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: 743

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-743 A Springfield IL SPFDILESXXX  516J TON80 COMMUNICATIONS, LLC 374      
447-743 0 Springfield IL SPFDILFAGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 374   2024-08-02   
447-743 1 Springfield IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 374   2025-05-02   
447-743 2 Springfield IL SPFDILESXXX  516J TON80 COMMUNICATIONS, LLC 374   2021-07-31   
447-743 8 Springfield IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 374   2025-05-02   
447-743 9 Springfield IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 374   2025-05-02   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.