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: BLLVWAGLDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
425-440 A Bellevue WA 9638 QWEST CORPORATION 674      
425-440 4 Bellevue WA 9638 QWEST CORPORATION 674   2008-03-14   
425-450 A Bellevue WA 9638 QWEST CORPORATION 674      
425-451 A Bellevue WA 9638 QWEST CORPORATION 674      
425-452 A Bellevue WA 9638 QWEST CORPORATION 674      
425-453 A Bellevue WA 9638 QWEST CORPORATION 674      
425-454 A Bellevue WA 9638 QWEST CORPORATION 674      
425-455 A Bellevue WA 9638 QWEST CORPORATION 674      
425-456 A Bellevue WA 9638 QWEST CORPORATION 674      
425-457 A Bellevue WA 9638 QWEST CORPORATION 674      
425-457 5 Bellevue WA 9638 QWEST CORPORATION 674   2006-11-20   
425-462 A Bellevue WA 9638 QWEST CORPORATION 674      
425-467 A Bellevue WA 9638 QWEST CORPORATION 674      
425-468 A Bellevue WA 9638 QWEST CORPORATION 674      
425-590 2 Bellevue WA 9638 QWEST CORPORATION 674      
425-590 5 Bellevue WA 9638 QWEST CORPORATION 674      
425-590 6 Bellevue WA 9638 QWEST CORPORATION 674      
425-590 8 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 A Bellevue WA 9638 QWEST CORPORATION 674      
425-635 0 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 1 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 2 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 3 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 4 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 5 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 6 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 7 Bellevue WA 9638 QWEST CORPORATION 674      
425-635 9 Bellevue WA 9638 QWEST CORPORATION 674      
425-637 A Bellevue WA 9638 QWEST CORPORATION 674      
425-638 A Bellevue WA 9638 QWEST CORPORATION 674      
425-638 0 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 1 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 4 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 5 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 6 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 7 Bellevue WA 9638 QWEST CORPORATION 674      
425-638 8 Bellevue WA 9638 QWEST CORPORATION 674      
425-646 A Bellevue WA 9638 QWEST CORPORATION 674      
425-688 A Bellevue WA 9638 QWEST CORPORATION 674      
425-709 A Bellevue WA 9638 QWEST CORPORATION 674      
425-777 8 Bellevue WA 9638 QWEST CORPORATION 674   2012-07-13   
425-973 A Bellevue WA 9638 QWEST CORPORATION 674      
425-990 A Bellevue WA 9638 QWEST CORPORATION 674      

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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