NPA
NXX
CLLI
City, ST
Telco
571
934
WASJDCDBDS1
DULLES
CAVALIER EAST LLC - VA
703
544
WASHDCCZDS0
DULLES
XO VIRGINIA LLC
703
574
WASHDCINDS0
DULLES
MCIMETRO ATS INC.
703
651
ARTNVAAR8MD
DULLES
FOCAL COMMUNICATIONS CORP OF VIRGINIA
703
661
DLLSVAXARS0
DULLES
VERIZON SOUTH INC.-VA (CONTEL)
703
662
WASHDCTTDS0
DULLES
TELEPORT COMMUNICATIONS GROUP INC. - DC
703
665
RSTNVA91DS0
DULLES
LEVEL 3 COMMUNICATIONS LLC - VA
703
996
DLLSVAXARS0
DULLES
VERIZON SOUTH INC.-VA (CONTEL)