021-08-26 07:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] External Maintenance - Canada Eastlink](https://rewindex.com/company/sinch/incidents/w349pym7hcb8.md) | maintenance | 2021-08-26 04:01 UTC | 2021-08-26 06:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T- US](https://rewindex.com/company/sinch/incidents/jv34m6v9cjc6.md) | maintenance | 2021-08-26 04:01 UTC | 2021-08-26 11:01 UTC | 7.0 h | resolved |
| [\[Scheduled\] Customer Portal routine maintenance](https://rewindex.com/company/sinch/incidents/wfwvn7mzd6tg.md) | maintenance | 2021-08-26 05:00 UTC | 2021-08-26 07:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/fjc8cwkgrcdf.md) | maintenance | 2021-08-26 05:01 UTC | 2021-08-26 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9189](https://rewindex.com/company/sinch/incidents/1tfjsz2dx7zx.md) | maintenance | 2021-08-26 06:00 UTC | 2021-08-26 07:21 UTC | 1.4 h | resolved |
| [\[Scheduled\] External Maintenance - North America Long Number Provider](https://rewindex.com/company/sinch/incidents/s54jzgw8l23x.md) | maintenance | 2021-08-26 06:01 UTC | 2021-08-26 11:01 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Network Maintenance - US3 Site](https://rewindex.com/company/sinch/incidents/84x15f2bc602.md) | maintenance | 2021-08-26 08:00 UTC | 2021-08-26 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our AU and BR sites loadbalancers](https://rewindex.com/company/sinch/incidents/6crb9rnw4zzy.md) | maintenance | 2021-08-26 15:00 UTC | 2021-08-26 16:00 UTC | 1.0 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MT and DLR \| TT\# MNOC-32583](https://rewindex.com/company/sinch/incidents/jm4wq4lyxkct.md) | maintenance | 2021-08-26 16:11 UTC | 2021-08-26 18:48 UTC | 2.6 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| CMP Portal Inaccessible \| TT\# MNOC-32589](https://rewindex.com/company/sinch/incidents/pct2zbhsdn4j.md) | maintenance | 2021-08-27 01:02 UTC | 2021-08-27 09:12 UTC | 8.2 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Maintenance \| Planned maintenance towards AT&T Mexico in Mexico \|](https://rewindex.com/company/sinch/incidents/f9kp7bkpmj94.md) | maintenance | 2021-08-27 05:00 UTC | 2021-08-27 11:01 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/4bmn22f1hvwy.md) | maintenance | 2021-08-27 05:00 UTC | 2021-08-27 11:01 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T- MX](https://rewindex.com/company/sinch/incidents/2q9r49bv0gdt.md) | maintenance | 2021-08-27 05:00 UTC | 2021-08-27 11:01 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/xfhd28qvrbcq.md) | maintenance | 2021-08-28 06:02 UTC | 2021-08-28 07:00 UTC | 58 min | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 21923323-1](https://rewindex.com/company/sinch/incidents/kjqqt0cc3g4l.md) | maintenance | 2021-08-28 16:00 UTC | 2021-08-28 21:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| Application Maintenance \| PCR Number \# PSD-9187](https://rewindex.com/company/sinch/incidents/0q3gflq4mtjp.md) | maintenance | 2021-08-28 18:01 UTC | 2021-08-28 19:14 UTC | 1.2 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| Application and System Maintenance \| PCR Number \# PSD-9178](https://rewindex.com/company/sinch/incidents/x9nxnhjxjg0w.md) | maintenance | 2021-08-28 18:01 UTC | 2021-08-28 19:32 UTC | 1.5 h | resolved |
| [\[Scheduled\] External Maintenance - Sprint US](https://rewindex.com/company/sinch/incidents/flfztjw94mld.md) | maintenance | 2021-08-29 05:00 UTC | 2021-08-29 10:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] External Maintenance - Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/shsp9zlfscbk.md) | maintenance | 2021-08-30 08:00 UTC | 2021-08-30 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Scheduled Network Maintenance - Sinch Legacy Atlas SMPP Gateways (US)](https://rewindex.com/company/sinch/incidents/ks1mcn1mv7s0.md) | maintenance | 2021-08-30 09:02 UTC | 2021-08-30 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Scheduled Network Maintenance - Sinch Legacy Atlas SMPP Gateways (EU)](https://rewindex.com/company/sinch/incidents/1skh93mhmprw.md) | maintenance | 2021-08-30 22:00 UTC | 2021-08-31 00:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI LTE 365 & GRX 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000002438231](https://rewindex.com/company/sinch/incidents/yqb153983rkv.md) | maintenance | 2021-08-30 23:30 UTC | 2021-08-31 05:30 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI LTE 365 & GRX 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000002437338](https://rewindex.com/company/sinch/incidents/1nrx656vtdbr.md) | maintenance | 2021-08-30 23:30 UTC | 2021-08-31 05:30 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI LTE 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000002437341](https://rewindex.com/company/sinch/incidents/bw6xrm3fmkht.md) | maintenance | 2021-08-30 23:30 UTC | 2021-08-31 05:30 UTC | 6.0 h | resolved |
| [\[Scheduled\] Scheduled Network Maintenance - Sinch Legacy Atlas LON3 Site](https://rewindex.com/company/sinch/incidents/75wltv2dlkp4.md) | maintenance | 2021-08-31 04:02 UTC | 2021-08-31 06:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2439](https://rewindex.com/company/sinch/incidents/y3tfbbdzwp8h.md) | maintenance | 2021-08-31 05:02 UTC | 2021-08-31 10:01 UTC | 5.0 h | resolved |
| [\[Scheduled\] External Maintenance - North America Long Number Provider](https://rewindex.com/company/sinch/incidents/7h4d0tsffy13.md) | maintenance | 2021-08-31 05:02 UTC | 2021-08-31 09:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] External Maintenance - North America Long Number Provider](https://rewindex.com/company/sinch/incidents/644tr92n0cwj.md) | maintenance | 2021-08-31 05:03 UTC | 2021-08-31 09:01 UTC | 4.0 h | resolved |
| [\[Scheduled\] DI MMS 365 - MM4 \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9186](https://rewindex.com/company/sinch/incidents/3fl95yxjhr4q.md) | maintenance | 2021-08-31 06:01 UTC | 2021-08-31 09:51 UTC | 3.8 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/ptmbpdw369h4.md) | maintenance | 2021-08-31 08:00 UTC | 2021-08-31 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/fyxpvzrw6ytk.md) | maintenance | 2021-08-31 08:00 UTC | 2021-08-31 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/3tsdqlf39hl8.md) | maintenance | 2021-08-31 10:03 UTC | 2021-08-31 11:00 UTC | 57 min | resolved |
| [\[Scheduled\] Production servers maintenance - Calling Platform](https://rewindex.com/company/sinch/incidents/3wksq46gyrhw.md) | maintenance | 2021-08-31 18:00 UTC | 2021-08-31 22:00 UTC | 4.0 h | resolved |

## Cite this

Sinch posted 45 status incidents in August 2021 (4 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sinch/2021/08
- Citation: Sinch, “Sinch in August 2021” (2021-08-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/2021/08 (CC BY 4.0).
- Markdown link: `[Sinch: Sinch in August 2021 (2021-08-01)](https://rewindex.com/company/sinch/2021/08)`


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Canonical: https://rewindex.com/company/sinch/2021/08 · Markdown: https://rewindex.com/company/sinch/2021/08.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:56:36.561Z