This article is intended to explain which Twilio phone numbers are eligible for WhatsApp's enablement process. Please read on for full details.
Supported Twilio Phone Number Types
The following Twilio phone number types are supported for WhatsApp:
Notice: Only US-based toll free phone numbers are capable of WhatsApp messaging at this time. Toll-free phone numbers from other countries are not supported.
When you submit your request to enable a Twilio number for WhatsApp, the Twilio API for WhatsApp onboarding team will confirm for you whether the number you have submitted can be enabled.
Twilio Hosted SMS numbers are supported for WhatsApp messaging, so long as they are not non-US toll-free phone numbers.
Do Phone Numbers need to be SMS Capable?
Twilio phone numbers do not need to be SMS-capable to use WhatsApp messaging.
Are Alphanumeric Sender IDs supported by WhatsApp?
No, WhatsApp does not support Alphanumeric Sender IDs.