# Twilio: SMS Delivery Delays and Failures to China Unicom in China

> Twilio status incident “SMS Delivery Delays and Failures to China Unicom in China” on 2025-12-04: impact minor (vendor’s label), 1.4 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4
Last updated: 2025-12-05T00:21:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-12-04 22:54 UTC · Resolved: 2025-12-05 00:21 UTC · Duration: 1.4 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/qt6p4yvxl2d4](https://status.twilio.com/incidents/qt6p4yvxl2d4)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2025-12-05 00:21 UTC: China SMS is a Twilio Best Effort destination. We will continue investigation, however resolve the status post per the information in the following post: https://www.twilio.com/en-us/guidelines/cn/sms

_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 2025-12-04 22:54 UTC, resolved after 1.4 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4
- Citation: Twilio, “SMS Delivery Delays and Failures to China Unicom in China” (2025-12-04 22:54 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4 (CC BY 4.0).
- Markdown link: `[Twilio: SMS Delivery Delays and Failures to China Unicom in China (2025-12-04)](https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4)`


---
Canonical: https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4 · Markdown: https://rewindex.com/company/twilio/incidents/qt6p4yvxl2d4.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/qt6p4yvxl2d4 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:56:59.593Z