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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-228 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
240-456 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
240-568 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-206 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
301-317 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-362 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-369 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
301-376 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-470 A Washington Zone 14 MD 9212 VERIZON MARYLAND, INC. 236    
301-483 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-490 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-497 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-498 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-549 A Ashton MD 9212 VERIZON MARYLAND, INC. 236    
301-604 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-617 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-647 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
301-725 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-776 A Laurel MD 9212 VERIZON MARYLAND, INC. 236    
301-886 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
301-939 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
301-953 A Washington Zone 13 MD 9212 VERIZON MARYLAND, INC. 236    
410-264 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-416 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-619 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-724 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-792 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-797 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-880 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
410-888 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    
443-778 A Waterloo (Washington DC LATA) MD 9212 VERIZON MARYLAND, INC. 236    

Last updated: Sun, 30 Dec 2018 03:08:45 UTC

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