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.

Riverdale, IL

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
464-235 A CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 0 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 1 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 2 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 3 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 4 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 5 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 6 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 7 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 8 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
464-235 9 CHCGILIDXHX  839J EON TELECOM, INC. 358   2024-03-02   
708-201 A RVDLILRDDS0  9329 ILLINOIS BELL TEL CO 358      
708-392 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
708-392 0 CHCGILWUKMD  939H COMMIO, LLC 358   2022-11-07   
708-392 1 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
708-392 2 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2003-05-01   
708-392 3   515J IP HORIZON LLC 358   2021-06-26   
708-392 4 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
708-392 5 EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2004-05-29   
708-392 6 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2009-11-03   
708-392 7   6529 T-MOBILE USA, INC. 358   2025-08-11   
708-392 8 CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2006-01-22   
708-392 9 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
708-487 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
708-487 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-29   
708-487 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-06-28   
708-487 2 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2005-02-25   
708-487 3   145J TERRA NOVA TELECOM INC. 358   2022-05-23   
708-487 4 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-08-18   
708-487 5 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-11-11   
708-487 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-29   
708-487 7   6529 T-MOBILE USA, INC. 358   2025-11-12   
708-487 8 CHCGIL24XMD  495J STRATUS NETWORKS 358   2020-09-26   
708-487 9 CHCGILCLXOX  516C AT&T CORP. 358   2007-03-12   
708-768 A CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
708-768 0   145J TERRA NOVA TELECOM INC. 358   2025-11-24   
708-768 1 ELGNILOTGT5  5562 METROPCS, INC. 358   2003-05-12   
708-768 2 ELGNILOTGT5  5562 METROPCS, INC. 358   2003-08-11   
708-768 3   6529 T-MOBILE USA, INC. 358   2003-08-11   
708-768 4   6529 T-MOBILE USA, INC. 358   2003-08-11   
708-768 5 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358      
708-768 6 ELGNILOTGT5  5562 METROPCS, INC. 358   2003-08-11   
708-768 7 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-08-11   
708-768 8 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-08-11   
708-768 9   224C ONVOY, LLC 358   2026-05-31   
708-841 A RVDLILRDDS0  9329 ILLINOIS BELL TEL CO 358      
708-849 A RVDLILRDDS0  9329 ILLINOIS BELL TEL CO 358      
708-880 A OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
708-880 0 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
708-880 1 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2009-04-25   

1 2 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.