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: STTNWAHODSC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
425-279 9 Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-05-08   
425-284 9 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-08-07   
425-292 5 North Bend WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2011-05-22   
425-296 A Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-296 0 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-296 1 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-01-04   
425-296 2 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-01-04   
425-296 3 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2007-09-25   
425-296 4 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2003-01-22   
425-296 6 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-03   
425-296 7 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-03   
425-296 8 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-03   
425-296 9 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-03   
425-300 A Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-300 1 Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2020-02-29   
425-300 2 Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2019-12-20   
425-300 5 Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2020-02-07   
425-300 6 Bellevue WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2020-02-07   
425-305 A Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-305 2 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2014-06-22   
425-307 2 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-12   
425-307 6 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-307 9 Kirkland WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-12   
425-312 6 Everett WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2011-08-05   
425-318 A Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-318 1 Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-09   
425-318 3 Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-318 4 Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-09   
425-318 7 Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-09   
425-318 8 Bothell WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2010-04-16   
425-320 1 Everett WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-10   
425-320 3 Everett WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-10   
425-320 4 Everett WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-10   
425-321 A Silver Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-321 0 Silver Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-321 2 Silver Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2012-02-09   
425-321 5 Silver Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-04-13   
425-321 6 Silver Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2015-12-05   
425-329 3 Halls Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-01-11   
425-329 4 Halls Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2003-01-06   
425-329 6 Halls Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-04   
425-329 7 Halls Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-04   
425-329 8 Halls Lake WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-04   
425-336 A Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-336 0 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-01-13   
425-336 1 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-11   
425-336 2 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-11   
425-336 3 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-06-11   
425-336 4 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-336 7 Renton WA 6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2010-09-24   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.