NPA	NXX	CLLI	City, ST	Telco
410	412	BLTMMDDNDS0	GLENBURNIE	MCIMETRO ATS INC.
410	424	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	487	BLTOMDKHDS0	GLENBURNIE	MCI WORLDCOM COMMUNICATIONS INC. - MD
410	508	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	553	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	582	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	590	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	595	LARLMDCC1MD	GLENBURNIE	XSPEDIUS MANAGEMENT CO SWITCHES SERVICES LLC - MD
410	684	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	689	BLTMMDFMDS0	GLENBURNIE	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
410	691	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	694	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	760	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	761	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	762	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	765	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	766	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	768	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	787	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	826	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	850	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	855	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	859	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	863	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	865	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	892	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	981	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
410	993	FPATMDFRDS0	GLENBURNIE	VERIZON MARYLAND INC.
443	201	WDLWMDBPCM0	GLENBURNIE	NETWORK SERVICES LLC (TSR)
443	270	BLTMMDCHW29	GLENBURNIE	PAETEC COMMUNICATIONS INC.- MD
443	354	BLTMMDSNDS1	GLENBURNIE	LEVEL 3 COMMUNICATIONS LLC - MD
443	517	BLTOMDXIDS0	GLENBURNIE	GLOBAL CROSSING LOCAL SERVICES INC.-MD
443	557	BLTMMDCDDS0	GLENBURNIE	ALLEGIANCE TELECOM INC. - MD
443	572	GLBRMDGLDS0	GLENBURNIE	VERIZON MARYLAND INC.
443	577	CLMAMDJTDS0	GLENBURNIE	US LEC OF MARYLAND INC.
443	618	WDLWMDEMCM2	GLENBURNIE	CELLCO PARTNERSHIP DBA VERIZON WIRELESS-MD
443	623	HNVAMDBIW01	GLENBURNIE	NEXTEL COMMUNICATIONS
443	628	BLTMMDDN4MD	GLENBURNIE	GLOBAL NAPS SOUTH INC. - MD
443	749	HNVAMDBHRS0	GLENBURNIE	CAVALIER TELEPHONE MID-ATLANTIC. LLC - MD
443	763	BLTMMDAFDS0	GLENBURNIE	WINSTAR COMMUNICATIONS LLC - MD
443	790	HNVAMDBIW01	GLENBURNIE	NEXTEL COMMUNICATIONS
443	848	HNVAMDATDS0	GLENBURNIE	SBC TELECOM INC. - MD
443	867	BLTMMDSNDS2	GLENBURNIE	ADELPHIA BUSINESS SOLUTIONS OF MARYLAND LLC
443	883	BLTMMDCHDS7	GLENBURNIE	AT&T LOCAL
443	889	BLTMMDCHXWY	GLENBURNIE	OMNIPOINT COMMUNICATIONS CAP OPERATIONS LLC
443	891	BLTMMDSN5MD	GLENBURNIE	XO MARYLAND LLC
443	989	BLTMMDSNDS0	GLENBURNIE	CAVALIER EAST LLC - MD