# Sinch in March 2021: incidents, uptime and changes

> Sinch in March 2021: 32 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/2021/03
Last updated: 2021-04-06T15:02:00Z

- Incidents posted: 32 (major/critical: 0) · Maintenance: 32
- By vendor impact label: minor 31, none 1
- Uptime (vendor-reported): 100% free of major/critical incidents, 47.84% free of any incident; outage time 0 min, incident time 16.2 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [February 2021](https://rewindex.com/company/sinch/2021/02.md) · Next: [April 2021](https://rewindex.com/company/sinch/2021/04.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 |
| --- | --- | --- | --- | --- | --- |
| [Delivery issue Unitel MN](https://rewindex.com/company/sinch/incidents/b9z2l4rc3n4v.md) | minor | 2021-03-02 11:44 UTC | 2021-03-03 11:55 UTC | 24 h | resolved |
| [Sinch Operator Notification - T-Mobile US](https://rewindex.com/company/sinch/incidents/6bktfv6zngrm.md) | minor | 2021-03-04 19:53 UTC | 2021-03-04 21:23 UTC | 1.5 h | resolved |
| [Sinch Operator Notification - Ooredoo Kuwait](https://rewindex.com/company/sinch/incidents/zfz82bw66n2f.md) | minor | 2021-03-06 16:19 UTC | 2021-03-08 12:50 UTC | 45 h | resolved |
| [Sinch Service Notifiaction - Network disturbance - Australian site](https://rewindex.com/company/sinch/incidents/s2g06lcrwcvq.md) | minor | 2021-03-07 17:38 UTC | 2021-03-07 20:21 UTC | 2.7 h | resolved |
| [Customer Support - Ticketing System](https://rewindex.com/company/sinch/incidents/6m8cfcwy7fg1.md) | minor | 2021-03-09 13:58 UTC | 2021-03-09 19:03 UTC | 5.1 h | resolved |
| [Sinch Operator Notification - Toll Free Number provider](https://rewindex.com/company/sinch/incidents/mhb5qhx6wbjr.md) | minor | 2021-03-11 06:46 UTC | 2021-03-11 15:20 UTC | 8.6 h | resolved |
| [Delivery issues - Vodafone UK](https://rewindex.com/company/sinch/incidents/wrntzxr0rp0b.md) | minor | 2021-03-11 07:26 UTC | 2021-03-11 10:11 UTC | 2.8 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/4ln226yfvb1y.md) | minor | 2021-03-11 10:33 UTC | 2021-03-12 17:51 UTC | 31 h | resolved |
| [MMS delivery delays](https://rewindex.com/company/sinch/incidents/byw5v4f7s1cl.md) | minor | 2021-03-11 18:39 UTC | 2021-03-11 20:32 UTC | 1.9 h | resolved |
| [Sinch Operator Notification - Toll Free Number provider](https://rewindex.com/company/sinch/incidents/7nh15s38pyjw.md) | minor | 2021-03-13 18:58 UTC | 2021-03-13 20:24 UTC | 1.4 h | resolved |
| [Delivery Issue Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/x0th2ctfwz2v.md) | minor | 2021-03-13 19:51 UTC | 2021-03-14 09:21 UTC | 14 h | resolved |
| [Sinch External Notification - Chile 2-Way](https://rewindex.com/company/sinch/incidents/skkdqqnfzrmn.md) | minor | 2021-03-13 22:03 UTC | 2021-03-18 12:42 UTC | 5 d | resolved |
| [Sinch Operator Notification - Sprint US](https://rewindex.com/company/sinch/incidents/fzrcvp01kjk6.md) | minor | 2021-03-14 08:43 UTC | 2021-03-14 13:21 UTC | 4.6 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/b2xzpc4hgqp0.md) | minor | 2021-03-14 09:34 UTC | 2021-03-14 10:49 UTC | 1.3 h | resolved |
| [Delivery Issues - Claro Brazil](https://rewindex.com/company/sinch/incidents/t4xw3ktr1fft.md) | minor | 2021-03-14 20:46 UTC | 2021-03-15 02:25 UTC | 5.7 h | resolved |
| [Delivery Issue- US and CA](https://rewindex.com/company/sinch/incidents/rnrb02dx6wv1.md) | minor | 2021-03-15 04:25 UTC | 2021-03-15 05:09 UTC | 44 min | resolved |
| [Delivery Issue Iraq - Asiacell](https://rewindex.com/company/sinch/incidents/kc537jjvm604.md) | minor | 2021-03-17 04:44 UTC | 2021-03-17 06:58 UTC | 2.2 h | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/mhn8hxsy29vh.md) | minor | 2021-03-17 16:11 UTC | 2021-03-19 21:25 UTC | 2 d | resolved |
| [Connectivity Issues - Google Voice and C-Spire US](https://rewindex.com/company/sinch/incidents/27k1dpwtwl84.md) | minor | 2021-03-18 12:56 UTC | 2021-03-22 13:07 UTC | 4 d | resolved |
| [Sinch Operator Notification - T-Mobile US](https://rewindex.com/company/sinch/incidents/sp8ymrltqkzf.md) | minor | 2021-03-19 19:20 UTC | 2021-03-19 21:48 UTC | 2.5 h | resolved |
| [Delivery issues - Proximus, Belgium](https://rewindex.com/company/sinch/incidents/zbdczrgyw9h9.md) | minor | 2021-03-20 10:28 UTC | 2021-03-20 15:50 UTC | 5.4 h | resolved |
| [Sinch Operator Notification - T-Mobile US](https://rewindex.com/company/sinch/incidents/z4qmln6q6296.md) | minor | 2021-03-25 05:37 UTC | 2021-03-25 10:07 UTC | 4.5 h | resolved |
| [Operator Notification - Verizon US](https://rewindex.com/company/sinch/incidents/zz11lwjhynsj.md) | minor | 2021-03-25 17:53 UTC | 2021-03-25 18:26 UTC | 33 min | resolved |
| [Sinch Operator Notification - Sprint US](https://rewindex.com/company/sinch/incidents/4tcfzz8v1345.md) | minor | 2021-03-25 18:35 UTC | 2021-03-26 05:38 UTC | 11 h | resolved |
| [Operator Notification - Verizon US](https://rewindex.com/company/sinch/incidents/gx8b6mzcy30r.md) | minor | 2021-03-27 15:44 UTC | 2021-03-27 16:09 UTC | 25 min | resolved |
| [Service Notification - Dashboard](https://rewindex.com/company/sinch/incidents/s8drrgsv0wqt.md) | minor | 2021-03-28 05:06 UTC | 2021-03-28 15:57 UTC | 11 h | resolved |
| [Delivery Issue Pakistan - Jazz](https://rewindex.com/company/sinch/incidents/9lp7v4d74pkt.md) | minor | 2021-03-28 21:54 UTC | 2021-03-29 02:22 UTC | 4.5 h | resolved |
| [Sinch Service Notification - 10DLC US](https://rewindex.com/company/sinch/incidents/5p8tlz0v7qt8.md) | none | 2021-03-29 16:54 UTC | 2021-03-29 16:54 UTC | 0 min | resolved |
| [Operator Notification - Eir Telecom Ireland](https://rewindex.com/company/sinch/incidents/ln2qmfcky2qk.md) | minor | 2021-03-30 12:17 UTC | 2021-03-30 21:27 UTC | 9.2 h | resolved |
| [Operator Notification - M1 Singapore](https://rewindex.com/company/sinch/incidents/6yfgrrz85c59.md) | minor | 2021-03-30 15:02 UTC | 2021-04-07 02:25 UTC | 7 d | resolved |
| [Service Notification - Data Calling degradation](https://rewindex.com/company/sinch/incidents/t6wqcnb2r3hd.md) | minor | 2021-03-30 16:10 UTC | 2021-03-30 17:18 UTC | 1.1 h | resolved |
| [Delivery Issue- Bell Canada - CA](https://rewindex.com/company/sinch/incidents/r2rcr3blg7wl.md) | minor | 2021-03-31 23:42 UTC | 2021-04-01 04:40 UTC | 5.0 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] External Maintenance - US Toll Free Number Provider](https://rewindex.com/company/sinch/incidents/gjk1wbsrgbdr.md) | maintenance | 2021-03-02 05:00 UTC | 2021-03-02 09:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] Sinch Operator Notification - US Regional Operators](https://rewindex.com/company/sinch/incidents/tl7n85rwn2ms.md) | maintenance | 2021-03-02 10:00 UTC | 2021-03-02 12:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Sinch Scheduled Maintenance - US5 Site](https://rewindex.com/company/sinch/incidents/fn0v3hpd1bzq.md) | maintenance | 2021-03-03 09:00 UTC | 2021-03-03 12:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] Planned Maintenance - REST API](https://rewindex.com/company/sinch/incidents/4z0dcz9khq94.md) | maintenance | 2021-03-04 08:00 UTC | 2021-03-04 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - US and Canada Long Number Provider](https://rewindex.com/company/sinch/incidents/gphztng3t274.md) | maintenance | 2021-03-09 06:00 UTC | 2021-03-09 14:00 UTC | 8.0 h | resolved |
| [Delivery issues - US](https://rewindex.com/company/sinch/incidents/mn4ffgmy819y.md) | maintenance | 2021-03-09 06:01 UTC | 2021-03-09 23:28 UTC | 17 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/xqcbnppbbss3.md) | maintenance | 2021-03-09 08:00 UTC | 2021-03-09 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/q6r5gv9tmqwv.md) | maintenance | 2021-03-09 08:22 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/22gyl2v4lvdq.md) | maintenance | 2021-03-09 08:22 UTC | not resolved | ongoing | unknown |
| [\[Scheduled\] Sinch Operator Notification - US Regional Operators](https://rewindex.com/company/sinch/incidents/84s3ws4r4x73.md) | maintenance | 2021-03-09 10:00 UTC | 2021-03-09 12:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/rv9v6vmw23l0.md) | maintenance | 2021-03-09 10:00 UTC | 2021-03-09 11:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Operator Notification - 10DLC Number provider](https://rewindex.com/company/sinch/incidents/7khls8msxbd5.md) | maintenance | 2021-03-12 04:00 UTC | 2021-03-12 06:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/hx5p4d791hvy.md) | maintenance | 2021-03-17 04:00 UTC | 2021-03-17 11:00 UTC | 7.0 h | resolved |
| [\[Scheduled\] Sinch Planned Maintenance: T-Mobile US - 17 March 2021](https://rewindex.com/company/sinch/incidents/dsf4wp6jpy2x.md) | maintenance | 2021-03-17 08:00 UTC | 2021-03-17 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/0cx4m6c6wgt1.md) | maintenance | 2021-03-18 04:00 UTC | 2021-03-18 11:00 UTC | 7.0 h | resolved |
| [\[Scheduled\] External Maintenance - US Cellular](https://rewindex.com/company/sinch/incidents/4z7mq92k7962.md) | maintenance | 2021-03-23 04:30 UTC | 2021-03-23 10:30 UTC | 6.0 h | resolved |
| [\[Scheduled\] Planned Maintenance - REST API](https://rewindex.com/company/sinch/incidents/gfk0s6jcg2fx.md) | maintenance | 2021-03-23 09:00 UTC | 2021-03-23 11:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] Scheduled Network Maintenance - EU2 Site](https://rewindex.com/company/sinch/incidents/lw851drf6561.md) | maintenance | 2021-03-24 01:00 UTC | 2021-03-24 03:01 UTC | 2.0 h | resolved |
| [\[Scheduled\] Scheduled Reach Platform Maintenance](https://rewindex.com/company/sinch/incidents/ly5s0072yb59.md) | maintenance | 2021-03-24 07:00 UTC | 2021-03-24 12:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our CA sites loadbalancers](https://rewindex.com/company/sinch/incidents/8j4j3x2245sn.md) | maintenance | 2021-03-24 08:00 UTC | 2021-03-24 09:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Scheduled Maintenance - Data Calling Platform](https://rewindex.com/company/sinch/incidents/235n1psv14qb.md) | maintenance | 2021-03-24 16:00 UTC | 2021-03-24 20:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] Customer Portal routine maintenance](https://rewindex.com/company/sinch/incidents/hbnfp6916c0h.md) | maintenance | 2021-03-25 06:01 UTC | 2021-03-25 07:00 UTC | 59 min | resolved |
| [\[Scheduled\] External Maintenance - US and Canada Long Number Provider](https://rewindex.com/company/sinch/incidents/9ckvwd7d94s4.md) | maintenance | 2021-03-25 06:01 UTC | 2021-03-25 10:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our AU sites loadbalancers](https://rewindex.com/company/sinch/incidents/rfjhw5587b38.md) | maintenance | 2021-03-25 15:00 UTC | 2021-03-25 16:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Sinch Maintenance Notification on our BR sites loadbalancers](https://rewindex.com/company/sinch/incidents/sz3gr1gysf76.md) | maintenance | 2021-03-25 15:00 UTC | 2021-03-25 16:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile - US](https://rewindex.com/company/sinch/incidents/9c9p5tj3jgsc.md) | maintenance | 2021-03-26 04:00 UTC | 2021-03-26 11:00 UTC | 7.0 h | resolved |
| [\[Scheduled\] Sinch Emergency Network Maintenance: MMS](https://rewindex.com/company/sinch/incidents/xyp8p6nsgs7m.md) | maintenance | 2021-03-26 09:01 UTC | 2021-03-26 10:00 UTC | 59 min | resolved |
| [\[Scheduled\] External Maintenance - US Cellular](https://rewindex.com/company/sinch/incidents/f9sgn5q9wktd.md) | maintenance | 2021-03-30 05:01 UTC | 2021-03-30 10:01 UTC | 5.0 h | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - EU](https://rewindex.com/company/sinch/incidents/qb214bn5mwtt.md) | maintenance | 2021-03-30 08:01 UTC | 2021-03-30 09:00 UTC | 59 min | resolved |
| [\[Scheduled\] WhatsApp Routine Maintenance - US](https://rewindex.com/company/sinch/incidents/rnwsrgtdmqft.md) | maintenance | 2021-03-30 10:00 UTC | 2021-03-30 11:30 UTC | 1.5 h | resolved |
| [\[Scheduled\] External Maintenance - T-Mobile US](https://rewindex.com/company/sinch/incidents/942878tc50tp.md) | maintenance | 2021-03-31 06:00 UTC | 2021-03-31 10:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] External Maintenance - AT&T - US](https://rewindex.com/company/sinch/incidents/sdrq52jdhx15.md) | maintenance | 2021-03-31 06:00 UTC | 2021-03-31 12:00 UTC | 6.0 h | resolved |

## Cite this

Sinch posted 32 status incidents in March 2021 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sinch/2021/03
- Citation: Sinch, “Sinch in March 2021” (2021-03-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/2021/03 (CC BY 4.0).
- Markdown link: `[Sinch: Sinch in March 2021 (2021-03-01)](https://rewindex.com/company/sinch/2021/03)`


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Canonical: https://rewindex.com/company/sinch/2021/03 · Markdown: https://rewindex.com/company/sinch/2021/03.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:43:46.424Z