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: 380

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-380 A Rock Island IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 634   2024-08-29   
309-380 0 Rock Island IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634      
309-380 9 Rock Island IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 634      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.