Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-621 A Newman Lake WA SPKNWA01XCY  318J COMCAST IP PHONE, LLC 676      
509-621 0 Newman Lake WA   318J COMCAST IP PHONE, LLC 676   2005-10-28   
509-621 2 Newman Lake WA   318J COMCAST IP PHONE, LLC 676   2020-11-05   
509-621 4 Newman Lake WA   663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2020-07-29   
509-621 5 Newman Lake WA   483E ONVOY, LLC - WA 676   2006-10-13   
509-621 6 Newman Lake WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2015-01-26   
509-621 7 Newman Lake WA   483E ONVOY, LLC - WA 676   2013-09-27   
509-621 8 Newman Lake WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-621 9 Newman Lake WA   483E ONVOY, LLC - WA 676   2021-06-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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