# Sinch in December 2021: incidents, uptime and changes

> Sinch in December 2021: 72 incidents on its status page (0 major or critical), 100% 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/2021/12
Last updated: 2022-01-01T04:38:00Z

- Incidents posted: 72 (major/critical: 0) · Maintenance: 56
- By vendor impact label: minor 45, none 27
- Uptime (vendor-reported): 100% free of major/critical incidents, 24.15% free of any incident; outage time 0 min, incident time 23.5 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [November 2021](https://rewindex.com/company/sinch/2021/11.md) · Next: [January 2022](https://rewindex.com/company/sinch/2022/01.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._

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\#MNOC-35339](https://rewindex.com/company/sinch/incidents/s44g945lqq05.md) | none | 2021-12-01 20:17 UTC | 2021-12-02 07:44 UTC | 11 h | resolved |
| [Delivery Issue- Bell Canada](https://rewindex.com/company/sinch/incidents/c93wpyhr3s0v.md) | minor | 2021-12-01 20:52 UTC | 2021-12-09 06:54 UTC | 7 d | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/l0p1q9gvfn59.md) | none | 2021-12-01 23:00 UTC | 2021-12-01 23:00 UTC | 0 min | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards one of our partners in Nigeria.](https://rewindex.com/company/sinch/incidents/mq48p0fgvt8h.md) | none | 2021-12-02 12:40 UTC | 2021-12-02 17:48 UTC | 5.1 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of MT, MO and DLR traffic towards Vodafone in Egypt](https://rewindex.com/company/sinch/incidents/5yfqcxbq241g.md) | none | 2021-12-02 18:19 UTC | 2021-12-03 00:25 UTC | 6.1 h | resolved |
| [Delivery Issue Iraq - Asiacell](https://rewindex.com/company/sinch/incidents/sf6lh9rml4br.md) | minor | 2021-12-03 05:41 UTC | 2021-12-03 11:25 UTC | 5.7 h | resolved |
| [Performance degradation - Customer Portal](https://rewindex.com/company/sinch/incidents/zd15j48n60yf.md) | minor | 2021-12-03 14:53 UTC | 2021-12-03 19:17 UTC | 4.4 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR from AT&T Mobility in United States \| MNOC-35429](https://rewindex.com/company/sinch/incidents/smxgl5m1tkdc.md) | none | 2021-12-03 23:24 UTC | 2021-12-04 05:07 UTC | 5.7 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35453](https://rewindex.com/company/sinch/incidents/d6vv66m06jbf.md) | none | 2021-12-04 17:05 UTC | 2021-12-05 06:07 UTC | 13 h | resolved |
| [Sinch Incident - DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MT, MO & DR from American Samoa Telecommunications Authority(ASTCA) in American Samoa - 4th December 2021](https://rewindex.com/company/sinch/incidents/06ytfbv8sy18.md) | none | 2021-12-05 00:02 UTC | 2021-12-05 02:33 UTC | 2.5 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35480](https://rewindex.com/company/sinch/incidents/k9l9y7jlbc4k.md) | none | 2021-12-05 16:46 UTC | 2021-12-05 21:47 UTC | 5.0 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35509](https://rewindex.com/company/sinch/incidents/kgsstnr3vyvb.md) | none | 2021-12-06 17:53 UTC | 2021-12-06 20:59 UTC | 3.1 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR from AT&T Mobility in United States \| MNOC-35511](https://rewindex.com/company/sinch/incidents/z9zsc5bh5n1k.md) | none | 2021-12-06 19:01 UTC | 2021-12-07 08:04 UTC | 13 h | resolved |
| [PSTN Performance Degradation - South America](https://rewindex.com/company/sinch/incidents/kwrdhm1mmzxc.md) | minor | 2021-12-06 20:16 UTC | 2021-12-06 20:33 UTC | 17 min | resolved |
| [Delivery Issue - Singapore M1](https://rewindex.com/company/sinch/incidents/4trznmngjd09.md) | minor | 2021-12-06 23:57 UTC | 2021-12-07 01:32 UTC | 1.6 h | resolved |
| [Delivery Issue - Brazil TIM](https://rewindex.com/company/sinch/incidents/0kjmb0hj1nlt.md) | minor | 2021-12-07 03:55 UTC | 2021-12-07 09:40 UTC | 5.8 h | resolved |
| [Delivery issues - Sky Mobile - United Kingdom](https://rewindex.com/company/sinch/incidents/6547vf5f9ztb.md) | minor | 2021-12-07 13:17 UTC | 2021-12-13 21:11 UTC | 6 d | resolved |
| [Verification Degradation](https://rewindex.com/company/sinch/incidents/7dvqyrfpvvs7.md) | minor | 2021-12-07 15:55 UTC | 2021-12-07 17:08 UTC | 1.2 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DR towards AT&T Mobility in United States](https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz.md) | minor | 2021-12-07 17:38 UTC | 2021-12-08 11:12 UTC | 18 h | resolved |
| [Calling Degradation - US East](https://rewindex.com/company/sinch/incidents/n6wlspzc9r5c.md) | minor | 2021-12-07 17:46 UTC | 2021-12-08 08:58 UTC | 15 h | resolved |
| [Delivery degradation - France NRJ Mobile](https://rewindex.com/company/sinch/incidents/c3q155bdzwm3.md) | minor | 2021-12-08 00:24 UTC | 2021-12-08 01:55 UTC | 1.5 h | resolved |
| [Verification Degradation](https://rewindex.com/company/sinch/incidents/j6br8s3z1ch8.md) | minor | 2021-12-08 07:45 UTC | 2021-12-08 09:30 UTC | 1.8 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR towards AT&T Mobility in United States](https://rewindex.com/company/sinch/incidents/vgvhh0kkvn2m.md) | minor | 2021-12-08 15:00 UTC | 2022-02-03 16:54 UTC | 57 d | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards multiple MTN networks](https://rewindex.com/company/sinch/incidents/24cj2n7jvcqm.md) | minor | 2021-12-08 22:13 UTC | 2021-12-08 23:22 UTC | 1.1 h | resolved |
| [Performance degradation - Norway - Telia](https://rewindex.com/company/sinch/incidents/jm7qth4tld31.md) | minor | 2021-12-08 22:50 UTC | 2021-12-09 04:28 UTC | 5.6 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR towards United States](https://rewindex.com/company/sinch/incidents/9g5w9rykbvw3.md) | none | 2021-12-09 08:20 UTC | 2021-12-09 09:16 UTC | 56 min | resolved |
| [Sinch Incident - Network Disturbance](https://rewindex.com/company/sinch/incidents/grby0ky3mvq4.md) | minor | 2021-12-09 16:00 UTC | 2021-12-09 16:00 UTC | 0 min | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MT,MO and DLR traffic towards AT&T Mexico](https://rewindex.com/company/sinch/incidents/6glplywc8hdf.md) | none | 2021-12-09 22:23 UTC | 2021-12-10 00:51 UTC | 2.5 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of MT, MO and DLR traffic towards Vodafone in Egypt](https://rewindex.com/company/sinch/incidents/ndzhrwdgn5mt.md) | none | 2021-12-10 18:15 UTC | 2021-12-10 20:33 UTC | 2.3 h | resolved |
| [Sinch Incident Notification - Degradation to REST API  for US](https://rewindex.com/company/sinch/incidents/hqzxnqvn98x7.md) | none | 2021-12-11 02:05 UTC | 2021-12-11 02:05 UTC | 0 min | resolved |
| [Sinch Incident Notification - Degradation to REST API  for US](https://rewindex.com/company/sinch/incidents/jbpmpyzmt381.md) | none | 2021-12-11 02:14 UTC | 2021-12-11 04:16 UTC | 2.0 h | resolved |
| [Delivery Issue - GrameenPhone Bangladesh](https://rewindex.com/company/sinch/incidents/nj5r1s5qqh35.md) | minor | 2021-12-11 17:19 UTC | 2021-12-11 20:33 UTC | 3.2 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/ys95lw8mkw6k.md) | minor | 2021-12-12 15:53 UTC | 2021-12-12 21:19 UTC | 5.4 h | resolved |
| [Delivery Issue Iraq - Asiacell](https://rewindex.com/company/sinch/incidents/vtr4pqftvg4b.md) | minor | 2021-12-13 16:28 UTC | 2021-12-13 21:03 UTC | 4.6 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35754](https://rewindex.com/company/sinch/incidents/8fc1x5bz025z.md) | none | 2021-12-15 00:30 UTC | 2021-12-15 07:08 UTC | 6.6 h | resolved |
| [General Network Disturbance - US](https://rewindex.com/company/sinch/incidents/8sg7ly9vgp83.md) | minor | 2021-12-15 15:39 UTC | 2021-12-16 04:52 UTC | 13 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35804](https://rewindex.com/company/sinch/incidents/ztkys3bw4y63.md) | none | 2021-12-15 20:31 UTC | 2021-12-16 00:42 UTC | 4.2 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DLR traffic \| TT\# MNOC-35808](https://rewindex.com/company/sinch/incidents/jxrym1d7hscf.md) | none | 2021-12-15 20:57 UTC | 2021-12-16 00:42 UTC | 3.8 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/h2zvn2k0l84n.md) | minor | 2021-12-16 09:20 UTC | 2021-12-16 13:54 UTC | 4.6 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35847](https://rewindex.com/company/sinch/incidents/n5qvy3t8m1js.md) | none | 2021-12-16 17:40 UTC | 2021-12-16 22:58 UTC | 5.3 h | resolved |
| [Delivery issues - Bouygues Telecom](https://rewindex.com/company/sinch/incidents/mxplczb70gxs.md) | minor | 2021-12-17 11:32 UTC | 2021-12-17 12:28 UTC | 56 min | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35887](https://rewindex.com/company/sinch/incidents/nnvj4vdc1k6r.md) | none | 2021-12-17 16:43 UTC | 2021-12-18 05:57 UTC | 13 h | resolved |
| [Delivery issues - Telcel Mexico](https://rewindex.com/company/sinch/incidents/cb7myy9jbkld.md) | minor | 2021-12-17 19:59 UTC | 2021-12-18 04:20 UTC | 8.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR Traffic towards Vodafone New Zealand](https://rewindex.com/company/sinch/incidents/wd3kgtvfm9y0.md) | minor | 2021-12-18 05:46 UTC | 2021-12-18 07:14 UTC | 1.5 h | resolved |
| [Delivery Issue - GrameenPhone - Bangladesh](https://rewindex.com/company/sinch/incidents/3480jvddz52b.md) | minor | 2021-12-18 13:04 UTC | 2021-12-18 19:00 UTC | 5.9 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35911](https://rewindex.com/company/sinch/incidents/pmgkzklqnwp2.md) | none | 2021-12-18 17:31 UTC | 2021-12-19 00:44 UTC | 7.2 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35935](https://rewindex.com/company/sinch/incidents/sz8l8lsc881h.md) | none | 2021-12-20 01:07 UTC | 2021-12-20 04:37 UTC | 3.5 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of MO, MT and DLR Traffic towards AT&T Mobility in United States](https://rewindex.com/company/sinch/incidents/ntwnwcgc5hx2.md) | none | 2021-12-20 04:44 UTC | 2021-12-20 05:40 UTC | 56 min | resolved |
| [Delivery Issue - Pakistan - Telenor](https://rewindex.com/company/sinch/incidents/jztykpk43v9z.md) | minor | 2021-12-20 08:53 UTC | 2021-12-21 03:49 UTC | 19 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35956](https://rewindex.com/company/sinch/incidents/z6771y412d3x.md) | none | 2021-12-20 17:28 UTC | 2021-12-20 22:44 UTC | 5.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DLR traffic \| TT\# MNOC-35955](https://rewindex.com/company/sinch/incidents/9y6s7wdclnb3.md) | minor | 2021-12-20 18:51 UTC | 2021-12-21 00:29 UTC | 5.6 h | resolved |
| [Delivery Issue Iraq - Zain](https://rewindex.com/company/sinch/incidents/tf43454w38gn.md) | minor | 2021-12-21 08:34 UTC | 2021-12-22 07:43 UTC | 23 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR traffic \| TT\# MNOC-35988](https://rewindex.com/company/sinch/incidents/l992d9jcgp0f.md) | minor | 2021-12-21 21:18 UTC | 2021-12-21 22:39 UTC | 1.4 h | resolved |
| [Calling Services - Performance Degradation](https://rewindex.com/company/sinch/incidents/pz1my9k9nnrn.md) | minor | 2021-12-22 12:45 UTC | 2021-12-22 14:29 UTC | 1.7 h | resolved |
| [Whatsapp Service Outage](https://rewindex.com/company/sinch/incidents/7w40zwv05y03.md) | minor | 2021-12-22 13:12 UTC | 2021-12-22 15:52 UTC | 2.7 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-36020](https://rewindex.com/company/sinch/incidents/hxwmqrp0bq23.md) | none | 2021-12-22 17:07 UTC | 2021-12-23 04:34 UTC | 11 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/30jxgvnthzgq.md) | minor | 2021-12-23 14:30 UTC | 2021-12-23 21:07 UTC | 6.6 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-36041](https://rewindex.com/company/sinch/incidents/w65sj93yw92y.md) | none | 2021-12-23 16:27 UTC | 2021-12-23 17:46 UTC | 1.3 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of MO, MT and DLR traffic towards one of our partners in Brunei Darussalam](https://rewindex.com/company/sinch/incidents/b8qq9fykz39v.md) | minor | 2021-12-24 00:29 UTC | 2021-12-24 07:44 UTC | 7.3 h | resolved |
| [Delivery Issue Brazil - Claro](https://rewindex.com/company/sinch/incidents/fyvm780dpw6f.md) | minor | 2021-12-26 07:06 UTC | 2021-12-26 13:20 UTC | 6.2 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/mfkwpvgcwppm.md) | minor | 2021-12-26 12:07 UTC | 2021-12-27 09:45 UTC | 22 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/kjqpqb8g175y.md) | minor | 2021-12-27 12:37 UTC | 2021-12-28 09:00 UTC | 20 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/zpyjh9py42pl.md) | minor | 2021-12-28 13:15 UTC | 2021-12-29 06:52 UTC | 18 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-36139](https://rewindex.com/company/sinch/incidents/9hb6qfhrpjfx.md) | minor | 2021-12-28 18:16 UTC | 2021-12-29 04:03 UTC | 9.8 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Potential Delay in delivery of MT and DLR \| TT\# MNOC-36144](https://rewindex.com/company/sinch/incidents/k3g74lcfjfhx.md) | none | 2021-12-29 03:35 UTC | 2021-12-29 03:35 UTC | 0 min | resolved |
| [Delivery issues - Eir Ireland](https://rewindex.com/company/sinch/incidents/dt93299v32jq.md) | minor | 2021-12-29 11:07 UTC | 2021-12-31 04:01 UTC | 41 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR traffic \| TT\# MNOC-36162](https://rewindex.com/company/sinch/incidents/lqdkmgdbrjn1.md) | minor | 2021-12-29 20:29 UTC | 2021-12-29 22:08 UTC | 1.6 h | resolved |
| [Delivery issues -  Ooredoo Tunisia](https://rewindex.com/company/sinch/incidents/vf2m2d8g1mdl.md) | minor | 2021-12-30 06:27 UTC | 2021-12-30 21:49 UTC | 15 h | resolved |
| [Delivery Issue Brazil - Claro](https://rewindex.com/company/sinch/incidents/79rx16n8bl07.md) | minor | 2021-12-31 00:54 UTC | 2021-12-31 10:43 UTC | 9.8 h | resolved |
| [PSTN Performance Degradation - Brazil](https://rewindex.com/company/sinch/incidents/t489fknfjkwh.md) | minor | 2021-12-31 01:42 UTC | 2021-12-31 05:51 UTC | 4.2 h | resolved |
| [Delivery issues - Vodafone Egypt](https://rewindex.com/company/sinch/incidents/nrmf55nwt2hr.md) | minor | 2021-12-31 16:32 UTC | 2021-12-31 21:58 UTC | 5.4 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-36204](https://rewindex.com/company/sinch/incidents/6c9tj82w8q72.md) | minor | 2021-12-31 17:58 UTC | 2022-01-01 04:38 UTC | 11 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] \[Updated SSL Certificate Installation\] Nova HTTP SMS, HTTP Lookup, and Legacy SMPP](https://rewindex.com/company/sinch/incidents/hrn9clxsl2bf.md) | maintenance | 2021-12-01 01:00 UTC | 2021-12-01 03:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2480](https://rewindex.com/company/sinch/incidents/vfc2gqzj4371.md) | maintenance | 2021-12-01 05:00 UTC | 2021-12-01 09:30 UTC | 4.5 h | resolved |
| [\[Scheduled\] Scheduled Reach Platform Maintenance](https://rewindex.com/company/sinch/incidents/p471c36vk6vw.md) | maintenance | 2021-12-01 07:00 UTC | 2021-12-01 12:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our CA sites loadbalancers](https://rewindex.com/company/sinch/incidents/mcky9y1g0bp7.md) | maintenance | 2021-12-01 08:00 UTC | 2021-12-01 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\] REST, Nova SMPP, httpsms, Lookup, and Legacy SMPP](https://rewindex.com/company/sinch/incidents/453799rq3gtx.md) | maintenance | 2021-12-01 09:01 UTC | 2021-12-01 11:00 UTC | 2.0 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/x2nhkxll8svx.md) | maintenance | 2021-12-01 19:32 UTC | 2021-12-02 00:30 UTC | 5.0 h | resolved |
| [\[Scheduled\] Customer Portal routine maintenance](https://rewindex.com/company/sinch/incidents/gvry599swjgd.md) | maintenance | 2021-12-02 06:00 UTC | 2021-12-02 08:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our AU and BR sites loadbalancers](https://rewindex.com/company/sinch/incidents/r3bydq60cy09.md) | maintenance | 2021-12-02 15:00 UTC | 2021-12-02 16:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9374](https://rewindex.com/company/sinch/incidents/0vl6hy99l82k.md) | maintenance | 2021-12-03 07:00 UTC | 2021-12-03 10:06 UTC | 3.1 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35421](https://rewindex.com/company/sinch/incidents/73093g8hzw12.md) | maintenance | 2021-12-03 16:31 UTC | 2021-12-04 04:58 UTC | 12 h | resolved |
| [\[Scheduled\] DI MMX 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000004433411](https://rewindex.com/company/sinch/incidents/40zqk5x7cmj6.md) | maintenance | 2021-12-04 00:00 UTC | 2021-12-04 02:13 UTC | 2.2 h | resolved |
| [\[Scheduled\] DI LTE 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\# INC000004433411](https://rewindex.com/company/sinch/incidents/6t2xzvnflccp.md) | maintenance | 2021-12-04 00:00 UTC | 2021-12-04 02:14 UTC | 2.2 h | resolved |
| [\[Scheduled\] DI SMS 365\| Enterprise Messaging \| Message Manager Application Maintenance \| PCR Number \# 9407](https://rewindex.com/company/sinch/incidents/69vvxxlw0xxl.md) | maintenance | 2021-12-04 18:00 UTC | 2021-12-04 20:08 UTC | 2.1 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| System and Application Maintenance \| PCR Number \# PSD-9382](https://rewindex.com/company/sinch/incidents/9mgnv636y3l4.md) | maintenance | 2021-12-04 18:00 UTC | 2021-12-04 20:36 UTC | 2.6 h | resolved |
| [DI SMS 365 \| Enterprise Messaging \| Delay in delivery of DR from AT&T Mobility in United States \| MNOC-35450](https://rewindex.com/company/sinch/incidents/2zw4q31ffm9d.md) | maintenance | 2021-12-04 18:15 UTC | 2021-12-05 11:27 UTC | 17 h | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9375](https://rewindex.com/company/sinch/incidents/3xksxy2nq1lb.md) | maintenance | 2021-12-06 07:02 UTC | 2021-12-06 09:45 UTC | 2.7 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - Mblox Legacy (EU)](https://rewindex.com/company/sinch/incidents/qx1222dc13zs.md) | maintenance | 2021-12-07 00:00 UTC | 2021-12-07 02:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\]  REST, Nova HTTP SMS, HTTP Lookup](https://rewindex.com/company/sinch/incidents/39w2gxj34gp3.md) | maintenance | 2021-12-07 01:00 UTC | 2021-12-07 03:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9376](https://rewindex.com/company/sinch/incidents/rb7c55g3xby9.md) | maintenance | 2021-12-07 07:01 UTC | 2021-12-07 11:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\]  US Nova HTTP SMS and Lookup, REST API, and Legacy REDHOT API](https://rewindex.com/company/sinch/incidents/nmqk301q3wsp.md) | maintenance | 2021-12-07 09:00 UTC | 2021-12-07 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - Security Enhancement - US3 Site](https://rewindex.com/company/sinch/incidents/z35zm42381xh.md) | maintenance | 2021-12-07 09:01 UTC | 2021-12-07 10:00 UTC | 59 min | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| SDI to Sinch Vodafone New Zealand Migration](https://rewindex.com/company/sinch/incidents/8849nbj380f6.md) | maintenance | 2021-12-07 11:56 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9377](https://rewindex.com/company/sinch/incidents/r9q7ng8v2gjt.md) | maintenance | 2021-12-08 07:00 UTC | 2021-12-08 09:15 UTC | 2.3 h | resolved |
| [\[Scheduled\] DI MMS 365 – MM4 \| Operator Services \| Application Maintenance \| Ref Number\# PSD-9417](https://rewindex.com/company/sinch/incidents/2mqzb87hl910.md) | maintenance | 2021-12-08 07:00 UTC | 2021-12-08 11:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] Conversation API Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/hdrjdn8ghl6x.md) | maintenance | 2021-12-08 08:00 UTC | 2021-12-08 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Conversation API Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/vhwl11f0bmz6.md) | maintenance | 2021-12-08 09:01 UTC | 2021-12-08 10:00 UTC | 59 min | resolved |
| [\[Scheduled\] DI E-Mail 365 \| Enterprise Messaging \| 3rd party Application Maintenance \| Ref Number\# NA](https://rewindex.com/company/sinch/incidents/jvw9yx3zmd30.md) | maintenance | 2021-12-08 09:01 UTC | 2021-12-08 13:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - Mblox Legacy (US)](https://rewindex.com/company/sinch/incidents/yjph5w478vsw.md) | maintenance | 2021-12-08 09:01 UTC | 2021-12-08 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| SDI to Sinch 2Degrees New Zealand Migration](https://rewindex.com/company/sinch/incidents/5fn0ghqwv6bl.md) | maintenance | 2021-12-08 12:02 UTC | 2021-12-08 13:00 UTC | 58 min | resolved |
| [\[Scheduled\] DI MMX 365 \| Operator Services \| 3rd party Network Maintenance \| Ref Number\#  INC000004621385](https://rewindex.com/company/sinch/incidents/qhrq8f0nxq3z.md) | maintenance | 2021-12-08 22:00 UTC | 2021-12-09 06:00 UTC | 8.0 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\] Nova SMPP](https://rewindex.com/company/sinch/incidents/f8n2hzr412y3.md) | maintenance | 2021-12-09 01:00 UTC | 2021-12-09 03:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# 2482](https://rewindex.com/company/sinch/incidents/d2yhr1y0ld0m.md) | maintenance | 2021-12-09 05:00 UTC | 2021-12-09 09:30 UTC | 4.5 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35576](https://rewindex.com/company/sinch/incidents/c4hk41p54vgv.md) | maintenance | 2021-12-09 05:47 UTC | 2021-12-10 17:45 UTC | 36 h | resolved |
| [\[Scheduled\] DI MMS 365 – MM7 \| Operator Services \| Application Maintenance \| Ref Number\# PSD-9418](https://rewindex.com/company/sinch/incidents/8zmvkcdp07bb.md) | maintenance | 2021-12-09 07:00 UTC | 2021-12-09 11:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9378](https://rewindex.com/company/sinch/incidents/4wr21v6t0qql.md) | maintenance | 2021-12-09 07:00 UTC | 2021-12-09 10:36 UTC | 3.6 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\] US Nova and Legacy Aries](https://rewindex.com/company/sinch/incidents/d7s5mvv2c2y8.md) | maintenance | 2021-12-09 09:00 UTC | 2021-12-09 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Enterprise Messaging \| CMP Portal Application Maintenance \| PCR Number \# 9413](https://rewindex.com/company/sinch/incidents/ktpnf3d5czn4.md) | maintenance | 2021-12-09 10:00 UTC | 2021-12-09 10:35 UTC | 35 min | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9379](https://rewindex.com/company/sinch/incidents/ncpmg0c24j4g.md) | maintenance | 2021-12-10 07:00 UTC | 2021-12-10 09:42 UTC | 2.7 h | resolved |
| [\[Scheduled\] Customer Support - Ticketing System](https://rewindex.com/company/sinch/incidents/gznnykhh3kpz.md) | maintenance | 2021-12-12 09:35 UTC | 2021-12-12 11:00 UTC | 1.4 h | resolved |
| [\[Scheduled\] Customer Support - Ticketing System](https://rewindex.com/company/sinch/incidents/4z4rz8thcr1j.md) | maintenance | 2021-12-12 15:57 UTC | 2021-12-12 17:00 UTC | 1.1 h | resolved |
| [DI MMS 365 - MM7 \| Enterprise Messaging \| Delay in delivery of Multimedia messages \| TT\# MNOC-35688](https://rewindex.com/company/sinch/incidents/7r003n1hx9zy.md) | maintenance | 2021-12-12 17:23 UTC | 2021-12-13 04:46 UTC | 11 h | resolved |
| [\[Scheduled\] \[ANNOUNCEMENT\] DI SMSx, iSMS, MMS (All) & IPX Services \| Operator Services Network Operations\| Network Freeze Notification for Christmas/New Year 2021-22](https://rewindex.com/company/sinch/incidents/jd8q9mhdns9g.md) | maintenance | 2021-12-13 00:01 UTC | 2022-01-04 00:00 UTC | 22 d | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9380](https://rewindex.com/company/sinch/incidents/422zbvjml4h9.md) | maintenance | 2021-12-13 07:00 UTC | 2021-12-13 10:36 UTC | 3.6 h | resolved |
| [\[Scheduled\] DI SMS 365\| Operator Services \| Application Maintenance \| PCR Number \# PSD-9420](https://rewindex.com/company/sinch/incidents/3dl33z9xq4dl.md) | maintenance | 2021-12-14 03:00 UTC | 2021-12-14 04:06 UTC | 1.1 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/ycddggy5f91n.md) | maintenance | 2021-12-14 05:01 UTC | 2021-12-14 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] DI Live Link 365 & DI SMS 365 (SMSx) \| Enterprise Messaging & Operator Services \|Application Maintenance \| PCR Number \# PSD-9419](https://rewindex.com/company/sinch/incidents/dwtv7b8hplgp.md) | maintenance | 2021-12-14 08:00 UTC | 2021-12-14 08:57 UTC | 57 min | resolved |
| [\[Scheduled\] Services \| Operator Services \| System Maintenance \| PCR Number \# PSD-9419](https://rewindex.com/company/sinch/incidents/mp3bx9fw22jv.md) | maintenance | 2021-12-14 08:57 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] DI SMS 365 \| Operator Services \| Application Maintenance \| PCR Number \# PSD-9424](https://rewindex.com/company/sinch/incidents/psz4qgw6sd42.md) | maintenance | 2021-12-14 09:00 UTC | 2021-12-14 11:37 UTC | 2.6 h | resolved |
| [\[Scheduled\] Sinch Emergency Maintenance - Mblox Legacy](https://rewindex.com/company/sinch/incidents/vd2sb8ct4gc0.md) | maintenance | 2021-12-14 09:00 UTC | 2021-12-14 10:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] DI SMS 365 \| Enterprise Messaging \| 3rd Party Planned Maintenance - Multiple Airtel networks](https://rewindex.com/company/sinch/incidents/ck1pw4hk8rx1.md) | maintenance | 2021-12-14 18:30 UTC | 2021-12-14 23:30 UTC | 5.0 h | resolved |
| [\[Scheduled\] \[Updated SSL Certificate Installation\] US HTTP SMS](https://rewindex.com/company/sinch/incidents/7mrlf5lxtf68.md) | maintenance | 2021-12-16 09:00 UTC | 2021-12-16 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Emergency Maintenance - Mblox Legacy](https://rewindex.com/company/sinch/incidents/d0155zmd1sb2.md) | maintenance | 2021-12-16 09:00 UTC | 2021-12-16 10:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Toll Free Number Provider](https://rewindex.com/company/sinch/incidents/vp7gyz4gg83t.md) | maintenance | 2021-12-17 05:00 UTC | 2021-12-17 06:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Emergency Maintenance - EU1 Site](https://rewindex.com/company/sinch/incidents/zxr572nwjqjb.md) | maintenance | 2021-12-22 01:00 UTC | 2021-12-22 02:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - Orange Belgium - Delivery Report Freeze](https://rewindex.com/company/sinch/incidents/0dq1k688p23y.md) | maintenance | 2021-12-24 17:00 UTC | 2021-12-25 02:00 UTC | 9.0 h | resolved |
| [\[Scheduled\] DI SMS 365\| Enterprise Messaging \| 3rd party Network Maintenance \| Ref Number\# NA](https://rewindex.com/company/sinch/incidents/372n1cdn1xsl.md) | maintenance | 2021-12-27 15:00 UTC | 2021-12-27 19:00 UTC | 4.0 h | resolved |

## Cite this

Sinch posted 72 status incidents in December 2021 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sinch/2021/12
- Citation: Sinch, “Sinch in December 2021” (2021-12-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/2021/12 (CC BY 4.0).
- Markdown link: `[Sinch: Sinch in December 2021 (2021-12-01)](https://rewindex.com/company/sinch/2021/12)`


---
Canonical: https://rewindex.com/company/sinch/2021/12 · Markdown: https://rewindex.com/company/sinch/2021/12.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:54:02.551Z