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: RKVLMDMRDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-221 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
240-221 0 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
240-221 2 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
240-221 4 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-230 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 0 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 2 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 3 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 4 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 5 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 6 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 7 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 8 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-231 9 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 0 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 1 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 2 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 3 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 4 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 5 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 6 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 7 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-255 8 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-321 5 Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-382 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-413 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-468 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-522 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-770 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-816 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-881 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-984 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      
301-998 A Washington Zone 11 MD 9212 VERIZON MARYLAND, INC. 236      

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

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