Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 568

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-568 A Andover IL DVNPIADTXQX  224C ONVOY, LLC 634      
309-568 1 Andover IL RCISILRIXMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 634   2020-04-13   
309-568 2 Andover IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2010-04-15   
309-568 3 Andover IL DVNPIADTXQX  224C ONVOY, LLC 634   2012-04-05   
309-568 5 Andover IL DVNPIADTXQX  224C ONVOY, LLC 634   2021-04-05   
309-568 6 Andover IL DVNPIADTXQX  224C ONVOY, LLC 634   2020-04-29   
309-568 7 Andover IL DVNPIADTXQX  224C ONVOY, LLC 634   2023-06-05   
309-568 8 Andover IL   495J STRATUS NETWORKS 634   2020-10-14   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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