NPA	NXX	CLLI	City, ST	Telco
773	261	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	287	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	378	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	379	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	473	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	626	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	854	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS
773	921	CHCGILAUCG0	CHICGOZN05	AMERITECH ILLINOIS