NPA
NXX
CLLI
City, ST
Telco
240
244
LNHMMDADDS0
WSNGTNZN16
STARPOWER COMMUNICATIONS LLC - MD
240
269
RSTNVA31DS0
WSNGTNZN16
GLOBAL NAPS SOUTH INC. - MD
240
303
HRNDVA13DS0
WSNGTNZN16
CAVALIER TELEPHONE MID-ATLANTIC. LLC - MD
240
318
CLTNMDCLDS0
WSNGTNZN16
VERIZON MARYLAND INC.
240
348
WASHDC46CA1
WSNGTNZN16
SPRINT COMMUNICATIONS COMPANY L.P. - MD
240
407
WASJDCDCDS0
WSNGTNZN16
GLOBAL CROSSING LOCAL SERVICES INC.-MD
240
546
TYCRVA03DS0
WSNGTNZN16
US LEC OF MARYLAND INC.
240
846
WASHDCCZDS0
WSNGTNZN16
XO MARYLAND LLC
240
897
WASHDCRKDS2
WSNGTNZN16
FOCAL COMMUNICATIONS CORP OF THE MID-ATLANTIC
240
949
WASJDCDBDS1
WSNGTNZN16
CAVALIER EAST LLC - MD
301
234
ALTWMDATDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
235
WASHDCINDS0
WSNGTNZN16
MCIMETRO ATS INC.
301
238
TMHLMDTHDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
297
ALTWMDATDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
363
WASHDCBLDS0
WSNGTNZN16
WINSTAR COMMUNICATIONS LLC - MD
301
372
BRNDMDBERS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
719
WASHDCTTDS0
WSNGTNZN16
TELEPORT COMMUNICATIONS GROUP INC. - DC
301
856
CLTNMDCLDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
868
CLTNMDCLDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
877
CLTNMDCLDS0
WSNGTNZN16
VERIZON MARYLAND INC.
301
888
BADNMDBNRS0
WSNGTNZN16
VERIZON MARYLAND INC.