NPA	NXX	CLLI	City, ST	Telco
773	284	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	581	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	582	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	585	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	735	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	767	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	838	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS
773	884	CHCGILPMDS0	CHICGOZN08	AMERITECH ILLINOIS