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: 939

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-939 A Astoria IL MCMBILXDX8X  506J TWILIO INTERNATIONAL, INC. 977      
309-939 2 Astoria IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-07-05   
309-939 4 Astoria IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-10-16   
309-939 8 Astoria IL MCMBILXDX8X  506J TWILIO INTERNATIONAL, INC. 977   2022-06-17   

Last updated: Sat, 25 Feb 2023 02:10:49 UTC

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