30451: Toll-Free phone number verification unable to process - address invalid

Twilio is unable to process your Toll Free Verification request because it could not be validated by Twilio and could not be submitted for verification review.

The toll-free phone number cannot be verified because the address is invalid. It could be due to:

• The provided address is not a valid US or Canada address
• Invalid State or Region
• Invalid Country
• Invalid House Number
• Invalid City
• Invalid Postal Code
• Invalid Street
• Invalid Address - multiple issues

Correct the address and resubmit the verification in Console via the Messaging Compliance API.

Forbidden message categories

https://support.twilio.com/hc/en-us/articles/360045004974-Forbidden-message-categories-for-SMS-and-MMS-in-the-US-and-Canada

Toll-Free best practices can be found at

https://support.twilio.com/hc/en-us/articles/360038172934-Information-and-best-practices-for-using-Toll-Free-SMS-and-MMS-in-the-US-and-Canada