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: 530

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-530 A Chicago Zone 09-South Chicago IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-530 0 Chicago Zone 09-South Chicago IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-530 1 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-530 2 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-530 3 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-530 4 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-530 5 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-530 6 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-530 7 Chicago Zone 09-South Chicago IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-530 8 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-530 9 Chicago Zone 09-South Chicago IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.