Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 540 [Rate centres in NPA 540] [Dial plan for NPA 540]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-957 A Buena Vista VA RONKVALKX1Z  138E ONVOY, LLC - VA 244      
540-957 0 Buena Vista VA RONKVALKXGX  624H ONVOY SPECTRUM, LLC 244   2023-09-02   
540-957 2 Buena Vista VA RONKVALKX1Z  138E ONVOY, LLC - VA 244   2022-05-12   
540-957 3 Buena Vista VA RONKVALKX1Z  138E ONVOY, LLC - VA 244   2022-05-12   
540-957 4 Buena Vista VA RONKVALKX1Z  138E ONVOY, LLC - VA 244   2022-05-12   
540-957 5 Buena Vista VA RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244   2022-07-15   
540-957 6 Buena Vista VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2025-04-20   
540-957 8 Buena Vista VA   5562 METROPCS, INC. 244   2025-04-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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