Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-550 A Pittsburgh Zone 1 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234      
412-550 0 Pittsburgh Zone 1 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2018-10-20   
412-550 1 Pittsburgh Zone 1 PA PITBPAOKCMD  551G NUSO, LLC 234   2018-11-07   
412-550 2 Pittsburgh Zone 1 PA PITBPAOKCMD  551G NUSO, LLC 234   2018-11-07   
412-550 3 Pittsburgh Zone 1 PA   547E ONVOY, LLC - PA 234   2025-03-02   
412-550 4 Pittsburgh Zone 1 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2018-09-10   
412-550 5 Pittsburgh Zone 1 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2018-07-30   
412-550 6 Pittsburgh Zone 1 PA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-05-04   
412-550 7 Pittsburgh Zone 1 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2024-03-09   
412-550 8 Pittsburgh Zone 1 PA PITBPAOKCMD  551G NUSO, LLC 234   2018-11-07   
412-550 9 Pittsburgh Zone 1 PA PITBPAOKCMD  551G NUSO, LLC 234   2018-11-07   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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