NPA
NXX
CLLI
City, ST
Telco
410
229
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
316
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
329
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
403
BLTMMDDNDS0
COCKEYSVL
MCIMETRO ATS INC.
410
498
BLTMMDFMDS0
COCKEYSVL
COMCAST TELEPHONY COMMUNICATIONS OF MARYLAND INC.
410
527
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
568
BLTMMDFMDS0
COCKEYSVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
584
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
628
CYVLMDCKDS0
COCKEYSVL
VERIZON MARYLAND INC.
410
666
CYVLMDCKDS0
COCKEYSVL
VERIZON MARYLAND INC.
410
667
CYVLMDCKDS0
COCKEYSVL
VERIZON MARYLAND INC.
410
683
CYVLMDCKDS0
COCKEYSVL
VERIZON MARYLAND INC.
410
771
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
773
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
785
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
410
891
BLTOMDKHDS0
COCKEYSVL
MCI WORLDCOM COMMUNICATIONS INC. - MD
443
281
BLTMMDCDDS0
COCKEYSVL
ALLEGIANCE TELECOM INC. - MD
443
318
BLARMDBL1MD
COCKEYSVL
CAVALIER TELEPHONE LLC (MID-ATLANTIC) - MD
443
330
BLTMMDAFDS0
COCKEYSVL
WINSTAR COMMUNICATIONS LLC - MD
443
391
BLTOMDXIDS0
COCKEYSVL
GLOBAL CROSSING LOCAL SERVICES INC.-MD
443
428
BLTMMD91DS0
COCKEYSVL
CORE COMMUNICATIONS INC. - MD
443
541
BLTMMDCHW29
COCKEYSVL
PAETEC COMMUNICATIONS INC.- MD
443
556
CYVLMDDADS0
COCKEYSVL
VERIZON MARYLAND INC.
443
578
BLTMMDSNDS5
COCKEYSVL
XO MARYLAND LLC
443
589
CLMAMDJTDS0
COCKEYSVL
US LEC OF MARYLAND INC.
443
591
HNVAMDATDS0
COCKEYSVL
SBC TELECOM INC. - MD
443
689
BLTMMDSNDS0
COCKEYSVL
CAVALIER EAST LLC - MD
443
705
BLTMMDDN4MD
COCKEYSVL
GLOBAL NAPS SOUTH INC. - MD
443
886
BLTMMDCHDS7
COCKEYSVL
AT&T LOCAL
443
971
LNHGMDAVDS0
COCKEYSVL
BROADSTREET COMMUNICATIONS INC. - MD