Tomorrow, the two largest mobile phone providers in the United States, AT&T and Verizon, will be shutting down their analog AMPS mobile network. This will free spectrum for newer digital standards, such as GSM/UMTS and CDMA. In addition, AT&T will also be shutting down their first digital network, D-AMPS, or TDMA. AT&T has actually already shut down all of their TDMA network on the 1900 MHz band, and will do the same tomorrow for the TDMA network on the 850 MHz band. The only exception to this is the network that AT&T has acquired from Dobson/Cellular One. The Dobson TDMA and AMPS networks will be shut down on March 1 to help integrate users still on a Celluar One TDMA/AMPS plan to migrate to AT&T's GSM network.
Well, it is the end of an era here. The analog TACS (European version of AMPS) standard used in most of mainland Europe has been shut down a while ago. In the Nordic Countries, there is still some remaining coverage of the analog NMT network.
[Edited 2008-02-17 16:01:06]