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: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 345

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-345 A Cantrall IL SPFDILESXTX  965H FRACTEL, LLC 374      
447-345 0 Cantrall IL SPFDILESDS3  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2021-07-11   
447-345 1 Cantrall IL SPFDILESDS3  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2023-10-27   
447-345 2 Cantrall IL SPFDILES7MD  224C ONVOY, LLC 374   2021-07-05   
447-345 3 Cantrall IL CHMPILCP11Z  490J BOOST SUBSCRIBERCO L.L.C. 374   2022-08-27   
447-345 4 Cantrall IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2021-06-29   
447-345 5 Cantrall IL SPFDILES7MD  224C ONVOY, LLC 374   2021-04-12   
447-345 6 Cantrall IL SPFDILESXTX  965H FRACTEL, LLC 374   2021-04-11   
447-345 7 Cantrall IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2021-11-13   
447-345 8 Cantrall IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2021-11-13   
447-345 9 Cantrall IL SPFDILESXYX  495J STRATUS NETWORKS 374   2021-12-13   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.