# SendGrid: Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil

**Summary:** _summary pending_
- Kind: Incident update · Label: Normal progress (typesafe/jev-1.13-20260917)
- Changed: 2026-10-23 21:13 UTC · Detected: 2026-10-23 21:13 UTC
- [Source: https://status.sendgrid.com/incidents/52y5t9kgn4h6](https://status.sendgrid.com/incidents/52y5t9kgn4h6)
- [Company: SendGrid](https://rewindex.com/company/sendgrid.md)
- Versions: before incident\_version:258/52y5t9kgn4h6@e93514fafad2 → after incident\_version:258/52y5t9kgn4h6@593205b98e4f
- Change 1 of 5 for this incident

Incident page (full timeline): [SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil](https://rewindex.com/company/sendgrid/incidents/52y5t9kgn4h6.md)
## What changed

**1. Changed: Title**

```diff
- SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil
+ SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil
```

**2. Added: Update** (identified) · 2026-10-23 21:07 UTC

```diff
+ 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.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-23 21:13 UTC | Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil (this change) | Normal progress |
| 2026-10-23 23:13 UTC | [Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil](https://rewindex.com/change/r47b9b55584568c.md) | Normal progress |
| 2026-10-24 00:33 UTC | [Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil](https://rewindex.com/change/r2d16dc7095f2c2.md) | Normal progress |
| 2026-10-24 02:33 UTC | [Incident updated: SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro Brazil](https://rewindex.com/change/rce3980cf024c6f.md) | Normal progress |
| 2026-10-24 06:03 UTC | [Incident updated: SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil](https://rewindex.com/change/r816f91bc9ea20f.md) | Normal progress |

Next: [change](https://rewindex.com/change/r47b9b55584568c.md) · All SendGrid changes: [timeline](https://rewindex.com/company/sendgrid/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/r675cc06ef1b6c6 · Markdown: https://rewindex.com/change/r675cc06ef1b6c6.md · JSON: https://rewindex.com/api/v1/changes/r675cc06ef1b6c6 · Generated 2026-10-24T12:03:21.535Z