Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

NXX: 632

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-632 A Chicago Zone 01-Canal IL CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 0 Chicago Zone 01-Canal IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-09-25   
312-632 1 Chicago Zone 01-Canal IL CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 2 Chicago Zone 01-Canal IL CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 3 Chicago Zone 01-Canal IL CHCGILMF4MD  5562 METROPCS, INC. 358   2016-12-29   
312-632 4 Chicago Zone 01-Canal IL CHCGILMF4MD  5562 METROPCS, INC. 358   2016-12-29   
312-632 5 Chicago Zone 01-Canal IL CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2016-12-27   
312-632 6 Chicago Zone 01-Canal IL CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2016-12-27   
312-632 7 Chicago Zone 01-Canal IL CHCGILMF4MD  5562 METROPCS, INC. 358   2016-12-29   
312-632 8 Chicago Zone 01-Canal IL CHCGILMF4MD  5562 METROPCS, INC. 358   2016-12-29   
312-632 9 Chicago Zone 01-Canal IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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