You can check if a number is using Twilio via a special number: https://www.twil... | Hacker News

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		tomasreimers on Oct 1, 2024 \| parent \| context \| favorite \| on: Ask HN: Should you reply STOP to unwanted texts? You can check if a number is using Twilio via a special number: https://www.twilio.com/en-us/blog/lookup-phone-carrier-recor....

blackeyeblitzar on Oct 1, 2024 [–]

Or a site like https://www.freecarrierlookup.com/ which works for every number

yakovsi on Oct 1, 2024 | [–]

Twilio has a concept of "hosting a number", meaning, the original carrier retains the number, only SMS is handled by Twilio. So parent's link will be more accurate for this application.

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