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: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-501 A Washington IL PEORILPJX1Y  6529 T-MOBILE USA, INC. 368      
309-501 0 Washington IL   224C ONVOY, LLC 368   2024-08-22   
309-501 1 Washington IL   6529 T-MOBILE USA, INC. 368   2009-10-09   
309-501 2 Washington IL   224C ONVOY, LLC 368   2021-04-24   
309-501 3 Washington IL   224C ONVOY, LLC 368   2021-04-24   
309-501 4 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   
309-501 5 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   
309-501 6 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   
309-501 7 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   
309-501 8 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   
309-501 9 Washington IL   6529 T-MOBILE USA, INC. 368   2015-07-24   

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

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