NPA	NXX	CLLI	City, ST	Telco
240	243	WASHDCRKDS3	GAITHERSBG	ALLEGIANCE TELECOM INC. - MD
240	246	LNHMMDADDS0	GAITHERSBG	STARPOWER COMMUNICATIONS LLC - MD
240	252	RSTNVA91DS0	GAITHERSBG	LEVEL 3 COMMUNICATIONS LLC - MD
240	306	WASHDCRK4MD	GAITHERSBG	ALLEGIANCE TELECOM INC. - MD
240	327	DMSCMDAGDS0	GAITHERSBG	CORE COMMUNICATIONS INC. - MD
240	361	HRNDVA13DS0	GAITHERSBG	CAVALIER TELEPHONE MID-ATLANTIC. LLC - MD
240	364	WASJDCDBDS1	GAITHERSBG	CAVALIER EAST LLC - MD
240	372	SLSPMDEJCM1	GAITHERSBG	NEXTEL COMMUNICATIONS
240	388	SLSPMDEJCM1	GAITHERSBG	NEXTEL COMMUNICATIONS
240	404	WASHDCCZDS0	GAITHERSBG	XO MARYLAND LLC
240	449	GRNBMDAJCM1	GAITHERSBG	WASHINGTON/BALTIMORE CELLULAR LIMITED PARTNERSHIP
240	454	VINNVAGX1MD	GAITHERSBG	TALKINGNETS HOLDINGS LLC - MD
240	597	RSTNVA31DS0	GAITHERSBG	GLOBAL NAPS SOUTH INC. - MD
240	631	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
240	632	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
240	683	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
240	686	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
240	720	WASJDCDCDS0	GAITHERSBG	GLOBAL CROSSING LOCAL SERVICES INC.-MD
240	751	CHCHMDBE5MD	GAITHERSBG	KMC TELECOM III INC. - MD
240	780	WASHDCRKDS2	GAITHERSBG	FOCAL COMMUNICATIONS CORP OF THE MID-ATLANTIC
240	793	SLSPMDEJCM1	GAITHERSBG	NEXTEL COMMUNICATIONS
240	813	WASHDC091MD	GAITHERSBG	ATX TELECOMMUNICATIONS SERVICES LTD
240	848	WASHDC98DS0	GAITHERSBG	SBC TELECOM INC. - MD
240	912	TYCRVA03DS0	GAITHERSBG	US LEC OF MARYLAND INC.
301	208	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	216	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	250	BLTMMDDNDS0	GAITHERSBG	MCIMETRO ATS INC.
301	252	SLSPMDEJCM1	GAITHERSBG	NEXTEL COMMUNICATIONS
301	330	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	337	RSTNVABHDS3	GAITHERSBG	MCI WORLDCOM COMMUNICATIONS INC. - MD
301	366	WASHDCBLDS0	GAITHERSBG	WINSTAR COMMUNICATIONS LLC - MD
301	370	SLSPMDEJCM1	GAITHERSBG	NEXTEL COMMUNICATIONS
301	407	PLVLMDPVRS0	GAITHERSBG	VERIZON MARYLAND INC.
301	515	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	519	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	527	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	528	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	540	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	556	WASHDCTTDS0	GAITHERSBG	TELEPORT COMMUNICATIONS GROUP INC. - DC
301	569	LARLMDCCDC0	GAITHERSBG	XSPEDIUS MANAGEMENT CO SWITCHES SERVICES LLC - MD
301	591	CHCHMDBE6MD	GAITHERSBG	PAETEC COMMUNICATIONS INC.- MD
301	820	WASHDCSWX2Z	GAITHERSBG	AT&T LOCAL
301	869	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	916	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	926	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	944	WASHDCINDS0	GAITHERSBG	MCIMETRO ATS INC.
301	947	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	956	RKVLMD36DS0	GAITHERSBG	ADVANCED TELCOM GROUP INC. - MD
301	963	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	972	GMTWMDGNDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	977	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	987	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.
301	990	GTBGMDGBDS0	GAITHERSBG	VERIZON MARYLAND INC.