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: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-489 A Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634      
309-489 0 Geneseo IL GENSILXD2MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2010-04-15   
309-489 1 Geneseo IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 634   2024-01-15   
309-489 3 Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634   2020-04-27   
309-489 4 Geneseo IL GENSILXD2MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2006-03-10   
309-489 5 Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634   2019-10-16   
309-489 6 Geneseo IL   6529 T-MOBILE USA, INC. 634   2003-12-06   
309-489 7 Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634   2019-03-19   
309-489 8 Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634   2019-03-19   
309-489 9 Geneseo IL GENSILXD3MD  6529 T-MOBILE USA, INC. 634   2009-08-30   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.