Why is my Android messenger adding a 1 to the contact number I am trying to message?

[AC Question]

android messaging always adds a 1 to number

i use my contact info to send a sms message. but, when i hit send, a 1 prefix is always added which creates and invalid number and i get an error message back

 

[cj2566]

Re: android messaging always adds a 1 to number

i use my contact info to send a sms message. but, when i hit send, a 1 prefix is always added which creates and invalid number and i get an error message back

Which device? My M8 doesn't do this.