We depend on third party telephone companies to deliver text messages. When sending texts to non US countries and certain US areas, those third party telephone companies charge us significant fees to deliver the message. To maintain our low prices and quality of service, we therefore block these messages from being sent. 

The disallowed area codes include but are not limited to:

• Non-US area codes
• Other US territories: 684, 671, 670, 340
• Puerto Rico: 787, 939
• Alaska 907
• Hawaii 808