What number format should be used for the Number Information APIs?

The phone number provided to our Number Information APIs should be in the international format following the standard E.164 rules.

These are examples of acceptable phone numbers:

  • 491622943176
  • +491622943176
  • 00491622943176

If a phone number is not in an acceptable format, as shown above, the API will reject it. You will not be charged for this attempt.