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: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-612 A Bloomington IL BLTNILXDY0X  425J CSC WIRELESS, LLC 366      
309-612 0 Bloomington IL   073H TELNYX LLC 366   2021-12-20   
309-612 1 Bloomington IL   073H TELNYX LLC 366   2021-12-20   
309-612 2 Bloomington IL   425J CSC WIRELESS, LLC 366   2020-06-20   
309-612 3 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 4 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 5 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 6 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 7 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 8 Bloomington IL   6529 T-MOBILE USA, INC. 366   2022-02-05   
309-612 9 Bloomington IL   224C ONVOY, LLC 366   2024-02-22   

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

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