Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 308 [Rate centres in NPA 308] [Dial plan for NPA 308]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
308-257 A North Platte NE GDISNENWXEX  318J COMCAST IP PHONE, LLC 646      
308-257 0 North Platte NE GDISNENWZMD  073H TELNYX LLC 646   2023-09-01   
308-257 1 North Platte NE GDISNENWXEX  318J COMCAST IP PHONE, LLC 646   2023-06-04   
308-257 2 North Platte NE GDISNENWJMD  549E ONVOY, LLC - NE 646   2024-04-13   
308-257 3 North Platte NE GDISNENWJMD  549E ONVOY, LLC - NE 646   2024-05-11   
308-257 4 North Platte NE   5562 METROPCS, INC. 646   2025-05-07   
308-257 5 North Platte NE   549E ONVOY, LLC - NE 646   2025-11-29   
308-257 6 North Platte NE   6701 AERIAL COMMUNICATIONS, INC. 646   2025-04-30   
308-257 7 North Platte NE GDISNENWXDX  624H ONVOY SPECTRUM, LLC 646   2025-01-03   
308-257 8 North Platte NE GDISNENWJMD  549E ONVOY, LLC - NE 646   2024-06-29   
308-257 9 North Platte NE GDISNEASGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 646   2024-08-31   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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