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.

OCN: 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-989 8 Glen Burnie MD BLTOMDKHBMD  238   2006-07-03   
443-991 A Towson MD BLTOMDKHBMD  238      
443-991 0 Towson MD BLTOMDKHBMD  238   2012-11-15   
443-991 9 Towson MD BLTOMDKHBMD  238   2012-11-01   
667-201 A Bel Air MD BLTOMDKHBMD  238      
667-201 0 Bel Air MD BLTOMDKHBMD  238   2016-01-16   
667-201 1 Bel Air MD BLTOMDKHBMD  238   2016-06-04   
667-201 8 Bel Air MD BLTOMDKHBMD  238   2018-04-28   
667-203 A Baltimore MD BLTOMDKHBMD  238      
667-203 0 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 1 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 2 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 3 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 4 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 5 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 6 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 7 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 8 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-203 9 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-204 0 Annapolis MD BLTOMDKHBMD  238   2017-09-18   
667-204 8 Annapolis MD BLTOMDKHBMD  238   2018-05-24   
667-205 A Baltimore MD BLTOMDKHBMD  238      
667-205 0 Baltimore MD BLTOMDKHBMD  238   2012-06-07   
667-207 A Baltimore MD BLTOMDKHBMD  238      
667-207 0 Baltimore MD BLTOMDKHBMD  238   2012-05-07   
667-208 A Baltimore MD BLTOMDKHBMD  238      
667-208 0 Baltimore MD BLTOMDKHBMD  238   2012-05-07   
667-209 A Baltimore MD BLTOMDKHBMD  238      
667-209 0 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-209 1 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-209 2 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-209 3 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-209 4 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-209 5 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-209 6 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-209 7 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-209 8 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-209 9 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 A Baltimore MD BLTOMDKHBMD  238      
667-210 0 Baltimore MD BLTOMDKHBMD  238   2012-06-07   
667-210 1 Baltimore MD BLTOMDKHBMD  238   2012-06-07   
667-210 3 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 4 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 6 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 7 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 8 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-210 9 Baltimore MD BLTOMDKHBMD  238   2012-10-27   
667-212 A Baltimore MD BLTOMDKHBMD  238      
667-212 0 Baltimore MD BLTOMDKHBMD  238   2012-04-07   
667-213 A Baltimore MD BLTOMDKHBMD  238      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

Last updated: Fri, 10 Jul 2026 02:55:48 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.