A2P 10DLC Campaign Vetting Delays: Twilio cannot approve 10DLC Campaigns ourselves, and must rely on third parties who control our connections to carriers to sign off. These external processes are creating several week delays for our customers. We continue to escalate these issues and are working to reduce delays wherever possible. Further details will be shared in the Campaign Vetting Changes article as they become available.

Developer preview phone number availability

As we expand Twilio’s coverage through partnerships with new service providers, we go through a rigorous performance and reliability testing process of new numbers. Before we make new numbers available to all customers through our Beta program, we work with key customers to help us test new numbers in the real world, with real applications.

We have vetted these numbers and don’t expect you’ll have problems should you choose to try one out, but you should be aware that occasionally this testing phase reveals issues that we cannot detect in our test labs. Please keep this in mind as you deploy these numbers as part of your application. It is not advisable to use these for critical path or production systems until we have more experience with the numbers and are able to put them into Beta. Please also note that on rare occasions some numbers don’t successfully pass the alpha stage and need to be discontinued from service. Should any issues arise, you can expect the same level of support and responsiveness that you’ve come to expect from Twilio.

To request to purchase a number in Developer Preview, click here for Local, National, Mobile and Toll Free Numbers. 

You can view regulatory requirements for phone numbers on this page

Dual Functionality (Voice and SMS enabled) Phone Numbers


Type Domestic only Per Month Per Minute to Receive Calls Per Message Received
Chile N Local

Calls: No

SMS: Yes

$7 $0.0100 $0.01


Voice Enabled Only Phone Numbers


Type Domestic calls only Per Month Per Minute to Receive Calls City Codes Available
Belgium M National No $1  $0.01  
Brazil National Yes  $10  $0.03650  
Costa Rica** H National No $21 $0.0125  
Isle of Man Mobile No $1 $0.0553  
Moldova J Local No $69 $0.1165 Chisinau (22)
South Africa Local No $1.50 $0.0100 (1) Johannesburg
Sri Lanka** D,J Mobile Yes $43 $0.258  
Uruguay K Local Yes $47 $0.50660 Montevideo (2)
Venezuela A,B,D Local  Yes $35 $0.0125 Caracas (212), Valencia (241), Maracay (243), Barquisimeto (251), Maracaibo (261)

  ** These numbers are not kept in stock but can be special ordered with required documentation. Please allow several weeks for delivery after valid documentation is submitted.

SMS Enabled Only Phone Numbers


Type Domestic SMS only Per Month Per Message Received
Slovakia Mobile No $36 $0.0100

Voice/SMS Restrictions

A. Cambodia Local, Venezuela Local: Limited to 2 concurrent calls.

B. Venezuela Local: May not be used for outbound calls.

C. Pakistan Local: May only be used for conference services. Outbound calls not permitted.

D. Venezuela Local, Sri Lanka Mobile: Callback applications not permitted.

E. Armenia National: Limited to 1 concurrent call.

F. Cambodia Local: DTMF not supported. Numbers not reachable from payphones. Audio quality may be low due to local limitations.

G. Armenia National, Cambodia Local, Costa Rica National, Sri Lanka Mobile: May not be used for calling card applications.

H. Moldova Local: CallerID/SenderID not supported

I. Uruguay Local: Limited to 10 concurrent calls.

J. Bangladesh Local: Banglalink network does not support concatenated messages. No network supports the € sign. 

K. Belgium National, Belgium Toll-Free: Inbound-only, outbound calls will not terminate in the country. 

L. Chile Local Voice+SMS: Emoji not supported. UCS2 alphanumeric symbols only. Concatenation with the Telefonica network fails.

Toll Free Voice Enabled Phone Numbers

These numbers are designed to be used for inbound voice calls and are domestically reachable only. Please see this page for restrictions, limitations, and local dialing codes. All Toll-Free numbers in Developer Preview require an address on file within your Twilio project, as well as a documented use case. Please note that, per Twilio's Terms of Service, unused numbers are subject to reclamation.


Prefix Per Month Per Minute to Receive Calls from Landlines Per Minute to Receive Calls from Mobiles
Belgium M +32 800  $25 $0.30830 $0.30830
Chile** +56 123 $275 $0.2347 $0.2347
Costa Rica** +506 800 $25 $0.3795 $0.3795
Dominican Republic +1 800 $159 $0.33000 $0.02000
Ecuador** +593 1800 $285 $0.4935 $0.4895
Egypt** +20 800 $50 $0.4326 N/A
Italy +39 800 $25 $0.394 $0.4394
Jordan** +962 800 $25 $0.296 N/A
Panama +507800 $45 $0.3986  N/A
Paraguay** +595 9800 $25 $0.3372 N/A
Peru +51800 $135 $0.3986 $0.3986
Qatar** +974 800 $710 $0.364 $0.364
Singapore +65 800 $25 $0.0661 $0.0661
Sri Lanka** +94 $145 $0.3588 $0.3588
Uruguay +598 4 $25 $0.1200 $0.1200

 ** These numbers are not kept in stock but can be special ordered with required documentation. Please allow several weeks for delivery after valid documentation is submitted.


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