Why am I getting calls from these strange numbers?
If you’re getting inbound calls from a strange number that doesn’t look like a real phone number, check to see if it’s one of the numbers below. Sometimes, the originating carrier for a call will pass through one of the following words. Twilio converts this word to digits and uses those digits as the ‘From’ parameter.
- RESTRICTED => 737 874-2833
- BLOCKED => 256-2533
- UNKNOWN => 865-6696
- ANONYMOUS => 266696687
- UNAVAILABLE => 86282452253
- [EMPTY] =>
These statuses are more common when the caller is calling from a VoIP service.