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: NRBHMDNEDS0

Remotes:

Switch Switch name Switch type
MUTLMDMTRS0  MUTUAL  5ER 
PRFRMDPFRS1  PRINCE FREDERICK  EXM 
SLMNMDSLRS1  SOLOMONS  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-812 A Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-812 0 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-812 1 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-812 2 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 A Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 0 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 2 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 3 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 4 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 5 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 6 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 7 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-855 8 Washington Zone 15 (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
410-257 A North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 A North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 0 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 2 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 3 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 5 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 6 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 7 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 8 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-286 9 North Beach MD 9212 VERIZON MARYLAND, INC. 238      
410-741 5 West River MD 9212 VERIZON MARYLAND, INC. 238      
443-550 6 North Beach MD 9212 VERIZON MARYLAND, INC. 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.