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: 790

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-790 A Roanoke VA RONKVALKX4Z  996H AIRESPRING, INC. 244      
540-790 0 Roanoke VA   996H AIRESPRING, INC. 244   2020-11-12   
540-790 1 Roanoke VA   624H ONVOY SPECTRUM, LLC 244   2021-11-13   
540-790 2 Roanoke VA   624H ONVOY SPECTRUM, LLC 244   2021-11-13   
540-790 3 Roanoke VA   624H ONVOY SPECTRUM, LLC 244   2021-11-13   
540-790 4 Roanoke VA   624H ONVOY SPECTRUM, LLC 244   2021-11-13   
540-790 5 Roanoke VA   624H ONVOY SPECTRUM, LLC 244   2021-11-13   
540-790 6 Roanoke VA   138E ONVOY, LLC - VA 244   2022-02-13   
540-790 7 Roanoke VA   138E ONVOY, LLC - VA 244   2022-02-13   
540-790 8 Roanoke VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244   2024-01-01   
540-790 9 Roanoke VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244   2024-01-01   

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

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