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: 252

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-252 A Macomb IL MCMBILXDX3X  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 977      
309-252 0 Macomb IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 977      
309-252 1 Macomb IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 977      
309-252 2 Macomb IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 977      
309-252 4 Macomb IL   224C ONVOY, LLC 977   2021-02-12   
309-252 5 Macomb IL   224C ONVOY, LLC 977   2021-02-12   
309-252 6 Macomb IL   224C ONVOY, LLC 977   2021-02-12   
309-252 7 Macomb IL   224C ONVOY, LLC 977   2022-12-02   
309-252 8 Macomb IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 977      
309-252 9 Macomb IL   224C ONVOY, LLC 977   2024-07-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.