NPA
NXX
CLLI
City, ST
Telco
410
305
ODTNMDONDS0
ODENTON
VERIZON MARYLAND INC.
410
672
ODTNMDONDS0
ODENTON
VERIZON MARYLAND INC.
410
674
ODTNMDONDS0
ODENTON
VERIZON MARYLAND INC.
410
695
ODTNMDPORS2
ODENTON
VERIZON MARYLAND INC.
410
874
BLTMMDDNDS0
ODENTON
MCIMETRO ATS INC.
410
927
LARLMDCC1MD
ODENTON
XSPEDIUS MANAGEMENT CO SWITCHES SERVICES LLC - MD
443
230
BLTMMDDN4MD
ODENTON
GLOBAL NAPS SOUTH INC. - MD
443
351
CLMAMDJTDS0
ODENTON
US LEC OF MARYLAND INC.
443
396
BLTOMDXIDS0
ODENTON
GLOBAL CROSSING LOCAL SERVICES INC.-MD
443
698
BLTMMDFMDS0
ODENTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
704
BLTMMDSNDS0
ODENTON
CAVALIER EAST LLC - MD