NPANXXCLLICity, STTelco
202 464 WASHDCRKDS3 WSHNGTNZN1 ALLEGIANCE TELECOM OF THE DISTRICT OF COLUMNBIA
240 223 WASHDCRKDS3 WSHNGTNZN2 ALLEGIANCE TELECOM INC. - MD
240 243 WASHDCRKDS3 GAITHERSBG ALLEGIANCE TELECOM INC. - MD
240 247 WASHDCRKDS3 WSHNGTNZN3 ALLEGIANCE TELECOM INC. - MD
240 260 WASHDCRKDS3 WSHNGTNZN4 ALLEGIANCE TELECOM INC. - MD
240 268 WASHDCRKDS3 WSNGTNZN10 ALLEGIANCE TELECOM INC. - MD
240 290 WASHDCRKDS3 WSNGTNZN11 ALLEGIANCE TELECOM INC. - MD
240 548 WASHDCRKDS3 WSNGTNZN14 ALLEGIANCE TELECOM INC. - MD
240 553 WASHDCRKDS3 WSNGTNZN13 ALLEGIANCE TELECOM INC. - MD
240 554 WASHDCRKDS3 LAUREL ALLEGIANCE TELECOM INC. - MD
240 559 WASHDCRKDS3 ASHTON ALLEGIANCE TELECOM INC. - MD
443 753 WASHDCRKDS3 WATERLOO ALLEGIANCE TELECOM INC. - MD