Local Calling Guide

Area code/prefix search

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

NXX: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-770 A Chicago Zone 04-Humboldt IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-770 0 Chicago Zone 04-Humboldt IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-770 1 Chicago Zone 04-Humboldt IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-770 2 Chicago Zone 04-Humboldt IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-770 3 Chicago Zone 04-Humboldt IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2012-03-12   
773-770 4 Chicago Zone 04-Humboldt IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-22   
773-770 5 Chicago Zone 04-Humboldt IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-01-01   
773-770 6 Chicago Zone 04-Humboldt IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-10   
773-770 7 Chicago Zone 04-Humboldt IL CHCGILLWDS0  9329 ILLINOIS BELL TEL CO 358   2002-02-21   
773-770 8 Chicago Zone 04-Humboldt IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-09-19   
773-770 9 Chicago Zone 04-Humboldt IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2000-10-12   

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

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