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: 730 [Rate centres in NPA 730] [Dial plan for NPA 730]

NXX: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-200 A Kaskaskia IL STLSMOWQDS2  224C ONVOY, LLC 520      
730-200 0 Kaskaskia IL STLSMOWQ8MD  073H TELNYX LLC 520   2023-10-24   
730-200 2 Kaskaskia IL STLSMOWQDS2  224C ONVOY, LLC 520   2023-10-23   
730-200 7 Kaskaskia IL COVLILCL0MD  516C AT&T CORP. 520   2024-01-24   
730-200 8 Kaskaskia IL STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-04   
730-200 9 Kaskaskia IL STLSMOGZDS5  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2024-05-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.