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Phone Number Validation

Validates a phone number and returns it in standardized format.

Module
Tools
where it lives

What it does

Validates a phone number and returns it in standardized format

Accepts a phone number in any common format and returns whether it is valid along with its E.164 and national format representations. Catches wrong length, invalid prefix, and unsupported region issues before bad numbers make it into a record. Fast enough to run on form submission and free to call.

When you’d reach for it

  • Rejecting an invalid phone number at the point of entry in a customer intake form.
  • Standardizing phone number formats across an imported contact list.
  • Confirming a number is reachable before triggering an outbound call or message.