Third-party coverage maps are not simple to produce.  Other than
required disclosure to the FCC regarding the satisfaction of certain
construction requirements, actual Cellular or PCS RF footprint can be
considered proprietary information.  Wireless license maps, on the
other hand, can be readily produced w/ information that is a matter of
public record.  On that latter count, you might find to your interest
the site that XFF & I have created.

http://www.wirelesswavelength.com/

Specifically, the following license maps hosted by the site are most
relevant to your question.

http://people.ku.edu/~cinema/wireless/cing-attws_800_850.html
http://people.ku.edu/~cinema/wireless/cingular_cel.html
http://people.ku.edu/~cinema/wireless/cingular_pcs.html
http://people.ku.edu/~cinema/wireless/attws_cel.html

As Cellular construction requirements are area-based, deployed
Cellular (800/850 MHz) coverage will closely mimic licensed coverage.
Conversely, as PCS (1900 MHz) construction requirements are
population-based, deployed PCS coverage will typically be confined to
concentrations of permanent or transient population - only a small
percentage of the licensed area.

The Cingular PCS map represents not only PCS licenses held by SBC or
BellSouth but also licenses controlled by Cingular affiliate Salmon
PCS & licenses acquired from NextWave  - many of the latter two of
which are not yet in service.

As for AT&TWS, the AT&TWS PCS map is a task of overwhelming complexity
for me, hence is still yet forthcoming.  However, it can be noted that
anywhere AT&TWS has a Cellular license, it also has an overlying PCS
license.  Though the chronology is actually reversed, anywhere that
AT&TWS has deployed GSM 850 it also has GSM 1900.  The latter, on the
other hand, is not necessarily true.  In markets where AT&TWS controls
the PCS A or PCS B 30 MHz license, it is not a Cellular incumbent,
such that it lacks any 800/850 MHz spectrum.

In the regulatory filing seeking FCC approval of the Cingular-AT&TWS
merger, a combined coverage map was submitted that reflects the
deployed Cellular & PCS footprints of both companies.  Bill Radio has
extracted that map from the filing & mirrored it on his site.

http://www.mountainwireless.com/cingular_att_coverage.htm

Though no distinction is made between 800/850 MHz or 1900 MHz, the
area-based construction of Cellular versus the population-based
construction of PCS is relatively manifest even on the macro scale of
the map.

Lastly, if you have questions about GSM 850, GSM 1900, or GSM 850/1900
deployment by either Cingular or AT&TWS in specific locations, please
just ask.  Above & beyond the maps, my knowledge of what spectrum is
in operation where is fairly comprehensive.

Andrew
--
Andrew Shepherd
cinema@ku.edu
cinema@sprintpcs.com
http://www.wirelesswavelength.com/

Why?

Again - WHY?

--
John S.
e-mail responses to - john at kiana dot net

We have used this guide since his 4th edition.  He is finally expanding to
updating monthly.

http://www.telecompublishing.com/WirelessTravelGuide.shtml

Very good book.  Best $20 you can spend on the printed copy.