# Twilio in August 2019: incidents, uptime and changes

> Twilio in August 2019: 52 incidents on its status page (2 major or critical), 99.82% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Twilio’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/twilio/2019/08
Last updated: 2019-09-01T00:00:00Z

- Incidents posted: 52 (major/critical: 2) · Maintenance: 6
- By vendor impact label: critical 1, major 1, minor 44, none 6
- Uptime (vendor-reported): 99.82% free of major/critical incidents, 69.71% free of any incident; outage time 1 h 18 min, incident time 9.4 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [July 2019](https://rewindex.com/company/twilio/2019/07.md) · Next: [September 2019](https://rewindex.com/company/twilio/2019/09.md) · [All months](https://rewindex.com/company/twilio/reports.md) · [Twilio](https://rewindex.com/company/twilio.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 |
| --- | --- | --- | --- | --- | --- |
| [We are currently experiencing issues with displaying Voice Insights Data in the Twilio Console](https://rewindex.com/company/twilio/incidents/p9xd3yl0vl02.md) | critical | 2019-08-23 14:50 UTC | 2019-08-23 15:11 UTC | 21 min | resolved |
| [Inbound and outbound calls failure in Thailand](https://rewindex.com/company/twilio/incidents/4pgxr3bhsplg.md) | major | 2019-08-03 15:53 UTC | 2019-08-03 16:50 UTC | 57 min | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [SMS Long Code delivery notification delays for US Verizon](https://rewindex.com/company/twilio/incidents/7yln4kdb2nz7.md) | minor | 2019-08-01 02:05 UTC | 2019-08-01 05:23 UTC | 3.3 h | resolved |
| [SMS Delivery Issues to +372821 numbers in Estonia](https://rewindex.com/company/twilio/incidents/cl1lk3tpghl1.md) | minor | 2019-08-02 13:33 UTC | 2019-08-05 09:10 UTC | 3 d | resolved |
| [Authy 2FA Issue](https://rewindex.com/company/twilio/incidents/1pstzn561qcw.md) | none | 2019-08-02 21:23 UTC | 2019-08-02 21:23 UTC | 0 min | resolved |
| [Inbound and outbound calls failure in Thailand](https://rewindex.com/company/twilio/incidents/4pgxr3bhsplg.md) | major | 2019-08-03 15:53 UTC | 2019-08-03 16:50 UTC | 57 min | resolved |
| [SMS delivery degradation towards Indonesia](https://rewindex.com/company/twilio/incidents/f5hqtsmrt16f.md) | minor | 2019-08-04 08:50 UTC | 2019-08-04 18:26 UTC | 9.6 h | resolved |
| [SMS delivery degradation towards a subset of Indonesia Handsets](https://rewindex.com/company/twilio/incidents/1rdy88g4z3sn.md) | minor | 2019-08-04 23:42 UTC | 2019-08-05 01:41 UTC | 2.0 h | resolved |
| [Authy 2FA Issue](https://rewindex.com/company/twilio/incidents/ptfq1k19xbd6.md) | none | 2019-08-05 15:48 UTC | 2019-08-05 15:48 UTC | 0 min | resolved |
| [SMS Delivery Issues to US Sprint](https://rewindex.com/company/twilio/incidents/8bfjsl3d07yw.md) | minor | 2019-08-06 06:08 UTC | 2019-08-06 10:08 UTC | 4.0 h | resolved |
| [SMS delivery degraded towards Globacom, Nigeria](https://rewindex.com/company/twilio/incidents/gm4g2c8hcc4w.md) | minor | 2019-08-06 11:14 UTC | 2019-08-06 14:03 UTC | 2.8 h | resolved |
| [Elevated Errors on Twilio Console](https://rewindex.com/company/twilio/incidents/n506gt3ychgg.md) | none | 2019-08-06 18:57 UTC | 2019-08-06 18:57 UTC | 0 min | resolved |
| [SMS Delivery Issue to Brazil Claro Mobile Devices](https://rewindex.com/company/twilio/incidents/pd0z9lhcywx1.md) | minor | 2019-08-06 22:24 UTC | 2019-08-07 01:00 UTC | 2.6 h | resolved |
| [SMS Delivery Issue to US Gigsky Mobile Devices](https://rewindex.com/company/twilio/incidents/qpryvm5sv4pc.md) | minor | 2019-08-07 02:55 UTC | 2019-08-07 04:12 UTC | 1.3 h | resolved |
| [Domestic SMS SenderId preservation degradation through Singapore Singtel network](https://rewindex.com/company/twilio/incidents/vch564915xhj.md) | minor | 2019-08-08 05:08 UTC | 2019-08-08 06:50 UTC | 1.7 h | resolved |
| [SMS delivery degradation towards Du network in UAE](https://rewindex.com/company/twilio/incidents/yy26b0yzbr4k.md) | minor | 2019-08-08 14:30 UTC | 2019-08-09 00:03 UTC | 9.6 h | resolved |
| [SMS Delivery Issue to Zain Mobile Devices](https://rewindex.com/company/twilio/incidents/2g3kqv583grc.md) | minor | 2019-08-09 20:46 UTC | 2019-08-09 22:32 UTC | 1.8 h | resolved |
| [SMS Delivery Issue to Saudi Arabia/Iraq Zain Mobile Devices](https://rewindex.com/company/twilio/incidents/8tgfjpqjpj2t.md) | minor | 2019-08-10 02:31 UTC | 2019-08-10 06:05 UTC | 3.6 h | resolved |
| [SMS Delivery Issue to Cambodia Smart Mobile Devices](https://rewindex.com/company/twilio/incidents/jdsd8xz2v52s.md) | minor | 2019-08-10 17:11 UTC | 2019-08-12 23:26 UTC | 2 d | resolved |
| [Inbound call failures to some Sweden numbers](https://rewindex.com/company/twilio/incidents/ylpgkdvht3pt.md) | minor | 2019-08-10 18:36 UTC | 2019-08-10 19:26 UTC | 50 min | resolved |
| [MMS delivery status callbacks issues to US handsets over Longcode](https://rewindex.com/company/twilio/incidents/rnr2k8gxds2y.md) | minor | 2019-08-12 05:36 UTC | 2019-08-12 18:19 UTC | 13 h | resolved |
| [SMS Delivery Issues to Banglalink Bangladesh](https://rewindex.com/company/twilio/incidents/qzjzh53qg08j.md) | minor | 2019-08-12 13:37 UTC | 2019-08-12 15:00 UTC | 1.4 h | resolved |
| [Degraded network conditions](https://rewindex.com/company/twilio/incidents/hmhk8s9104wv.md) | minor | 2019-08-13 06:50 UTC | 2019-08-13 08:09 UTC | 1.3 h | resolved |
| [Calls failing to Twilio phone numbers in Slovenia and Croatia](https://rewindex.com/company/twilio/incidents/006mxr30dmgm.md) | minor | 2019-08-13 11:40 UTC | 2019-08-13 12:40 UTC | 1.0 h | resolved |
| [Calls failing to Twilio phone numbers in Brazil](https://rewindex.com/company/twilio/incidents/drjll8cb13ry.md) | minor | 2019-08-14 14:59 UTC | 2019-08-14 17:23 UTC | 2.4 h | resolved |
| [Pricing API returning HTTP 500 errors](https://rewindex.com/company/twilio/incidents/zxq9t74rzhxn.md) | minor | 2019-08-15 14:17 UTC | 2019-08-15 15:03 UTC | 46 min | resolved |
| [SMS Delivery Issues to Claro in Costa Rica](https://rewindex.com/company/twilio/incidents/jqb1kkchnsx3.md) | minor | 2019-08-16 05:27 UTC | 2019-08-16 16:32 UTC | 11 h | resolved |
| [Temporary SMS Delivery Receipt Degradation](https://rewindex.com/company/twilio/incidents/80cjjk8w5b76.md) | none | 2019-08-19 23:16 UTC | 2019-08-20 01:45 UTC | 2.5 h | resolved |
| [REST API errors sending and receiving WhatsApp messages](https://rewindex.com/company/twilio/incidents/bvwnfdzppl6t.md) | minor | 2019-08-20 01:00 UTC | 2019-08-20 03:02 UTC | 2.0 h | resolved |
| [SMS delivery delays to Megafon handsets in Russia](https://rewindex.com/company/twilio/incidents/52njxp145kfp.md) | minor | 2019-08-20 13:50 UTC | 2019-08-20 16:19 UTC | 2.5 h | resolved |
| [SMS Delivery Delays to Telenor Denmark](https://rewindex.com/company/twilio/incidents/fb98wrrckdtq.md) | none | 2019-08-20 15:31 UTC | 2019-08-20 16:37 UTC | 1.1 h | resolved |
| [Inbound calls degraded to subset of Brazil toll free numbers](https://rewindex.com/company/twilio/incidents/4fnqxf5v1mn4.md) | minor | 2019-08-20 16:42 UTC | 2019-08-21 00:11 UTC | 7.5 h | resolved |
| [Garbled incoming SMS Messages from Verizon Handsets](https://rewindex.com/company/twilio/incidents/ktwbhw4p6kns.md) | minor | 2019-08-21 16:11 UTC | 2019-08-21 20:19 UTC | 4.1 h | resolved |
| [Calls failing to Twilio phone numbers in Brazil](https://rewindex.com/company/twilio/incidents/8j83j70kc8tv.md) | minor | 2019-08-22 13:49 UTC | 2019-08-22 14:58 UTC | 1.1 h | resolved |
| [SMS delivery degradation to Transatel France](https://rewindex.com/company/twilio/incidents/yr70hn6bxh3v.md) | minor | 2019-08-22 18:09 UTC | 2019-08-22 19:36 UTC | 1.4 h | resolved |
| [Message delivery is degraded for Messenger and WhatsApp](https://rewindex.com/company/twilio/incidents/vhwdhzh73mft.md) | minor | 2019-08-22 18:53 UTC | 2019-08-22 22:33 UTC | 3.7 h | resolved |
| [We are currently experiencing issues with displaying Voice Insights Data in the Twilio Console](https://rewindex.com/company/twilio/incidents/p9xd3yl0vl02.md) | critical | 2019-08-23 14:50 UTC | 2019-08-23 15:11 UTC | 21 min | resolved |
| [Increased Studio REST API failure rate](https://rewindex.com/company/twilio/incidents/751p966g7n3q.md) | none | 2019-08-23 15:38 UTC | 2019-08-23 15:38 UTC | 0 min | resolved |
| [SMS delivery delays to Colombia Tigo](https://rewindex.com/company/twilio/incidents/rvlzw5bkswdy.md) | minor | 2019-08-23 17:20 UTC | 2019-08-23 20:38 UTC | 3.3 h | resolved |
| [Issues creating new Flex projects](https://rewindex.com/company/twilio/incidents/c1ys36t5ddbd.md) | minor | 2019-08-23 19:43 UTC | 2019-08-23 22:57 UTC | 3.2 h | resolved |
| [Inbound calls failing to subset of Brazil +5585 phone numbers](https://rewindex.com/company/twilio/incidents/c3dbjxlnd6r4.md) | minor | 2019-08-23 20:10 UTC | 2019-08-24 00:59 UTC | 4.8 h | resolved |
| [Inbound calls failing to subset of Kenya +25420 phone numbers](https://rewindex.com/company/twilio/incidents/0pk4zwc9w59q.md) | minor | 2019-08-26 03:08 UTC | 2019-08-26 07:42 UTC | 4.6 h | resolved |
| [SMS delivery degradation towards Claro, Colombia](https://rewindex.com/company/twilio/incidents/rfr0pdlv77vq.md) | minor | 2019-08-26 05:16 UTC | 2019-08-26 08:55 UTC | 3.6 h | resolved |
| [Degraded Audio quality on calls to some Twilio numbers](https://rewindex.com/company/twilio/incidents/tqmsgq2ww696.md) | minor | 2019-08-26 10:50 UTC | 2019-08-26 12:53 UTC | 2.0 h | resolved |
| [Delays sending and receiving MMS over US and Canada Long Codes](https://rewindex.com/company/twilio/incidents/rd1dsh6hgwsj.md) | minor | 2019-08-26 20:13 UTC | 2019-08-26 21:48 UTC | 1.6 h | resolved |
| [Delays receiving SMS on Netherlands +31 phone numbers](https://rewindex.com/company/twilio/incidents/tqsj17dk13qh.md) | minor | 2019-08-26 22:11 UTC | 2019-08-27 00:33 UTC | 2.4 h | resolved |
| [SMS delivery degradation from subset of US short codes towards US Cellular](https://rewindex.com/company/twilio/incidents/7hsb03dr2z81.md) | minor | 2019-08-26 22:45 UTC | 2019-08-27 00:34 UTC | 1.8 h | resolved |
| [SMS Delivery Delays to US Sprint Network](https://rewindex.com/company/twilio/incidents/qnt6pjstpcxk.md) | minor | 2019-08-27 14:23 UTC | 2019-08-27 18:13 UTC | 3.8 h | resolved |
| [Delays in receiving MMS messages to Twilio numbers](https://rewindex.com/company/twilio/incidents/l854bxhhdr0z.md) | minor | 2019-08-27 15:22 UTC | 2019-08-27 18:13 UTC | 2.9 h | resolved |
| [Short code SMS delivery degradation to T-Mobile US handsets](https://rewindex.com/company/twilio/incidents/pll7bl4rs36h.md) | minor | 2019-08-28 09:09 UTC | 2019-08-28 12:50 UTC | 3.7 h | resolved |
| [Inbound calls failing to Twilio Latvia numbers](https://rewindex.com/company/twilio/incidents/kkwddz7p2z0h.md) | minor | 2019-08-29 05:03 UTC | 2019-08-29 08:08 UTC | 3.1 h | resolved |
| [SMS Delivery Degradation to Argentina Telefonica/Movistar networks.](https://rewindex.com/company/twilio/incidents/s1jhxbhrcz9c.md) | minor | 2019-08-30 06:43 UTC | 2019-08-30 08:49 UTC | 2.1 h | resolved |
| [Toll Free SMS Delivery Delays to and from T-Mobile US handsets](https://rewindex.com/company/twilio/incidents/q1g2g90f44gp.md) | minor | 2019-08-30 06:57 UTC | 2019-08-30 10:13 UTC | 3.3 h | resolved |
| [Delivery delays for domestic SMS traffic in France](https://rewindex.com/company/twilio/incidents/3hlh9m8ns9km.md) | minor | 2019-08-31 13:53 UTC | 2019-08-31 14:35 UTC | 42 min | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] AT&T Mexico - SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/l66g0m3ws9qn.md) | maintenance | 2019-08-01 05:00 UTC | 2019-08-01 06:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] T-Mobile US - SMS Carrier Maintenance -  23:00 PDT 8/1/2019 -  03:00 PDT 8/2/2019](https://rewindex.com/company/twilio/incidents/p4qgwh18z5jj.md) | maintenance | 2019-08-02 08:18 UTC | 2019-08-02 10:01 UTC | 1.7 h | resolved |
| [\[Scheduled\] AT&T Mexico - SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/cyx8gs239tj9.md) | maintenance | 2019-08-05 05:00 UTC | 2019-08-05 11:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] Twilio Interconnect Ashburn, Virginia (US1) Planned Maintenance](https://rewindex.com/company/twilio/incidents/r9bvykf23zrt.md) | maintenance | 2019-08-17 04:00 UTC | 2019-08-17 10:32 UTC | 6.5 h | resolved |
| [\[Scheduled\] Change to "address" parameter in Phone Number Provisioning API](https://rewindex.com/company/twilio/incidents/2gpzpvx7hnsn.md) | maintenance | 2019-08-20 07:00 UTC | 2019-08-20 10:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] US Cellular SMS carrier maintenance Aug 21 21:00 - Aug 22 04:00 PDT](https://rewindex.com/company/twilio/incidents/yp9yzxyd0ff3.md) | maintenance | 2019-08-22 04:00 UTC | 2019-08-22 11:00 UTC | 7.0 h | resolved |

## Cite this

Twilio posted 52 status incidents in August 2019 (2 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/twilio/2019/08
- Citation: Twilio, “Twilio in August 2019” (2019-08-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/2019/08 (CC BY 4.0).
- Markdown link: `[Twilio: Twilio in August 2019 (2019-08-01)](https://rewindex.com/company/twilio/2019/08)`


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Canonical: https://rewindex.com/company/twilio/2019/08 · Markdown: https://rewindex.com/company/twilio/2019/08.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:28:57.353Z