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
  • [EMPTY] =>

These statuses are more common when the caller is calling from a VoIP service.