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: 630 [Rate centres in NPA 630] [Dial plan for NPA 630]

NXX: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-636 A Oswego IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
630-636 0 Oswego IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2008-07-10   
630-636 1 Oswego IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2008-08-21   
630-636 2 Oswego IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-06-04   
630-636 3 Oswego IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-06-04   
630-636 4 Oswego IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-07   
630-636 5 Oswego IL OSWGILOSDS0  9329 ILLINOIS BELL TEL CO 358   2006-09-12   
630-636 6 Oswego IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2002-07-09   
630-636 7 Oswego IL CHCGILCLXOX  516C AT&T CORP. 358   2007-02-22   
630-636 8 Oswego IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2008-08-21   
630-636 9 Oswego IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-02-04   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.