- Level
- confirmed
- Worst impact
- Degraded
- Components
- SMS, Latin America
Summary
Twilio says customers may be experiencing SMS delivery receipt failures for messages sent to Claro network subscribers in Costa Rica. Message delivery may succeed while receipts fail. The provider has identified the cause and is working to resolve the issue; the incident remains in the identified state.
Written by anthropic/claude-haiku-5.5 from Twilio's own updates.
What to do
Check whether you use Twilio SMS, Latin America. Check your stack
Drop a package.json, lockfile, Terraform or a list of domains at down.guide to see every provider you depend on.Switch to another region or a fallback provider while it is open, if you have one.
Otherwise back off retries and queue work, so you don't add load while it recovers.Watch Twilio's own updates; this page re-reads them every minute.
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https://down.guide/feed?provider=twilio works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Twilio 11
- investigating
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 1 hour or as soon as more information becomes available.
provider
- investigating
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 2 hours or as soon as more information becomes available.
provider
- investigating
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 4 hours or as soon as more information becomes available.
provider
- investigating
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 8 hours or as soon as more information becomes available.
provider
- investigating
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 16 hours or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 1 hour or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 2 hours or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 4 hours or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 8 hours or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 16 hours or as soon as more information becomes available.
provider
- identified
Twilio customers may be experiencing SMS delivery receipt failures from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be failing. We will provide another update in 24 hours or as soon as more information becomes available.
provider
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Corrections
None so far.
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Questions about DWN-c155eff65b
Is Twilio down right now?
Twilio reports degraded (SMS Delivery Receipt Failures from Twilio to Claro Costa Rica), open since 2026-11-12 22:31 UTC. Live state for every component: https://down.guide/providers/twilio.
What was affected?
Twilio named SMS, Latin America.
What caused it?
Twilio hasn't published a root cause. If it does, it shows here.
Where does this come from?
Twilio's official status page, https://status.twilio.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.