# Sinch in June 2021: incidents, uptime and changes

> Sinch in June 2021: 31 incidents on its status page (3 major or critical), 96.10% 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/2021/06
Last updated: 2021-07-01T10:29:00Z

- Incidents posted: 31 (major/critical: 3) · Maintenance: 42
- By vendor impact label: critical 1, major 2, minor 25, none 3
- Uptime (vendor-reported): 96.10% free of major/critical incidents, 76.73% free of any incident; outage time 28 h 2 min, incident time 7.0 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [May 2021](https://rewindex.com/company/sinch/2021/05.md) · Next: [July 2021](https://rewindex.com/company/sinch/2021/07.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 |
| --- | --- | --- | --- | --- | --- |
| [Performance Degradation -  Coriolis - France](https://rewindex.com/company/sinch/incidents/q1xsh4z1vmy5.md) | critical | 2021-06-03 08:18 UTC | 2021-06-03 19:43 UTC | 11 h | resolved |
| [Delivery Issues Peru - Claro](https://rewindex.com/company/sinch/incidents/zk4993vw58z8.md) | major | 2021-06-23 08:18 UTC | 2021-06-23 14:05 UTC | 5.8 h | resolved |
| [DI MMX 365 \| Operator Services \| Potential delay in delivery of MO, MT and DLR \| TT\# MNOC-30918](https://rewindex.com/company/sinch/incidents/ns0zrqhzv4nw.md) | major | 2021-06-27 18:24 UTC | 2021-06-28 05:14 UTC | 11 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Performance Degradation -  Coriolis - France](https://rewindex.com/company/sinch/incidents/q1xsh4z1vmy5.md) | critical | 2021-06-03 08:18 UTC | 2021-06-03 19:43 UTC | 11 h | resolved |
| [Delivery Issue Iraq - Asiacell](https://rewindex.com/company/sinch/incidents/0yjb8pptzp90.md) | minor | 2021-06-04 18:50 UTC | 2021-06-04 20:55 UTC | 2.1 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/rv25gtcl27sw.md) | minor | 2021-06-08 10:54 UTC | 2021-06-08 11:38 UTC | 44 min | resolved |
| [Operator Notification - Verizon US - MMS](https://rewindex.com/company/sinch/incidents/pfr3d3kcscp8.md) | minor | 2021-06-09 16:13 UTC | 2021-06-09 17:24 UTC | 1.2 h | resolved |
| [Delivery Issue Indonesia - 3 Hutchison](https://rewindex.com/company/sinch/incidents/mbnz3phd7m23.md) | minor | 2021-06-13 07:54 UTC | 2021-06-13 12:13 UTC | 4.3 h | resolved |
| [Delivery Issue Brazil - Claro](https://rewindex.com/company/sinch/incidents/hyxygpr74flm.md) | minor | 2021-06-13 16:17 UTC | 2021-06-13 17:46 UTC | 1.5 h | resolved |
| [Flashcall Degradation - Indonesia](https://rewindex.com/company/sinch/incidents/xsfpv03xmhwm.md) | minor | 2021-06-14 05:41 UTC | 2021-06-14 07:32 UTC | 1.9 h | resolved |
| [Delivery issues - AsiaCell Iraq](https://rewindex.com/company/sinch/incidents/t816b65cjy9m.md) | minor | 2021-06-14 06:56 UTC | 2021-06-15 03:04 UTC | 20 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/6wwlfkp6yhfc.md) | minor | 2021-06-15 07:10 UTC | 2021-06-15 08:58 UTC | 1.8 h | resolved |
| [Delivery Issue Brazil - Claro](https://rewindex.com/company/sinch/incidents/ycdznjh800b0.md) | minor | 2021-06-16 21:38 UTC | 2021-06-17 22:42 UTC | 25 h | resolved |
| [Delivery Issue Dominican Republic - Altice](https://rewindex.com/company/sinch/incidents/4b78jt5fn3hp.md) | minor | 2021-06-18 20:05 UTC | 2021-06-19 12:02 UTC | 16 h | resolved |
| [Delivery Issue Brazil - Claro](https://rewindex.com/company/sinch/incidents/jd0m05v6cgz7.md) | minor | 2021-06-21 16:43 UTC | 2021-06-22 00:39 UTC | 7.9 h | resolved |
| [\[INCIDENT\] \| Enterprise Messaging \| DI SMS 365 \| Potential Delay in delivery of traffic towards one of our partners in Malaysia](https://rewindex.com/company/sinch/incidents/ln0n11c1ddzf.md) | minor | 2021-06-22 01:54 UTC | 2021-06-22 05:02 UTC | 3.1 h | resolved |
| [Delivery Issue Malaysia - Digi](https://rewindex.com/company/sinch/incidents/ctlkt4x3ylpq.md) | minor | 2021-06-22 02:04 UTC | 2021-06-22 05:01 UTC | 3.0 h | resolved |
| [Delivery Issue Malaysia - Digi](https://rewindex.com/company/sinch/incidents/y108xsmcmzvd.md) | minor | 2021-06-22 16:49 UTC | 2021-06-22 19:02 UTC | 2.2 h | resolved |
| [DI MMS 365 (MM7) \| Enterprise Services \| Potential delay in delivery for multiple media messaging \| MNOC-30791](https://rewindex.com/company/sinch/incidents/l1c5w9n2z8vc.md) | minor | 2021-06-22 17:32 UTC | 2021-06-22 18:52 UTC | 1.3 h | resolved |
| [DI SMS 365 (SMSx) \| Operator Services \| Delay in delivery reports and MT Traffic \| TT\#MNOC-30797](https://rewindex.com/company/sinch/incidents/zm8vm4d69jj0.md) | minor | 2021-06-22 18:25 UTC | 2021-06-22 19:45 UTC | 1.3 h | resolved |
| [DI SMS 365 (SMSx) \| Operator Services \| Delay in delivery reports and MT Traffic \| TT\#MNOC-30804](https://rewindex.com/company/sinch/incidents/8rpv2qkd5hmt.md) | minor | 2021-06-22 21:11 UTC | 2021-06-22 21:40 UTC | 29 min | resolved |
| [\[INCIDENT - RESOLVED\] \| Enterprise Messaging \| DI SMS 365 \| Potential Delay in delivery of traffic towards one of our partners in Mexico](https://rewindex.com/company/sinch/incidents/kwl71wtlbx4s.md) | none | 2021-06-23 04:40 UTC | 2021-06-23 08:49 UTC | 4.2 h | resolved |
| [Delivery Issues Peru - Claro](https://rewindex.com/company/sinch/incidents/zk4993vw58z8.md) | major | 2021-06-23 08:18 UTC | 2021-06-23 14:05 UTC | 5.8 h | resolved |
| [V-SMS performance degradation for United States](https://rewindex.com/company/sinch/incidents/g6hz67rmk9gw.md) | minor | 2021-06-23 16:58 UTC | 2021-06-23 20:14 UTC | 3.3 h | resolved |
| [DI MMS 365 (MM7)\| Enterprise Messaging \| Delay in delivery of MO, MT and DLR \| TT\# MNOC-30856](https://rewindex.com/company/sinch/incidents/yj0ktyzv39z2.md) | minor | 2021-06-24 18:33 UTC | 2021-06-24 20:45 UTC | 2.2 h | resolved |
| [Sinch Incident - Network Disturbance](https://rewindex.com/company/sinch/incidents/8slz8gx6brv6.md) | minor | 2021-06-25 22:06 UTC | 2021-06-25 23:05 UTC | 59 min | resolved |
| [Services \| Enterprise Messaging \| Delay in delivery of MT and DLR traffic towards one of the partner in Oman](https://rewindex.com/company/sinch/incidents/n3ptk1hjj5pn.md) | minor | 2021-06-27 14:39 UTC | 2021-06-28 06:32 UTC | 16 h | resolved |
| [DI SMS 365\| Enterprise Messaging \|  Delay in delivery of MT and DLR traffic towards multiple destinations](https://rewindex.com/company/sinch/incidents/pm9n1x5zwg2g.md) | minor | 2021-06-27 15:31 UTC | 2021-06-28 07:56 UTC | 16 h | resolved |
| [DI MMX 365 \| Operator Services \| Potential delay in delivery of MO, MT and DLR \| TT\# MNOC-30918](https://rewindex.com/company/sinch/incidents/ns0zrqhzv4nw.md) | major | 2021-06-27 18:24 UTC | 2021-06-28 05:14 UTC | 11 h | resolved |
| [Delivery Issue Vietnam - Vinaphone](https://rewindex.com/company/sinch/incidents/4zx2d2nmy1cn.md) | minor | 2021-06-29 09:54 UTC | 2021-07-01 09:28 UTC | 48 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of traffic towards India](https://rewindex.com/company/sinch/incidents/nwby8ykwctzr.md) | none | 2021-06-30 12:50 UTC | 2021-07-01 00:39 UTC | 12 h | resolved |
| [\[INCIDENT\] \| Operator Services \| DI SMS 365 \| Potential Delay in delivery of traffic towards one of our partner in UK \| TT\# MNOC-31011](https://rewindex.com/company/sinch/incidents/cd53ynjsc9dj.md) | none | 2021-06-30 15:13 UTC | 2021-06-30 16:03 UTC | 50 min | resolved |
| [V-SMS performance degradation for United States](https://rewindex.com/company/sinch/incidents/x2j8q2wx8pzd.md) | minor | 2021-06-30 22:43 UTC | 2021-07-01 10:28 UTC | 12 h | resolved |
| [V-SMS performance degradation for Canada](https://rewindex.com/company/sinch/incidents/hdkxwwhq1c07.md) | minor | 2021-06-30 22:45 UTC | 2021-07-01 10:29 UTC | 12 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Customer Portal - Internal Maintenance](https://rewindex.com/company/sinch/incidents/k0pptqvq212g.md) | maintenance | 2021-06-02 05:00 UTC | 2021-06-02 06:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/vdmy8qm7kqb6.md) | maintenance | 2021-06-03 05:00 UTC | 2021-06-03 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] Customer Portal - Internal Maintenance](https://rewindex.com/company/sinch/incidents/hwwn2mntkzfs.md) | maintenance | 2021-06-03 05:00 UTC | 2021-06-03 06:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - US2 Site](https://rewindex.com/company/sinch/incidents/qk822c34sb26.md) | maintenance | 2021-06-03 08:00 UTC | 2021-06-03 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/vk0gk0qwrbqp.md) | maintenance | 2021-06-07 05:00 UTC | 2021-06-07 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/4qvcm3jh9slh.md) | maintenance | 2021-06-08 08:01 UTC | 2021-06-08 09:00 UTC | 59 min | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - US5 Site](https://rewindex.com/company/sinch/incidents/x0j5mmhfn0jb.md) | maintenance | 2021-06-08 08:01 UTC | 2021-06-08 10:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/glhx4fdwjmpc.md) | maintenance | 2021-06-08 10:00 UTC | 2021-06-08 11:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/cyz0dxdpz8ny.md) | maintenance | 2021-06-09 05:00 UTC | 2021-06-09 10:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] Customer Portal - Internal Maintenance](https://rewindex.com/company/sinch/incidents/hwrnhz3cq9s0.md) | maintenance | 2021-06-09 05:00 UTC | 2021-06-09 06:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Planned Maintenance : Final Reminder - Atlas HTTP SMS Migration](https://rewindex.com/company/sinch/incidents/kx1r0h62w9yf.md) | maintenance | 2021-06-10 09:00 UTC | 2021-06-10 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - US Long Number Provider](https://rewindex.com/company/sinch/incidents/pwzkflrhgcln.md) | maintenance | 2021-06-11 05:00 UTC | 2021-06-11 13:01 UTC | 8.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/k9pqmst5187n.md) | maintenance | 2021-06-14 05:00 UTC | 2021-06-14 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - US Long Number Provider MMS](https://rewindex.com/company/sinch/incidents/dpvght0q16gf.md) | maintenance | 2021-06-14 10:30 UTC | 2021-06-14 12:00 UTC | 1.5 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/jdr9jk5zfbb1.md) | maintenance | 2021-06-15 05:00 UTC | 2021-06-15 10:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] External Maintenance - Sprint US](https://rewindex.com/company/sinch/incidents/kfrgx6w3jpd4.md) | maintenance | 2021-06-15 05:00 UTC | 2021-06-15 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - US Cellular](https://rewindex.com/company/sinch/incidents/zlfqqlj40xgq.md) | maintenance | 2021-06-15 06:00 UTC | 2021-06-15 09:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/7dz7f9zb8ql6.md) | maintenance | 2021-06-17 05:00 UTC | 2021-06-17 10:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] External Maintenance - Sprint US](https://rewindex.com/company/sinch/incidents/5stm55t3dp3m.md) | maintenance | 2021-06-17 05:00 UTC | 2021-06-17 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] External Maintenance - US Long Number Provider](https://rewindex.com/company/sinch/incidents/bt6lcr4m8262.md) | maintenance | 2021-06-18 09:00 UTC | 2021-06-18 10:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/2p308s695zfs.md) | maintenance | 2021-06-22 05:00 UTC | 2021-06-22 10:02 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sinch Planned Maintenance: MMS](https://rewindex.com/company/sinch/incidents/2v5s9368jpqy.md) | maintenance | 2021-06-22 08:01 UTC | 2021-06-22 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/bgn5tc50s4p2.md) | maintenance | 2021-06-23 04:02 UTC | 2021-06-23 11:01 UTC | 7.0 h | resolved |
| [\[Scheduled\] Scheduled Reach Platform Maintenance](https://rewindex.com/company/sinch/incidents/jrb8wnz1hnyt.md) | maintenance | 2021-06-23 07:00 UTC | 2021-06-23 12:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our CA sites loadbalancers](https://rewindex.com/company/sinch/incidents/xp37v1ybppm8.md) | maintenance | 2021-06-23 08:00 UTC | 2021-06-23 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/nqj3lb1fqc84.md) | maintenance | 2021-06-24 03:42 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/mtjbbtjksx7l.md) | maintenance | 2021-06-24 04:01 UTC | 2021-06-24 11:00 UTC | 7.0 h | resolved |
| [\[Scheduled\] External Maintenance - Verizon - US](https://rewindex.com/company/sinch/incidents/v49fzyrjrnpb.md) | maintenance | 2021-06-24 04:50 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] Customer Portal routine maintenance](https://rewindex.com/company/sinch/incidents/l2v681gynxt7.md) | maintenance | 2021-06-24 05:00 UTC | 2021-06-24 07:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - US5 Site](https://rewindex.com/company/sinch/incidents/d257k11gh6sv.md) | maintenance | 2021-06-24 08:00 UTC | 2021-06-24 10:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our AU sites loadbalancers](https://rewindex.com/company/sinch/incidents/5y1v3sx7h6y8.md) | maintenance | 2021-06-24 15:00 UTC | 2021-06-24 16:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our BR sites loadbalancers](https://rewindex.com/company/sinch/incidents/dr607qd9yf6g.md) | maintenance | 2021-06-24 15:00 UTC | 2021-06-24 16:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Enterprise Messaging \| DI SMS 365 \| 23 June 2021 05:00 Hrs -12:00 Hrs GMT \| AT&T USA Maintenance \| CHG000006709274](https://rewindex.com/company/sinch/incidents/tr30gnclrfps.md) | maintenance | 2021-06-24 17:41 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] \[MAINTENANCE\] \| SCHEDULED \| Enterprise Messaging \| DI MMS 365 - MM7 \|  25 Jun 2021 06:00 Hrs. - 10:00 Hrs. GMT  \| DI Application Maintenance \| PSD-9062](https://rewindex.com/company/sinch/incidents/z96z5bj4v649.md) | maintenance | 2021-06-25 06:00 UTC | 2021-06-25 09:39 UTC | 3.6 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - US5 Site](https://rewindex.com/company/sinch/incidents/gx33gzmcdxnk.md) | maintenance | 2021-06-25 09:53 UTC | 2021-06-25 09:54 UTC | 1 min | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/z4g31ng88g92.md) | maintenance | 2021-06-28 07:01 UTC | 2021-06-28 10:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/2mr28kvwgnn8.md) | maintenance | 2021-06-29 08:00 UTC | 2021-06-29 09:45 UTC | 1.8 h | resolved |
| [\[Scheduled\] Consolidation of SMS MT Short Code Traffic for Sprint, Virgin US, Sprint US Virgin Islands and Boost Towards T-Mobile US](https://rewindex.com/company/sinch/incidents/7yh1sk0c56n2.md) | maintenance | 2021-06-29 08:00 UTC | 2021-06-29 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/xt3x3xb8hl0t.md) | maintenance | 2021-06-29 10:00 UTC | 2021-06-29 11:45 UTC | 1.8 h | resolved |
| [\[Scheduled\] \[Maintenance\] \| Scheduled \| Enterprise Messaging \| DI SMS 365 \| 29 June 2021 10:00 Hrs. - 13:00 Hrs. GMT \| Maintenance performed by partner in New Zealand.](https://rewindex.com/company/sinch/incidents/9ln7jlxvcyy8.md) | maintenance | 2021-06-29 10:00 UTC | 2021-06-29 13:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/nqjqs15ggvgy.md) | maintenance | 2021-06-30 07:03 UTC | 2021-06-30 10:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] Consolidation of SMS MT Short Code Traffic for Sprint, Virgin US, Sprint US Virgin Islands and Boost Towards T-Mobile US](https://rewindex.com/company/sinch/incidents/drk9b21l7stj.md) | maintenance | 2021-06-30 08:01 UTC | 2021-06-30 11:00 UTC | 3.0 h | resolved |

## Cite this

Sinch posted 31 status incidents in June 2021 (3 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sinch/2021/06
- Citation: Sinch, “Sinch in June 2021” (2021-06-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/2021/06 (CC BY 4.0).
- Markdown link: `[Sinch: Sinch in June 2021 (2021-06-01)](https://rewindex.com/company/sinch/2021/06)`


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Canonical: https://rewindex.com/company/sinch/2021/06 · Markdown: https://rewindex.com/company/sinch/2021/06.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T13:54:07.613Z