# Twilio: Our Engineers are Reporting a Retroactive Issue with SMS Delivery Delays to O2 Network in United Kingdom

> Twilio status incident “Our Engineers are Reporting a Retroactive Issue with SMS Delivery Delays to O2 Network in United Kingdom” on 2021-05-28: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/qxp9tz5m8699
Last updated: 2021-05-28T00:34:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2021-05-28 00:34 UTC · Resolved: 2021-05-28 00:34 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/qxp9tz5m8699](https://status.twilio.com/incidents/qxp9tz5m8699)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-05-28 00:34 UTC: Our engineers are currently investigating the customer impact of a retroactive issue with SMS delivery delays to O2 Network in the United Kingdom. This was degraded for 27 minutes between 16:55 and 17:22 Pacific Time on 05/27/2021. During this period, customers may have experienced SMS delivery delays when sending to O2 Network in the United Kingdom.

_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 2021-05-28 00:34 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/qxp9tz5m8699
- Citation: Twilio, “Our Engineers are Reporting a Retroactive Issue with SMS Delivery Delays to O2 Network in United Kingdom” (2021-05-28 00:34 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/qxp9tz5m8699 (CC BY 4.0).
- Markdown link: `[Twilio: Our Engineers are Reporting a Retroactive Issue with SMS Delivery Delays to O2 Network in United Kingdom (2021-05-28)](https://rewindex.com/company/twilio/incidents/qxp9tz5m8699)`


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Canonical: https://rewindex.com/company/twilio/incidents/qxp9tz5m8699 · Markdown: https://rewindex.com/company/twilio/incidents/qxp9tz5m8699.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/qxp9tz5m8699 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T12:57:39.328Z