Struck in red is what Twilio removed; blue is what they added. Muted text is unchanged context.
BeforeAfter
ChangedStatus#1
Before: identified
After: resolved
AddedResolved time#2
Before: not present
After: 2026-10-29 14:05 UTC
AddedUpdateidentified#3
Before: not present
After: Twilio customers may be experiencing MMS delivery receipt delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.
AddedUpdateidentified#4
Before: not present
After: Twilio customers may be experiencing MMS delivery receipt delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
AddedUpdateidentified#5
Before: not present
After: Twilio customers may be experiencing MMS delivery receipt delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 8 hours or as soon as more information becomes available.
AddedUpdatemonitoring#6
Before: not present
After: We have observed a recovery in MMS delivery receipts from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
AddedUpdateresolved#7
Before: not present
After: The incident has been resolved and MMS delivery receipts from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States are operating normally.
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves these records existed by then and have not been changed since, by anyone, Rewindex included.
Incident updated: MMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United States on Twilio’s status page, changed 2026-10-29 14:13 UTC (change 2 of 2).
Title
Incident updated: MMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United States