NPA	NXX	CLLI	City, ST	Telco
312	228	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	233	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	240	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	297	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	374	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	540	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	552	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	565	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	616	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	653	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	729	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	819	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	856	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	861	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	938	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS
312	946	CHCGILLRDS0	CHICGOZN01	AMERITECH ILLINOIS