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: FRDRMDFRXSX

1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
227-203 0 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2023-10-07   
227-203 4 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2023-10-07   
227-203 6 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-01-05   
227-203 8 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-223 4 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2025-01-13   
227-223 9 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-01-28   
227-226 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-226 8 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-226 9 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-237 0 Myersville MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-07-26   
227-252 0 Myersville MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-11-21   
227-252 1 Myersville MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-11-21   
227-253 6 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-12-23   
227-253 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-12-23   
240-215 5 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-06-02   
240-215 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-06-02   
240-267 A Hagerstown MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-267 0 Hagerstown MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2017-06-17   
240-267 9 Hagerstown MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2017-12-29   
240-285 A Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-285 0 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2003-08-19   
240-285 1 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2003-11-03   
240-285 2 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2004-09-29   
240-285 3 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2004-11-04   
240-285 4 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2004-12-02   
240-285 5 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2003-07-05   
240-285 6 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2004-04-20   
240-285 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2003-08-03   
240-285 8 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2003-08-03   
240-313 8 Hagerstown MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2012-05-22   
240-315 3 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-01-02   
240-315 4 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-01-02   
240-315 5 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-01-02   
240-315 6 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-04-01   
240-315 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-05-02   
240-315 8 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2005-07-02   
240-315 9 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2019-08-22   
240-343 A Hancock MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-343 0 Hancock MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2011-07-07   
240-357 A Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-357 0 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-08-05   
240-357 1 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2007-08-02   
240-357 3 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2007-12-14   
240-357 4 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-11-02   
240-357 5 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2007-06-01   
240-357 6 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2007-06-01   
240-357 7 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2007-07-02   
240-357 8 Frederick MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2008-02-14   
240-385 2 Myersville MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2010-06-15   
240-385 4 Myersville MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2011-03-04   

1 2 3 4 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.