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: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-780 A Bothell WA BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674      
425-780 0 Bothell WA   6529 T-MOBILE USA, INC. 674      
425-780 1 Bothell WA   6529 T-MOBILE USA, INC. 674      
425-780 2 Bothell WA   6529 T-MOBILE USA, INC. 674   2007-09-15   
425-780 3 Bothell WA   6529 T-MOBILE USA, INC. 674   2007-09-15   
425-780 4 Bothell WA   829J PAETEC ITEL, LLC 674   2009-05-24   
425-780 5 Bothell WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-02-19   
425-780 6 Bothell WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-02-19   
425-780 7 Bothell WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-02-19   
425-780 8 Bothell WA   6529 T-MOBILE USA, INC. 674   2006-12-28   
425-780 9 Bothell WA   5562 METROPCS, INC. 674      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.