Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CHCGILFRDS3

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-609 0 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 1 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 2 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 3 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 4 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 5 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 6 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 7 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-609 8 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-621 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-658 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 0 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 1 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 5 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 6 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 7 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 8 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-701 9 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-726 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-739 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-750 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-781 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-807 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-827 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-845 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-846 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-846 2 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-917 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-920 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 0 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 1 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 2 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 3 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 5 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 6 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 7 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-960 8 Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      
312-977 A Chicago Zone 01-Franklin IL 9329 ILLINOIS BELL TEL CO 358      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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