Local Calling Guide

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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 829

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-829 A Mount Airy MD MTARMDMARS1  9212 VERIZON MARYLAND, INC. 240      
301-829 0 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 1 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 2 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 3 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 4 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 5 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 6 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 7 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240   2001-11-03   
301-829 8 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      
301-829 9 Mount Airy MD   9212 VERIZON MARYLAND, INC. 240      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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