# Twilio: Programmable SMS experienced elevated 21612 errors

> Twilio status incident “Programmable SMS experienced elevated 21612 errors” on 2019-11-12: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs
Last updated: 2019-11-12T18:48:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2019-11-12 18:48 UTC · Resolved: 2019-11-12 18:48 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/05gqjn7ywjrs](https://status.twilio.com/incidents/05gqjn7ywjrs)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2019-11-12 18:48 UTC: Programmable SMS experienced elevated SMS 21612 errors, where our internal number lookup failed for specific phone numbers in the US and Canada, causing Twilio not to send text messages. This incident lasted from 4:00am PST to 10:24am PST but has been resolved and we have fully recovered.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: none) posted by Twilio, started 2019-11-12 18:48 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs
- Citation: Twilio, “Programmable SMS experienced elevated 21612 errors” (2019-11-12 18:48 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs (CC BY 4.0).
- Markdown link: `[Twilio: Programmable SMS experienced elevated 21612 errors (2019-11-12)](https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs)`


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Canonical: https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs · Markdown: https://rewindex.com/company/twilio/incidents/05gqjn7ywjrs.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/05gqjn7ywjrs · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:49:10.496Z