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: FRDRMDFRDS1

1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-236 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 1 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 3 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 4 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 5 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 6 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2002-06-20   
240-236 7 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-236 8 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-315 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-315 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-379 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-439 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2008-09-16   
240-529 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-529 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-529 1 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-566 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-566 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2002-07-26   
240-566 9 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2002-07-26   
240-586 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-586 5 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2007-01-21   
240-586 6 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2007-01-21   
240-586 7 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2007-01-21   
240-586 8 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2007-01-21   
240-626 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240   2005-12-14   
240-629 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 1 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 3 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 4 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 5 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 6 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 7 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
240-629 9 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 1 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 3 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 4 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 5 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 6 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 7 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-228 8 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-360 A Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-360 0 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-360 1 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-360 2 Frederick MD 9212 VERIZON MARYLAND, INC. 240      
301-360 3 Frederick MD 9212 VERIZON MARYLAND, INC. 240      

1 2 3 >>

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.