List of text message extensions? i.e. verizon = vtext.com ; ATT = ? ; T-Mobile = ? ; Alltel = ?

Question

I need a list of all available extensions for a number of providers.
Verizon =[e-mail]
Sprint = [e-mail]

So what are these?
T-Mobile =
AT&T =
Alltel =
US Cellular =
Cricket =
Boost =
SunCom =
Cellular ONE =
Edge =
Metro PCS =
Centennial =
Helio =
nTelos =
Qwest =
SouthernLINC =
SureWest =

etc.

Any European or Latin American providers would be appreciated too.

Thanks

Answer 1

http://en.wikipedia.org/wiki/SMS_gateways (scroll down a bit)



here are a few more i posted up a while ago:

http://www.yjzone.net/showthread.php?t=3098

Answer 2

Att Text Extension

Answer 3

That's a tricky question..

Answer 4

Need more details

Answer 5

att

Answer 6

Cricket's is: "your phone #"@mms.mycricket.com