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: FPATMDFRDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-981 4 Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      
410-981 5 Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      
410-981 6 Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      
410-981 7 Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      
410-981 8 Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      
410-993 A Glen Burnie MD 9212 VERIZON MARYLAND, INC. 238      

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

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