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.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-855 A Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 0 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2016-08-15   
410-855 1 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 2 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 3 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 4 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-08-21   
410-855 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-07-02   
410-855 6 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 7 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 8 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 9 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.