NPA
NXX
CLLI
City, ST
Telco
410
423
BLTMMDFMDS0
COLUMBIA
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
427
BLTMMDFMDS0
TOWSON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
510
BLTMMDFMDS0
FORK
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
513
BLTMMDFMDS0
PARKVILLE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
559
BLTMMDFMDS0
PIKESVILLE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
564
BLTMMDFMDS0
ELKRIDGE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
568
BLTMMDFMDS0
COCKEYSVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
649
BLTMMDFMDS0
BALTIMORE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
689
BLTMMDFMDS0
GLENBURNIE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
776
BLTMMDFMDS0
BEL AIR
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
818
BLTMMDFMDS0
CATONSVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
843
BLTMMDFMDS0
BALTIMORE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
951
BLTMMDFMDS0
BALTIMORE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410
972
BLTMMDFMDS0
ANNAPOLIS
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
212
BLTMMDFMDS0
SPARKSGLNC
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
267
BLTMMDFMDS0
DARLINGTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
272
BLTMMDFMDS0
RANDALLSTN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
273
CLMAMDNIDS1
REISTERSTN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
297
BLTMMDFMDS0
ARBUTUS
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
343
BLTMMDFMDS0
MILLERSVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
348
BLTMMDFMDS0
WOODLAWN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
360
BLTMMDFMDS0
ABERDEEN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
364
CLMAMDNIDS1
ELLICOTTCY
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
376
BLTMMDFMDS0
DUNDALK
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
402
BLTMMDFMDS0
EDGEWOOD
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
406
BLTMMDFMDS0
ELKTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
412
BLTMMDFMDS0
CHURCHVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
417
BLTMMDFMDS0
FALLSTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
424
BLTMMDFMDS0
CARDIFF
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
441
BLTMMDFMDS0
GLENWOOD
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
457
BLTMMDFMDS0
BRYNPKLNCM
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
489
BLTMMDFMDS0
CHASE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
502
BLTMMDFMDS0
HAVREGRACE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
507
BLTMMDFMDS0
HAMPSTEAD
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
533
BLTMMDFMDS0
JARRETTSVL
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
620
CLMAMDNIDS1
WATERLOO
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
648
BLTMMDFMDS0
ESSEX
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
660
CLMAMDNIDS1
PIKESVILLE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
671
BLTMMDFMDS0
NEWWINDSOR
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
672
BLTMMDFMDS0
PARKTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
674
BLTMMDFMDS0
NORTH EAST
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
679
BLTMMDFMDS0
SEVERN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
693
BLTMMDFMDS0
PERRYVILLE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
698
BLTMMDFMDS0
ODENTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
731
BLTMMDFMDS0
PT DEPOSIT
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
732
BLTMMDFMDS0
SILVER RUN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
784
BLTMMDFMDS0
ARGRGBSNIS
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
914
BLTMMDFMDS0
WORTHINGTN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
918
BLTMMDFMDS0
TANEYTOWN
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
920
CLMAMDNIDS1
SYKESVILLE
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
937
BLTMMDFMDS0
UNION BDG
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
942
CLMAMDNIDS1
SEVERNA PK
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
943
BLTMMDFMDS0
SPARROWSPT
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
974
BLTMMDFMDS0
WESTMINSTR
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD