NPA
NXX
CLLI
City, ST
Telco
240
223
WASHDCRKDS3
WSHNGTNZN2
ALLEGIANCE TELECOM INC. - MD
240
243
WASHDCRKDS3
GAITHERSBG
ALLEGIANCE TELECOM INC. - MD
240
247
WASHDCRKDS3
WSHNGTNZN3
ALLEGIANCE TELECOM INC. - MD
240
260
WASHDCRKDS3
WSHNGTNZN4
ALLEGIANCE TELECOM INC. - MD
240
268
WASHDCRKDS3
WSNGTNZN10
ALLEGIANCE TELECOM INC. - MD
240
290
WASHDCRKDS3
WSNGTNZN11
ALLEGIANCE TELECOM INC. - MD
240
306
WASHDCRK4MD
GAITHERSBG
ALLEGIANCE TELECOM INC. - MD
240
548
WASHDCRKDS3
WSNGTNZN14
ALLEGIANCE TELECOM INC. - MD
240
553
WASHDCRKDS3
WSNGTNZN13
ALLEGIANCE TELECOM INC. - MD
240
554
WASHDCRKDS3
LAUREL
ALLEGIANCE TELECOM INC. - MD
240
559
WASHDCRKDS3
ASHTON
ALLEGIANCE TELECOM INC. - MD
240
841
BLTMMDCDDS0
LAUREL
ALLEGIANCE TELECOM INC. - MD
240
842
BLTMMDCDDS0
WSNGTNZN14
ALLEGIANCE TELECOM INC. - MD
240
843
BLTMMDCDDS0
WSNGTNZN13
ALLEGIANCE TELECOM INC. - MD
443
200
BLTMMDCDDS0
WOODLAWN
ALLEGIANCE TELECOM INC. - MD
443
276
BLTMMDCDDS0
COLUMBIA
ALLEGIANCE TELECOM INC. - MD
443
279
BLTMMDCDDS0
TOWSON
ALLEGIANCE TELECOM INC. - MD
443
281
BLTMMDCDDS0
COCKEYSVL
ALLEGIANCE TELECOM INC. - MD
443
288
BLTMMDCDDS0
ELLICOTTCY
ALLEGIANCE TELECOM INC. - MD
443
308
BLTMMDCDDS0
SEVERN
ALLEGIANCE TELECOM INC. - MD
443
407
BLTMMDCDDS0
DUNDALK
ALLEGIANCE TELECOM INC. - MD
443
458
BLTMMDCDDS0
ANNAPOLIS
ALLEGIANCE TELECOM INC. - MD
443
460
BLTMMDCDDS0
ESSEX
ALLEGIANCE TELECOM INC. - MD
443
498
BLTMMDCDDS0
CATONSVL
ALLEGIANCE TELECOM INC. - MD
443
524
BLTMMDCDDS0
BALTIMORE
ALLEGIANCE TELECOM INC. - MD
443
548
BLTMMDCDDS0
PIKESVILLE
ALLEGIANCE TELECOM INC. - MD
443
557
BLTMMDCDDS0
GLENBURNIE
ALLEGIANCE TELECOM INC. - MD
443
568
BLTMMDCDDS0
ARBUTUS
ALLEGIANCE TELECOM INC. - MD
443
576
BLTMMDCDDS0
RANDALLSTN
ALLEGIANCE TELECOM INC. - MD
443
588
BLTMMDCDDS0
PARKVILLE
ALLEGIANCE TELECOM INC. - MD
443
650
BLTMMDCDDS0
REISTERSTN
ALLEGIANCE TELECOM INC. - MD
443
692
BLTMMDCDDS1
BALTIMORE
ALLEGIANCE TELECOM INC. - MD
443
753
WASHDCRKDS3
WATERLOO
ALLEGIANCE TELECOM INC. - MD
443
773
BLTMMDCDDS0
BRYNPKLNCM
ALLEGIANCE TELECOM INC. - MD
443
816
BLTMMDCDDS0
SEVERNA PK
ALLEGIANCE TELECOM INC. - MD
443
817
BLTMMDCDDS0
ARGRGBSNIS
ALLEGIANCE TELECOM INC. - MD