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: 213

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-213 A Kell IL STLSMOWQDS2  224C ONVOY, LLC 520      
730-213 0 Kell IL STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-04   
730-213 2 Kell IL STLSMOWQDS2  224C ONVOY, LLC 520   2023-11-12   
730-213 4 Kell IL COVLILCL0MD  516C AT&T CORP. 520   2024-08-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.