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: BLTMMDCHDS2

Remotes:

Switch Switch name Switch type
BLTMMDMDRS0  BALTIMORE  5ER 

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-736 7 Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-962 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
443-220 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
443-220 0 Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
443-378 4 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2006-02-20   
443-423 4 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 5 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 6 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 7 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-462 3 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2009-04-20   
443-462 4 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2009-04-20   
443-462 5 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2009-04-20   
443-642 2 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-01-08   
443-642 3 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-01-08   
443-642 4 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-01-08   
443-642 5 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-01-08   
443-642 6 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-01-08   
443-682 6 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2007-06-02   
443-965 2 Baltimore MD 9212 VERIZON MARYLAND, INC. 238   2006-08-31   
443-984 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
667-233 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      

<< 1 2

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.