Please note that even though a carrier is supported, short code messaging capabilities may not be enabled for all end users' plans.
Twilio's US short codes can deliver SMS messages to the following mobile phone carriers in the United States:
Major carriers: AT&T, Verizon Wireless, Sprint, and T-Mobile USA.
Minor carriers: Aio Wireless, Alaska Communications Systems (ACS), Appalachian Wireless (EKN), Bluegrass Cellular, Boost Mobile, Carolina West Wireless, CellCom, Cellular One of East Central IL (ECIT), Cellular One of Northeast Arizona, Cellular One of Northeast Pennsylvania, Chariton Valley Cellular, Cricket, Coral Wireless (Mobi PCS), Cross, C-Spire (CellSouth), Duet IP (Maximum Communications New Core Wireless), Element Mobile (Flat Wireless), Epic Touch (Elkhart Telephone), GCI, Golden State, Google Voice, Hawkeye (Chat Mobility), Hawkeye (NW Missouri), Illinois Valley Cellular, Inland Cellular, iWireless (Iowa Wireless), Keystone Wireless (Immix Wireless/PC Man), Metro PCS, Mosaic (Consolidated or CTC Telecom), MTA Communications, MTPCS (Cellular One Nation), Nex-Tech Wireless, Panhandle Communications, Peoples Wireless, Pine Cellular, Pioneer, RINA, Sagebrush Cellular (Nemont), SI Wireless/Mobile Nation, Simmetry (TMP Corporation), SouthernLinc, SRT Wireless, Thumb Cellular, Union Wireless, United Wireless, U.S. Cellular, Viaero Wireless, Virgin Mobile, and West Central (WCC or 5 Star Wireless).
MMS-enabled US short codes are able to deliver MMS messages to the following mobile phone carriers: AT&T, Verizon Wireless, Sprint, and T-Mobile.
Puerto Rico: Local Puerto Rico carriers Claro and PR Wireless are not reachable using short codes. Puerto Rico users on AT&T, T-Mobile or Sprint may receive short code SMS from a US short code, however delivery is not guaranteed. Short code SMS to Verizon is not supported in Puerto Rico.
Deprecated carriers: The following carriers have recently been deprecated industry-wide. Nextel was purchased by Sprint in 2008 and the Nextel services were deprecated in 2013. Nextel customers are now Sprint or Boost customers. The remaining parts of Alltel (Allied Wireless) were purchased by AT&T in 2013 and were brought completely under the AT&T brand in 2015. Cincinnati Bell Wireless ceased offering short code provisioning in February 2015 and all short codes that were previously live on CBW have been deprovisioned on that carrier.
Twilio's UK short codes can deliver SMS messages to the following mobile phone carriers in the United Kingdom: Vodafone, O2, T-Mobile, Orange, Virgin Mobile, Three, Everything Everywhere, C&W Guernsey, and Manx Telecom.
Twilio's Canadian short codes can deliver SMS messages to the following mobile phone carriers in Canada: Bell (including NorthernTel, Solo Mobile, and Telebec), Fido, MTS, Rogers, SaskTel, Telus (including Koodo Mobile and Public Mobile), Videotron, Virgin Mobile, and Wind.
If you have questions about a specific carrier not on this list, please contact us for more information.