Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 846

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-846 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-846 0 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 1 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 2 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 3 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 4 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 5 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 6 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 7 Frederick MD   9212 VERIZON MARYLAND, INC. 240      
301-846 8 Frederick MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2015-10-01   
301-846 9 Frederick MD   9212 VERIZON MARYLAND, INC. 240      

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

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