Dear North-American friends!
I'd like to test SMS interchange between the Polish network Plus GSM and non-GSM networks (listed below). Plus GSM claims that SMS can be sent from any postpaid or prepaid SIM in its network to any of the networks below,. However, it doesn't guarantee that SMS will go through in the opposite way.
Please PM me your phone numbers, and I'll send you test messages.

List of networks

Canada Bell Wireless Alliance CDMA1900
Canada Bell Wireless Alliance AMPS
Canada Telus AMPS
Canada Telus CDMA1900
USA Alltel AMPS
USA Alltel CDMA
USA Centennial AMPS
USA Cincinnati Bell TDMA1900
USA Dobson CDMA
USA Leap Direct CDMA
USA Triton TDMA
USA US Cellular AMPS
USA US Cellular TDMA
USA US Cellular CDMA
USA US West CDMA1900
USA Verizon Wireless AMPS
USA Verizon Wireless CDMA
USA Verizon Wireless CDMA1900
USA Western Wireless AMPS/TDMA

You can strike everything with "AMPS" from the list. AMPS is analog and does not support SMS.

Yes, I know that AMPS is analog but it wasn't me who created the list :) :
http://www.plusgsm.pl/uslugi/sms_niestanda..._sieci_non_gsm/

BTW, "analog" doesn't necessarily mean "no SMS". AFAIK, NMT in the last years of its existence supported SMS sending and receiving.

AMPS and TDMA are hopefully dying :)
Cingular and T-Mobile done use AMPS
Cingular is not really activating that many new TDMA handsets and is slicing spectrum
Nextel does not have AMPS on their handsets AFAIK

so CDMA is really what you want :D