Local Calling Guide

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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-597 A Gaithersburg MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-597 0 Gaithersburg MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-597 1 Gaithersburg MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-597 2 Gaithersburg MD SLSPMD913MD  939H COMMIO, LLC 236      
240-597 3 Gaithersburg MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-597 4 Gaithersburg MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-597 5 Gaithersburg MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-597 6 Gaithersburg MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-597 7 Gaithersburg MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-597 8 Gaithersburg MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-597 9 Gaithersburg MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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