Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-226 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-322 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-341 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-386 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-546 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 0 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 1 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 2 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 3 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 4 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 5 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 7 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 8 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-583 9 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 1 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 4 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 5 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 7 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-618 8 Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 A Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 1 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 2 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 6 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 8 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-636 9 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-772 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-773 A Washington Zone 4 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 A Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 0 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 2 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 3 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 4 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 5 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 6 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 7 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 8 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-883 9 Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      
301-925 A Washington Zone 5 MD 9212 VERIZON MARYLAND, INC. 236      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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