Local Calling Guide

Area code/prefix search

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NPA: 971 [Rate centres in NPA 971] [Dial plan for NPA 971]

NXX: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-383 A Portland OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
971-383 0 Portland OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2021-02-20   
971-383 1 Portland OR   318J COMCAST IP PHONE, LLC 672   2020-11-07   
971-383 2 Portland OR   318J COMCAST IP PHONE, LLC 672   2020-11-07   
971-383 3 Portland OR   318J COMCAST IP PHONE, LLC 672   2020-11-07   
971-383 4 Portland OR   318J COMCAST IP PHONE, LLC 672   2020-11-07   
971-383 5 Portland OR   318J COMCAST IP PHONE, LLC 672   2020-11-07   
971-383 6 Portland OR   624H ONVOY SPECTRUM, LLC 672   2021-02-23   
971-383 7 Portland OR   624H ONVOY SPECTRUM, LLC 672   2021-02-23   
971-383 8 Portland OR   624H ONVOY SPECTRUM, LLC 672   2021-02-23   
971-383 9 Portland OR   624H ONVOY SPECTRUM, LLC 672   2021-02-23   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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