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.

Kennewick, WA

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-619 5 SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2008-08-13   
509-619 6 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2007-08-13   
509-619 7 KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2007-08-20   
509-619 8 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2007-10-08   
509-619 9 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2007-07-02   
509-627 A KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 0 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 1 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 2 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 3 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 4 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 5 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 6 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 7 KNWCWAXAPS3  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 676      
509-627 8 SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2007-03-10   
509-627 9 SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2007-03-10   
509-628 A KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676   2024-02-14   
509-628 0 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-628 1 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-628 2 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-628 3 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-628 4 KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2006-01-22   
509-628 5 KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2006-01-22   
509-628 6 SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2006-06-22   
509-628 7 SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2006-06-22   
509-628 8 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-628 9 KNWCWAXAPS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-706 A   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-08-23   
509-706 0   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-10-31   
509-706 1   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-12-26   
509-706 5   6270 UNITED STATES CELLULAR - WA 676   2025-10-06   
509-706 6   490J BOOST SUBSCRIBERCO L.L.C. 676   2025-11-13   
509-706 9   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-08-23   
509-727 A KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 0 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 1 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 2 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 3 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 4 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 5 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 6 KNWCWAXA1MD  5562 METROPCS, INC. 676      
509-727 7 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 8 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676      
509-727 9 KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2009-04-02   
509-734 A KNWCWAXAPS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-735 A KNWCWAXADS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-736 A KNWCWAXADS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-737 A KNWCWAXADS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-737 0 KNWCWAXADS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-737 1 KNWCWAXADS1  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      

<< 1 2 3 4 5 6 7 8 >>

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.