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.

Switch: WDRFMDWDDS0

Remotes:

Switch Switch name Switch type
BADNMDBNRS0  BADEN  5ER 
BRNDMDBERS0  BRANDYWINE  5ER 
BRRDMDBRRS0  BRYANS ROAD  ORM 
HUVLMDHVRS0  HUGHESVILLE  5ER 
MCHVMDMCRS1  MECHANICSVILLE  EXM 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-843 A Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-870 A Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-885 A Waldorf MD 9212 VERIZON MARYLAND, INC. 236      
301-885 0 Waldorf MD 9212 VERIZON MARYLAND, INC. 236      
301-885 1 Waldorf MD 9212 VERIZON MARYLAND, INC. 236      
301-885 2 Waldorf MD 9212 VERIZON MARYLAND, INC. 236      
301-885 3 Waldorf MD 9212 VERIZON MARYLAND, INC. 236      
301-893 A Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 0 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 1 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 2 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 3 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 6 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      
301-893 8 Washington Zone 6 MD 9212 VERIZON MARYLAND, INC. 236      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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