NPA	NXX	CLLI	City, ST	Telco
443	273	CLMAMDNIDS1	REISTERSTN	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443	364	CLMAMDNIDS1	ELLICOTTCY	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443	620	CLMAMDNIDS1	WATERLOO	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443	660	CLMAMDNIDS1	PIKESVILLE	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443	920	CLMAMDNIDS1	SYKESVILLE	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443	942	CLMAMDNIDS1	SEVERNA PK	TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD