SendGrid: SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil
Affected components: CARRIER NETWORK - SMS, Latin AmericaSMS, Latin America
Timeline of updates
- investigating
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- identified
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
- identified
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
- identified
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. 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.
- monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
- resolved
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes and Long Codes to Claro network subscribers in Brazil is operating normally.
Changes Rewindex caught on this incident
- Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil
- Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil
- Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil
- Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil
- Incident updated: SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil
Archive proof
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.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-23 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
d4ffcd2bcbef4e2b…Version 2 captured
In the 2026-10-23 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
780490b9da090b5d…Version 3 captured
In the 2026-10-23 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
9fbd558728d7de0d…
Rewindex captured a newer version after the last checkpoint; the next run () commits it.
Impact, status and times are the vendor’s own, as last archived. View on status.sendgrid.com (opens in new tab).