NPA
NXX
CLLI
City, ST
Telco
312
201
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
220
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
230
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
251
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
267
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
357
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
368
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
443
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
444
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
541
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
553
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
556
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
557
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
592
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
603
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
606
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
629
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
630
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
641
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
759
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
797
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
812
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
849
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
855
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
857
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
899
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS
312
984
CHCGILFRDS0
CHICGOZN01
AMERITECH ILLINOIS