Instant access to local, national, mobile, and toll-free phone numbers in more than 100 countries with a developer-friendly API.
The experience of going to Zendesk Voice and signing up for a phone number in 40 different countries is pretty incredible.
We are growing between 2,000 to 5,000 phone numbers a month and our previous vendor couldn’t keep up with the volume of numbers.
Port your existing U.S. numbers from the current provider to Twilio through an online application, and we take care of the rest. You can also automate the porting process with the Twilio Porting API. Access developer preview.
If your carrier supports call forwarding over SIP, you can also use the Voice API with existing phone numbers. It’s a relatively inexpensive option for countries where Twilio doesn’t have phone numbers or where porting is not possible. See an example.
Send and receive SMS messages with your existing phone number without changing your voice service. Phone calls continue to work the same way while SMS goes through Twilio, all on the same number. Hosted Numbers FAQ
Voice, SMS, and MMS on the same number
Voice-enabled numbers with a regional identity
Voice and SMS-enabled national numbers
SMS-capable national numbers
Voice-capable standard call-cost national numbers
High-volume SMS and MMS-enabled numbers
Experience a 99.95% uptime SLA made possible with automated failover and zero maintenance windows.
Operate at scale
Extend the same app you write once to new markets with configurable features for localization and compliance.
Use the same platform you know for voice, SMS, video, chat, two-factor authentication, and more.
Get to market faster with pay-as-you-go pricing, free support, and the freedom to scale up or down without contracts.