NPA
NXX
CLLI
City, ST
Telco
240
208
RSTNVA31DS0
LA PLATA
GLOBAL NAPS SOUTH INC. - MD
240
349
WASJDCDCDS0
LA PLATA
GLOBAL CROSSING LOCAL SERVICES INC.-MD
240
352
RSTNVA31DS0
LA PLATA
GLOBAL NAPS SOUTH INC. - MD
240
523
WASHDCCZDS0
LA PLATA
XO MARYLAND LLC
240
776
WASHDCRKDS2
LA PLATA
FOCAL COMMUNICATIONS CORP OF THE MID-ATLANTIC
301
392
LPLTMDLADS0
LA PLATA
VERIZON MARYLAND INC.
301
539
WASHDCTTDS0
LA PLATA
TELEPORT COMMUNICATIONS GROUP INC. - DC
301
934
LPLTMDLADS0
LA PLATA
VERIZON MARYLAND INC.
660
332
LPLTMOXADS0
LA PLATA
SPECTRA COMMUNICATIONS GROUP LLC