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: 648

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-648 A Monterey VA RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244      
540-648 2 Monterey VA RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2018-03-19   
540-648 9 Monterey VA WYBOVAXAW43  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244   2022-01-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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