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: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 654

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-654 A Waterloo (Washington DC LATA) MD ODTNMDAUDS0  9212 VERIZON MARYLAND, INC. 236      
443-654 0 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 1 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 2 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 3 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 4 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 5 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 6 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 7 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 8 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   
443-654 9 Waterloo (Washington DC LATA) MD   9212 VERIZON MARYLAND, INC. 236   2008-09-27   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.