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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Switch: INHDMDINRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-743 A Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 2 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 3 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 4 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 5 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 6 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 7 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 8 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-743 9 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 A Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 1 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 2 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 3 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 4 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 5 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      
301-744 6 Indian Head MD 9212 VERIZON MARYLAND, INC. 236      

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

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