Are there areas in which Twilio is not able to provide service?
We try to offer a broad selection of phone numbers in a variety of regions and area codes in areas where we sell geographic numbers. However, phone numbers from certain areas may be extremely rare or depleted, and some types of phone numbers cannot be purchased for other reasons.
In the US, we are able to provide service in almost all area codes. However, there are some area codes which we cannot purchase such as 907 (Alaska), 808 (Hawaii), a few rural areas in 515, 319, 641 (Iowa) and 603 (New Hampshire). There are also depleted area codes in major metropolitan areas, such as 602 (Phoenix) 212 (New York) and 310 (Los Angeles) however we offer alternative overlay area codes in these areas.
Canada also has depleted area codes such as 416 (Toronto), 905 (Ontario), 403 (Calgary).
For availability outside the US and Canada please consult our FAQ on the capabilities of Twilio’s global numbers.