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: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 390

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-390 A Peoria IL PEORILPJ12Z  616J LEAP TELECOM, LLC 368   2024-11-21   
309-390 0 Peoria IL PEORILPJ12Z  616J LEAP TELECOM, LLC 368   2024-11-21   
309-390 1 Peoria IL PEORILPJ06Z  6265 UNITED STATES CELLULAR - IL 368   2024-11-22   
309-390 2 Peoria IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 368   2025-03-11   
309-390 3 Peoria IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 368   2025-04-29   
309-390 8 Peoria IL PEORILPJ06Z  6265 UNITED STATES CELLULAR - IL 368   2024-11-22   
309-390 9 Peoria IL PEORILPJ06Z  6265 UNITED STATES CELLULAR - IL 368   2024-11-22   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.