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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-907 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 0 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 2 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 3 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 4 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 5 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 6 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 7 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 8 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-907 9 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-913 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-913 0 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-913 2 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-913 5 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-913 9 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 0 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 1 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 2 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 8 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-941 9 Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-951 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-961 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      
301-986 A Washington Zone 2 MD 9212 VERIZON MARYLAND, INC. 236      

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

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