NPA
NXX
CLLI
City, ST
Telco
240
265
CHNTVADHDS0
WSNGTNZN15
TIDALWAVE TELEPHONE INC.
240
267
CHNTVADHDS1
WSNGTNZN15
TIDALWAVE TELEPHONE INC.
240
326
HRNDVA13DS0
WSNGTNZN15
CAVALIER TELEPHONE MID-ATLANTIC. LLC - MD
240
339
WASJDCDBDS1
WSNGTNZN15
CAVALIER EAST LLC - MD
240
510
WASHDCCZDS0
WSNGTNZN15
XO MARYLAND LLC
240
525
RSTNVA31DS0
WSNGTNZN15
GLOBAL NAPS SOUTH INC. - MD
240
545
TYCRVA03DS0
WSNGTNZN15
US LEC OF MARYLAND INC.
240
573
WASJDCDCDS0
WSNGTNZN15
GLOBAL CROSSING LOCAL SERVICES INC.-MD
240
892
WASHDCRKDS2
WSNGTNZN15
FOCAL COMMUNICATIONS CORP OF THE MID-ATLANTIC
301
298
WASHDCINDS0
WSNGTNZN15
MCIMETRO ATS INC.
301
358
WASHDCBLDS0
WSNGTNZN15
WINSTAR COMMUNICATIONS LLC - MD
301
494
PRFRMDPFRS1
WSNGTNZN15
VERIZON MARYLAND INC.
301
574
MRBOMDMBDS0
WSNGTNZN15
VERIZON MARYLAND INC.
301
627
MRBOMDMBDS0
WSNGTNZN15
VERIZON MARYLAND INC.
301
715
WASHDCTTDS0
WSNGTNZN15
TELEPORT COMMUNICATIONS GROUP INC. - DC
301
780
MRBOMDMBDS0
WSNGTNZN15
VERIZON MARYLAND INC.
301
812
NRBHMDNEDS0
WSNGTNZN15
VERIZON MARYLAND INC.
301
855
NRBHMDNEDS0
WSNGTNZN15
VERIZON MARYLAND INC.
301
952
MRBOMDMBDS0
WSNGTNZN15
VERIZON MARYLAND INC.