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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-510 A Othello WA   3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676   2020-10-08   
509-510 2 Othello WA   506J TWILIO INTERNATIONAL, INC. 676   2021-01-28   
509-510 5 Othello WA   3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676   2020-10-08   

Last updated: Sun, 29 Nov 2020 13:13:58 UTC

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