# Twilio: SMS Delivery Delays for a  Small Subset of Phone Numbers in US Cellular Network

> Twilio status incident “SMS Delivery Delays for a Small Subset of Phone Numbers in US Cellular Network” on 2021-03-23: impact minor (vendor’s label), 3.8 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/gb104ckvs74s
Last updated: 2021-03-23T09:52:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-03-23 06:07 UTC · Resolved: 2021-03-23 09:52 UTC · Duration: 3.8 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/gb104ckvs74s](https://status.twilio.com/incidents/gb104ckvs74s)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-03-23 09:52 UTC: We are no longer experiencing SMS delivery delays when sending messages to a small subset of phone numbers in US Cellular Network from Twilio long code and short code numbers. This incident has been resolved.

_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: minor) posted by Twilio, started 2021-03-23 06:07 UTC, resolved after 3.8 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/gb104ckvs74s
- Citation: Twilio, “SMS Delivery Delays for a  Small Subset of Phone Numbers in US Cellular Network” (2021-03-23 06:07 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/gb104ckvs74s (CC BY 4.0).
- Markdown link: `[Twilio: SMS Delivery Delays for a  Small Subset of Phone Numbers in US Cellular Network (2021-03-23)](https://rewindex.com/company/twilio/incidents/gb104ckvs74s)`


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Canonical: https://rewindex.com/company/twilio/incidents/gb104ckvs74s · Markdown: https://rewindex.com/company/twilio/incidents/gb104ckvs74s.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/gb104ckvs74s · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:39:15.372Z