Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-661 A Chicago Zone 04-Humboldt IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-661 0 Chicago Zone 04-Humboldt IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-661 1 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-01-13   
773-661 2 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-01-13   
773-661 3 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-10   
773-661 4 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-10   
773-661 5 Chicago Zone 04-Humboldt IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-661 6 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-09-07   
773-661 7 Chicago Zone 04-Humboldt IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2018-05-29   
773-661 8 Chicago Zone 04-Humboldt IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2019-02-11   
773-661 9 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-01-13   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.