# Twilio in November 2019: incidents, uptime and changes

> Twilio in November 2019: 45 incidents on its status page (3 major or critical), 99.47% 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/2019/11
Last updated: 2019-12-01T00:00:00Z

- Incidents posted: 45 (major/critical: 3) · Maintenance: 23
- By vendor impact label: critical 1, major 2, minor 38, none 4
- Uptime (vendor-reported): 99.47% free of major/critical incidents, 65.81% free of any incident; outage time 3 h 47 min, incident time 10.3 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [October 2019](https://rewindex.com/company/twilio/2019/10.md) · Next: [December 2019](https://rewindex.com/company/twilio/2019/12.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 |
| --- | --- | --- | --- | --- | --- |
| [Flex WFO outage](https://rewindex.com/company/twilio/incidents/3yzj862z96k7.md) | critical | 2019-11-07 12:49 UTC | 2019-11-07 14:02 UTC | 1.2 h | resolved |
| [Voice Insights Metrics and Events Currently Unavailable for Twilio Client Calls](https://rewindex.com/company/twilio/incidents/pr48yhj06htm.md) | major | 2019-11-19 18:45 UTC | 2019-11-19 19:43 UTC | 58 min | resolved |
| [Outbound SMS Delivery degradation towards Vodafone New Zealand numbers](https://rewindex.com/company/twilio/incidents/vd5dw1tsvkc9.md) | major | 2019-11-29 23:54 UTC | 2019-11-30 01:30 UTC | 1.6 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Inbound and outbound MMS delivery delays on AT&T US handsets](https://rewindex.com/company/twilio/incidents/zp5zwn9rhtqf.md) | minor | 2019-11-01 02:35 UTC | 2019-11-01 05:38 UTC | 3.0 h | resolved |
| [SMS Delivery Degradation Towards DTAC, Thailand](https://rewindex.com/company/twilio/incidents/68p5yk0rwhv3.md) | minor | 2019-11-01 06:37 UTC | 2019-11-01 07:38 UTC | 1.0 h | resolved |
| [Studio API returning HTTP 500 Errors](https://rewindex.com/company/twilio/incidents/hwqpb21xwjt0.md) | minor | 2019-11-01 21:02 UTC | 2019-11-01 21:28 UTC | 26 min | resolved |
| [Errors while using Flex](https://rewindex.com/company/twilio/incidents/880x9px12qj2.md) | none | 2019-11-01 22:12 UTC | 2019-11-01 22:12 UTC | 0 min | resolved |
| [Receiving calls to some France numbers are partially degraded](https://rewindex.com/company/twilio/incidents/g67pv347kxqz.md) | minor | 2019-11-04 09:36 UTC | 2019-11-04 12:43 UTC | 3.1 h | resolved |
| [Receiving calls in some France numbers are partially degraded](https://rewindex.com/company/twilio/incidents/s3kdbgk40qdc.md) | minor | 2019-11-04 13:46 UTC | 2019-11-05 19:57 UTC | 30 h | resolved |
| [Delays sending messages using Programmable Messaging Copilot from 8:03am - 8:33am Pacific Time](https://rewindex.com/company/twilio/incidents/zg38pj522f5c.md) | minor | 2019-11-04 16:33 UTC | 2019-11-04 17:06 UTC | 33 min | resolved |
| [SMS Delivery Delays Towards Brazil Nextel (724-39)](https://rewindex.com/company/twilio/incidents/ggkfhrzq68mr.md) | minor | 2019-11-04 22:03 UTC | 2019-11-05 05:21 UTC | 7.3 h | resolved |
| [Flex WFO outage](https://rewindex.com/company/twilio/incidents/3yzj862z96k7.md) | critical | 2019-11-07 12:49 UTC | 2019-11-07 14:02 UTC | 1.2 h | resolved |
| [Autopilot Console Degraded](https://rewindex.com/company/twilio/incidents/vh9nyhr91vjg.md) | minor | 2019-11-07 19:07 UTC | 2019-11-07 19:40 UTC | 33 min | resolved |
| [Duplicate SMS Messages Sent To US/CA Numbers](https://rewindex.com/company/twilio/incidents/7yvsdk6x783m.md) | none | 2019-11-07 20:46 UTC | 2019-11-07 20:46 UTC | 0 min | resolved |
| [SMS Delivery Issues to toward Beeline Russia (250-99)](https://rewindex.com/company/twilio/incidents/89z8w6ztgk39.md) | minor | 2019-11-09 10:43 UTC | 2019-11-09 11:56 UTC | 1.2 h | resolved |
| [SMS Delivery Delays towards Beeline, Russia](https://rewindex.com/company/twilio/incidents/h1jgq6vv8bkf.md) | minor | 2019-11-11 09:15 UTC | 2019-11-11 13:05 UTC | 3.8 h | resolved |
| [Programmable SMS experienced elevated 21612 errors](https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs.md) | none | 2019-11-12 18:48 UTC | 2019-11-12 18:48 UTC | 0 min | resolved |
| [US Shortcode MMS Delivery Degradation towards multiple carriers](https://rewindex.com/company/twilio/incidents/v0bgz35qpf7t.md) | minor | 2019-11-12 23:16 UTC | 2019-11-13 02:35 UTC | 3.3 h | resolved |
| [Inbound Call Failures to Phone Numbers in Turkey](https://rewindex.com/company/twilio/incidents/5qz0k213f1rm.md) | minor | 2019-11-13 09:53 UTC | 2019-11-14 10:27 UTC | 25 h | resolved |
| [Programmable Chat Console User Detail Retrieval Failures](https://rewindex.com/company/twilio/incidents/l7d1hd4z2bfl.md) | minor | 2019-11-13 22:13 UTC | 2019-11-14 01:07 UTC | 2.9 h | resolved |
| [SMS Delivery Degradation towards MTN Nigeria](https://rewindex.com/company/twilio/incidents/131y1r25rxzn.md) | minor | 2019-11-14 01:19 UTC | 2019-11-14 09:55 UTC | 8.6 h | resolved |
| [SMS Delivery Degradation towards AT&T Mexico](https://rewindex.com/company/twilio/incidents/pln4bqwtbcz8.md) | minor | 2019-11-14 03:03 UTC | 2019-11-14 04:02 UTC | 59 min | resolved |
| [SMS Delivery Degradation Towards Airtel India](https://rewindex.com/company/twilio/incidents/467gc9mp38dd.md) | minor | 2019-11-14 03:56 UTC | 2019-11-14 06:00 UTC | 2.1 h | resolved |
| [Inbound Call Failures to Phone Numbers in the Czech Republic](https://rewindex.com/company/twilio/incidents/dyksxcvc8lzd.md) | minor | 2019-11-14 15:05 UTC | 2019-11-14 19:34 UTC | 4.5 h | resolved |
| [SMS Delivery Degradation towards Telcel Mexico](https://rewindex.com/company/twilio/incidents/0gb2gshsksdw.md) | minor | 2019-11-14 21:20 UTC | 2019-11-14 23:52 UTC | 2.5 h | resolved |
| [Inbound Call Failures to Phone Numbers in France and Estonia](https://rewindex.com/company/twilio/incidents/qhxdrfvydr26.md) | minor | 2019-11-15 11:39 UTC | 2019-11-15 12:01 UTC | 22 min | resolved |
| [US Inbound and Outbound Toll Free SMS delivery degradation](https://rewindex.com/company/twilio/incidents/0mjr9q1ntczr.md) | minor | 2019-11-15 17:00 UTC | 2019-11-16 00:21 UTC | 7.3 h | resolved |
| [US Short Code Message Status Event delays towards Verizon](https://rewindex.com/company/twilio/incidents/vkns7xjqj0gb.md) | minor | 2019-11-15 18:49 UTC | 2019-11-15 20:10 UTC | 1.4 h | resolved |
| [Delayed Emails to Support Teams](https://rewindex.com/company/twilio/incidents/vy3r2l2jtrzv.md) | minor | 2019-11-15 21:53 UTC | 2019-11-17 16:53 UTC | 43 h | resolved |
| [Inbound Toll-Free SMS Degradation for SMS sent from Verizon](https://rewindex.com/company/twilio/incidents/3f99y9ykj1ws.md) | minor | 2019-11-17 07:02 UTC | 2019-11-17 18:22 UTC | 11 h | resolved |
| [Calls failing to Twilio phone numbers in Italy](https://rewindex.com/company/twilio/incidents/13dnhbp616nx.md) | minor | 2019-11-18 15:36 UTC | 2019-11-18 16:59 UTC | 1.4 h | resolved |
| [Voice Insights Metrics and Events Currently Unavailable for Twilio Client Calls](https://rewindex.com/company/twilio/incidents/pr48yhj06htm.md) | major | 2019-11-19 18:45 UTC | 2019-11-19 19:43 UTC | 58 min | resolved |
| [Status Callback Degradation Towards Bouygues France](https://rewindex.com/company/twilio/incidents/1jh9vvsq2k91.md) | minor | 2019-11-20 07:11 UTC | 2019-11-20 09:43 UTC | 2.5 h | resolved |
| [SMS Delivery Degradation Towards U.S. Cellular](https://rewindex.com/company/twilio/incidents/gmhnjdtsmdr1.md) | minor | 2019-11-20 17:44 UTC | 2019-11-20 19:56 UTC | 2.2 h | resolved |
| [Billing Delays for a Subset of Twilio Accounts](https://rewindex.com/company/twilio/incidents/j561mq404kt7.md) | minor | 2019-11-20 18:15 UTC | 2019-11-20 20:49 UTC | 2.6 h | resolved |
| [SMS Delivery Degradation Towards AT&T in Mexico](https://rewindex.com/company/twilio/incidents/13jz8tr7f9sv.md) | minor | 2019-11-20 22:11 UTC | 2019-11-20 23:38 UTC | 1.4 h | resolved |
| [SMS Delivery Degradation Towards MTN Uganda](https://rewindex.com/company/twilio/incidents/gt2dpcbkgjp6.md) | minor | 2019-11-21 03:32 UTC | 2019-11-21 20:18 UTC | 17 h | resolved |
| [SMS Delivery Degradation Towards U-Mobile Malaysia](https://rewindex.com/company/twilio/incidents/n93mtt4c5wct.md) | minor | 2019-11-21 06:18 UTC | 2019-11-21 08:55 UTC | 2.6 h | resolved |
| [MMS Delivery Degradation From US Short Codes](https://rewindex.com/company/twilio/incidents/fgq7f7x97m9h.md) | minor | 2019-11-22 19:08 UTC | 2019-11-22 22:00 UTC | 2.9 h | resolved |
| [SMS Delivery Degradation Towards Zain Iraq](https://rewindex.com/company/twilio/incidents/hvcm4tss5qbt.md) | minor | 2019-11-23 19:21 UTC | 2019-11-23 20:29 UTC | 1.1 h | resolved |
| [SMS Delivery Degradation Towards Rogers Canada](https://rewindex.com/company/twilio/incidents/j9qtz2wg63wl.md) | minor | 2019-11-25 16:00 UTC | 2019-11-25 16:58 UTC | 58 min | resolved |
| [MMS degradation from US Short Codes](https://rewindex.com/company/twilio/incidents/sjsfszwkgvy4.md) | minor | 2019-11-25 18:07 UTC | 2019-11-25 18:43 UTC | 36 min | resolved |
| [Support ticket submissions to support@authy.com failing](https://rewindex.com/company/twilio/incidents/jyg6mfcntpb0.md) | minor | 2019-11-26 22:53 UTC | 2019-11-26 23:43 UTC | 50 min | resolved |
| [SMS delivery delays towards US over Toll-free numbers](https://rewindex.com/company/twilio/incidents/mr5wqgtfblrq.md) | minor | 2019-11-27 01:48 UTC | 2019-11-27 03:47 UTC | 2.0 h | resolved |
| [Adding a Verified Caller IDs Degraded](https://rewindex.com/company/twilio/incidents/d11tb74hvgz2.md) | none | 2019-11-27 04:26 UTC | 2019-11-27 04:26 UTC | 0 min | resolved |
| [Outbound US Toll Free SMS delays.](https://rewindex.com/company/twilio/incidents/yxb2mdqcwsrd.md) | minor | 2019-11-27 16:54 UTC | 2019-11-27 21:47 UTC | 4.9 h | resolved |
| [MMS delivery delays to US Operators](https://rewindex.com/company/twilio/incidents/r4xpn7sq80kz.md) | minor | 2019-11-29 16:36 UTC | 2019-11-30 02:01 UTC | 9.4 h | resolved |
| [Outbound SMS Delivery degradation towards Vodafone New Zealand numbers](https://rewindex.com/company/twilio/incidents/vd5dw1tsvkc9.md) | major | 2019-11-29 23:54 UTC | 2019-11-30 01:30 UTC | 1.6 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] AT&T US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/w24fphz0jq49.md) | maintenance | 2019-11-04 08:01 UTC | 2019-11-04 12:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] AT&T US SMS/MMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/gdgn1gfwsflh.md) | maintenance | 2019-11-05 02:01 UTC | 2019-11-05 12:00 UTC | 10.0 h | resolved |
| [\[Scheduled\] Sprint US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/n9ymgzvy2pf4.md) | maintenance | 2019-11-05 05:01 UTC | 2019-11-05 10:01 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sprint US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/plmrjd28tdn3.md) | maintenance | 2019-11-06 04:00 UTC | 2019-11-06 11:00 UTC | 7.0 h | resolved |
| [\[Scheduled\] AT&T US SMS/MMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/nd67nrs5zw37.md) | maintenance | 2019-11-06 05:01 UTC | 2019-11-06 08:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/3qrrd40yp2nn.md) | maintenance | 2019-11-07 06:00 UTC | 2019-11-07 11:00 UTC | 5.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/853zsb8hr5s0.md) | maintenance | 2019-11-08 07:01 UTC | 2019-11-08 11:00 UTC | 4.0 h | resolved |
| [\[Scheduled\] US SMS Carrier Partner Maintenance](https://rewindex.com/company/twilio/incidents/1hzgzq1lygtl.md) | maintenance | 2019-11-13 05:00 UTC | 2019-11-13 08:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/1sqddvfcwnkb.md) | maintenance | 2019-11-13 05:30 UTC | 2019-11-13 11:00 UTC | 5.5 h | resolved |
| [\[Scheduled\] AT&T Mexico - SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/tbvms0dpgtj1.md) | maintenance | 2019-11-13 06:00 UTC | 2019-11-13 12:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] AT&T US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/xyljnmnsw73k.md) | maintenance | 2019-11-14 02:01 UTC | 2019-11-14 12:01 UTC | 10 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/jqs7kwsp9b6m.md) | maintenance | 2019-11-14 07:00 UTC | 2019-11-14 11:01 UTC | 4.0 h | resolved |
| [\[Scheduled\] Megafon Russia - SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/8hqlzzj6q29l.md) | maintenance | 2019-11-15 02:00 UTC | 2019-11-15 04:00 UTC | 2.0 h | resolved |
| [\[Scheduled\] AT&T US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/8v1gjp23hfmx.md) | maintenance | 2019-11-15 02:00 UTC | 2019-11-15 12:00 UTC | 10 h | resolved |
| [\[Scheduled\] US SMS Carrier Partner Maintenance](https://rewindex.com/company/twilio/incidents/8m3hj4533yyk.md) | maintenance | 2019-11-15 05:00 UTC | 2019-11-15 08:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/6rp1b9w4hflb.md) | maintenance | 2019-11-18 08:00 UTC | 2019-11-18 11:01 UTC | 3.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/t3ln2hg1316z.md) | maintenance | 2019-11-20 06:01 UTC | 2019-11-20 11:01 UTC | 5.0 h | resolved |
| [\[Scheduled\] Sprint US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/gt5phvsff077.md) | maintenance | 2019-11-22 05:01 UTC | 2019-11-22 13:00 UTC | 8.0 h | resolved |
| [\[Scheduled\] US Carrier Voice Network Planned Maintenance](https://rewindex.com/company/twilio/incidents/jg076n51wws0.md) | maintenance | 2019-11-22 06:00 UTC | 2019-11-22 07:59 UTC | 2.0 h | resolved |
| [\[Scheduled\] AT&T Mexico SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/jc89dkb6l4qk.md) | maintenance | 2019-11-22 06:00 UTC | 2019-11-22 12:00 UTC | 6.0 h | resolved |
| [\[Scheduled\] U.S. SMS Toll Free Carrier Partner Emergency Maintenance](https://rewindex.com/company/twilio/incidents/z9zpdpr4ppdx.md) | maintenance | 2019-11-23 18:00 UTC | 2019-11-23 19:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] T-Mobile US SMS Carrier Maintenance](https://rewindex.com/company/twilio/incidents/b2xns69h5d6m.md) | maintenance | 2019-11-25 08:00 UTC | 2019-11-25 11:00 UTC | 3.0 h | resolved |
| [\[Scheduled\] US/CA Toll-Free SMS Carrier Partner Maintenance](https://rewindex.com/company/twilio/incidents/yrpgwdr4jnwg.md) | maintenance | 2019-11-27 07:00 UTC | 2019-11-27 07:45 UTC | 45 min | resolved |

## Cite this

Twilio posted 45 status incidents in November 2019 (3 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/twilio/2019/11
- Citation: Twilio, “Twilio in November 2019” (2019-11-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/2019/11 (CC BY 4.0).
- Markdown link: `[Twilio: Twilio in November 2019 (2019-11-01)](https://rewindex.com/company/twilio/2019/11)`


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Canonical: https://rewindex.com/company/twilio/2019/11 · Markdown: https://rewindex.com/company/twilio/2019/11.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T12:54:21.270Z