# Twilio in April 2016: incidents, uptime and changes > Twilio in April 2016: 25 incidents on its status page (3 major or critical), 99.32% 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/2016/04 Last updated: 2016-05-01T00:00:00Z - Incidents posted: 25 (major/critical: 3) · Maintenance: 0 - By vendor impact label: major 3, minor 14, none 8 - Uptime (vendor-reported): 99.32% free of major/critical incidents, 92.45% free of any incident; outage time 4 h 50 min, incident time 2.3 days - Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0 - Previous month: [March 2016](https://rewindex.com/company/twilio/2016/03.md) · Next: [May 2016](https://rewindex.com/company/twilio/2016/05.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 | | --- | --- | --- | --- | --- | --- | | [Elevated error rates for Programmable Voice](https://rewindex.com/company/twilio/incidents/kvr67w9h7w20.md) | major | 2016-04-12 21:30 UTC | 2016-04-12 22:33 UTC | 1.1 h | resolved | | [Email Notification Delays](https://rewindex.com/company/twilio/incidents/ss1ncj1qjyzc.md) | major | 2016-04-25 18:15 UTC | 2016-04-25 21:47 UTC | 3.5 h | resolved | | [Elevated Conference error rates on new participants in all regions](https://rewindex.com/company/twilio/incidents/bh9m6kv07slt.md) | major | 2016-04-25 21:24 UTC | 2016-04-25 22:02 UTC | 38 min | resolved | ## All incidents | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status | | --- | --- | --- | --- | --- | --- | | [Malformed URLs returned for retrieving recordings](https://rewindex.com/company/twilio/incidents/7m57jz9gys0d.md) | none | 2016-04-01 12:51 UTC | 2016-04-01 12:51 UTC | 0 min | resolved | | [Twilio JavaScript Client version 1.2 initialization is failing with errors](https://rewindex.com/company/twilio/incidents/96wrsx2mqr4q.md) | minor | 2016-04-04 15:24 UTC | 2016-04-04 15:58 UTC | 34 min | resolved | | [Voice Degradation](https://rewindex.com/company/twilio/incidents/dym4btvtcj5k.md) | none | 2016-04-04 19:12 UTC | 2016-04-04 19:12 UTC | 0 min | resolved | | [Outgoing calls from Twilio Client WebRTC temporarily unavailable for some users.](https://rewindex.com/company/twilio/incidents/3pxyy3940h0y.md) | none | 2016-04-04 21:41 UTC | 2016-04-04 21:41 UTC | 0 min | resolved | | [Transcriptions service interruption](https://rewindex.com/company/twilio/incidents/f5dl0ktkp857.md) | minor | 2016-04-06 02:18 UTC | 2016-04-06 03:23 UTC | 1.1 h | resolved | | [Elevated filtering on sending SMS messages in the U.S. and Canada](https://rewindex.com/company/twilio/incidents/rq4cfb8yc9d7.md) | minor | 2016-04-06 19:06 UTC | 2016-04-06 20:52 UTC | 1.8 h | resolved | | [A portion of call dequeue operations failing](https://rewindex.com/company/twilio/incidents/0pqtvpt7flrj.md) | minor | 2016-04-07 03:48 UTC | 2016-04-07 05:26 UTC | 1.6 h | resolved | | [A fraction of European phone numbers are unavailable](https://rewindex.com/company/twilio/incidents/96ycjl3vt8mg.md) | minor | 2016-04-07 20:06 UTC | 2016-04-08 08:56 UTC | 13 h | resolved | | [jp.twilio.com is inaccessible](https://rewindex.com/company/twilio/incidents/sntcp25b56t2.md) | minor | 2016-04-08 01:47 UTC | 2016-04-08 03:14 UTC | 1.4 h | resolved | | [Fraction of Regional Italian phone numbers are unavailable.](https://rewindex.com/company/twilio/incidents/t1k3kf3qszg5.md) | minor | 2016-04-09 14:25 UTC | 2016-04-09 22:09 UTC | 7.7 h | resolved | | [Elevated error rates for Programmable Voice](https://rewindex.com/company/twilio/incidents/wyp74twlxsk5.md) | none | 2016-04-12 18:51 UTC | 2016-04-12 18:51 UTC | 0 min | resolved | | [Elevated error rates for Programmable Voice](https://rewindex.com/company/twilio/incidents/kvr67w9h7w20.md) | major | 2016-04-12 21:30 UTC | 2016-04-12 22:33 UTC | 1.1 h | resolved | | [Monitor Alerts are experiencing a processing delay](https://rewindex.com/company/twilio/incidents/kkxw6ykzr2j3.md) | minor | 2016-04-15 18:45 UTC | 2016-04-15 19:49 UTC | 1.1 h | resolved | | [Large Percentage of Brazilian Phone Numbers are unavailable](https://rewindex.com/company/twilio/incidents/xgnk772s6mf2.md) | minor | 2016-04-18 21:23 UTC | 2016-04-19 02:25 UTC | 5.0 h | resolved | | [Intermittent US T-Mobile SMS Issue](https://rewindex.com/company/twilio/incidents/36hb1980bzdj.md) | none | 2016-04-19 10:59 UTC | 2016-04-19 18:36 UTC | 7.6 h | resolved | | [Elevated carrier filtering sending SMS messages to T-Mobile](https://rewindex.com/company/twilio/incidents/8nf940mg6jn7.md) | minor | 2016-04-20 22:06 UTC | 2016-04-21 05:15 UTC | 7.2 h | resolved | | [Increased error levels across multiple services](https://rewindex.com/company/twilio/incidents/q56vp9b4thk4.md) | minor | 2016-04-21 21:08 UTC | 2016-04-21 21:23 UTC | 15 min | resolved | | [Degradation in Usage API](https://rewindex.com/company/twilio/incidents/rj2k8dlx0pdp.md) | none | 2016-04-23 19:56 UTC | 2016-04-23 21:09 UTC | 1.2 h | resolved | | [Email Notification Delays](https://rewindex.com/company/twilio/incidents/ss1ncj1qjyzc.md) | major | 2016-04-25 18:15 UTC | 2016-04-25 21:47 UTC | 3.5 h | resolved | | [Elevated Conference error rates on new participants in all regions](https://rewindex.com/company/twilio/incidents/bh9m6kv07slt.md) | major | 2016-04-25 21:24 UTC | 2016-04-25 22:02 UTC | 38 min | resolved | | [Phone number lookup for Caller Name resulting in 500 errors](https://rewindex.com/company/twilio/incidents/fn7z874yt62b.md) | minor | 2016-04-26 19:53 UTC | 2016-04-26 20:28 UTC | 35 min | resolved | | [Delays in Notifications](https://rewindex.com/company/twilio/incidents/r3yfckrrsgg5.md) | minor | 2016-04-26 21:41 UTC | 2016-04-27 07:16 UTC | 9.6 h | resolved | | [Issues with incoming calls to some Brazil phone numbers](https://rewindex.com/company/twilio/incidents/4xgysc93krn8.md) | none | 2016-04-27 00:19 UTC | 2016-04-27 00:19 UTC | 0 min | resolved | | [Elevated error levels on Programmable Voice /Calls API](https://rewindex.com/company/twilio/incidents/5zjhsgkgyttp.md) | none | 2016-04-28 19:47 UTC | 2016-04-28 20:02 UTC | 15 min | resolved | | [Increased latency and intermittent timeouts sending messages with Programmable Messaging.](https://rewindex.com/company/twilio/incidents/s2q5q4nlbr9q.md) | minor | 2016-04-29 02:44 UTC | 2016-04-29 02:58 UTC | 14 min | resolved | ## Cite this Twilio posted 25 status incidents in April 2016 (3 major or critical); 0 price changes and 0 notable page changes observed. - Canonical URL: https://rewindex.com/company/twilio/2016/04 - Citation: Twilio, “Twilio in April 2016” (2016-04-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/2016/04 (CC BY 4.0). - Markdown link: `[Twilio: Twilio in April 2016 (2016-04-01)](https://rewindex.com/company/twilio/2016/04)` --- Canonical: https://rewindex.com/company/twilio/2016/04 · Markdown: https://rewindex.com/company/twilio/2016/04.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:10:18.072Z