Local Calling Guide

Area code/prefix search

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NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX: 741

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-741 A Chicago Zone 11-O'Hare IL DSPLILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-741 0 Chicago Zone 11-O'Hare IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2019-11-17   
773-741 1 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-02-03   
773-741 2 Chicago Zone 11-O'Hare IL   460K FIRST COMMUNICATIONS, LLC 358   2004-07-16   
773-741 4 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-02-03   
773-741 8 Chicago Zone 11-O'Hare IL   9329 ILLINOIS BELL TEL CO 358      
773-741 9 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-02-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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