NPA
NXX
CLLI
City, ST
Telco
240
207
WASJDCDBDS1
DAMASCUS
CAVALIER EAST LLC - MD
240
234
WASHDCQHCM8
DAMASCUS
ARCH WIRELESS HOLDINGS INC.
240
262
CHNTVADHDS1
DAMASCUS
TIDALWAVE TELEPHONE INC.
240
263
CHNTVADHDS0
DAMASCUS
TIDALWAVE TELEPHONE INC.
240
308
WASHDCDTCM3
DAMASCUS
AT&T WIRELESS SERVICES INC.
240
325
DMSCMDAGDS0
DAMASCUS
CORE COMMUNICATIONS INC. - MD
240
358
RSTNVA31DS0
DAMASCUS
GLOBAL NAPS SOUTH INC. - MD
240
365
LARLMDEH00T
DAMASCUS
BALTIMORE-WASHINGTON TELEPHONE BWT
240
668
LNHMMDADDS0
DAMASCUS
STARPOWER COMMUNICATIONS LLC - MD
240
745
WASHDCCZDS0
DAMASCUS
XO MARYLAND LLC
240
782
WASJDCDCDS0
DAMASCUS
GLOBAL CROSSING LOCAL SERVICES INC.-MD
276
475
DMSCVAXARS0
DAMASCUS
UNITED INTER-MOUNTAIN TELEPHONE
301
253
DMSCMDDEDS0
DAMASCUS
VERIZON MARYLAND INC.
301
269
DMSCMDDEDS0
DAMASCUS
METROCALL
301
368
DMSCMDDEDS0
DAMASCUS
VERIZON MARYLAND INC.
301
391
DMSCMDDEDS0
DAMASCUS
VERIZON MARYLAND INC.
301
414
DMSCMDDEDS0
DAMASCUS
VERIZON MARYLAND INC.
301
482
DMSCMDDEDS0
DAMASCUS
VERIZON MARYLAND INC.
301
607
FRDRMDFRDS0
DAMASCUS
VERIZON MARYLAND INC.
301
685
WASHDCTTDS0
DAMASCUS
TELEPORT COMMUNICATIONS GROUP INC. - DC
301
798
NWMRMDNERS3
DAMASCUS
VERIZON MARYLAND INC.
301
831
MTARMDMARS1
DAMASCUS
VERIZON MARYLAND INC.
330
446
BDTMOHIDAMD
DAMASCUS
SYGNET COMMUNICATIONS
330
537
DMSCOHXARS1
DAMASCUS
UNITED TELEPHONE CO. OF OHIO
501
335
DMSCARXARS0
DAMASCUS
ALLTEL ARKANSAS INC.