# Twilio: SMS Delivery Failures to Verizon handsets on the East Coast

> Twilio status incident “SMS Delivery Failures to Verizon handsets on the East Coast” on 2019-03-12: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/md5kzc8py6w2
Last updated: 2019-03-12T08:18:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2019-03-12 08:18 UTC · Resolved: 2019-03-12 08:18 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/md5kzc8py6w2](https://status.twilio.com/incidents/md5kzc8py6w2)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2019-03-12 08:18 UTC: Between 01:18AM to 06:02AM (PDT) on March 12th, Verizon experienced an industry-wide outage on their network which caused a subset of SMS sent to Verizon handsets on the East Coast to fail. During this timeframe, customers may have experienced SMS messages sent to Verizon handsets on the East Coast failing with an “Undelivered” status callback and a Twilio Error Code of “30003" or “30005”. Verizon have confirmed that they have now fully restored service and we can confirm from metrics and testing that we are no longer observing failures

_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 2019-03-12 08:18 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/md5kzc8py6w2
- Citation: Twilio, “SMS Delivery Failures to Verizon handsets on the East Coast” (2019-03-12 08:18 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/md5kzc8py6w2 (CC BY 4.0).
- Markdown link: `[Twilio: SMS Delivery Failures to Verizon handsets on the East Coast (2019-03-12)](https://rewindex.com/company/twilio/incidents/md5kzc8py6w2)`


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Canonical: https://rewindex.com/company/twilio/incidents/md5kzc8py6w2 · Markdown: https://rewindex.com/company/twilio/incidents/md5kzc8py6w2.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/md5kzc8py6w2 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:37:00.704Z