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: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-350 A Rock Island IL DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
309-350 0 Rock Island IL   5562 METROPCS, INC. 634   2018-08-03   
309-350 1 Rock Island IL   5562 METROPCS, INC. 634   2018-08-03   
309-350 2 Rock Island IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 634   2023-03-24   
309-350 3 Rock Island IL   5562 METROPCS, INC. 634   2020-04-23   
309-350 4 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-10-09   
309-350 5 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-10-09   
309-350 6 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-10-09   
309-350 7 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-07-27   
309-350 8 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-07-27   
309-350 9 Rock Island IL   6529 T-MOBILE USA, INC. 634   2018-07-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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