There are services that can do this (Skype, for example) but on closer inspection, looks like it's not allowed in some territories (including the US). https://

There are services that can do this (Skype, for example) but on closer inspection, looks like it's not allowed in some territories (including the US). https://support.skype.com/en/faq/FA672/how-do-i-show-my-mobile-number-when-sending-sms-text-messages-from-skype https://support.skype.com/en/faq/FA672/how-do-i-show-my-mobi... http://en.wikipedia.org/wiki/SMS_spoofing http://en.wikipedia.org/wiki/SMS_spoofing