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: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-287 A Decatur IL SPFDILSDX2X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374      
447-287 0 Decatur IL SPFDILESXWX  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 374   2023-01-18   
447-287 1 Decatur IL SPFDILES7MD  224C ONVOY, LLC 374   2023-09-11   
447-287 5 Decatur IL   490J BOOST SUBSCRIBERCO L.L.C. 374   2025-07-17   
447-287 6 Decatur IL SPFDILSDX2X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2022-08-26   
447-287 7 Decatur IL SPFDILSDX2X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2022-08-26   
447-287 8 Decatur IL SPFDILSDX2X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2022-08-26   
447-287 9 Decatur IL SPFDILES8MD  939H COMMIO, LLC 374   2024-02-02   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.