Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 551 [Rate centres in NPA 551] [Dial plan for NPA 551]

NXX: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-329 A Ridgewood NJ NWRKNJMDOMD  939H COMMIO, LLC 224      
551-329 0 Ridgewood NJ   939H COMMIO, LLC 224   2021-11-25   
551-329 1 Ridgewood NJ   939H COMMIO, LLC 224   2021-11-25   
551-329 2 Ridgewood NJ   939H COMMIO, LLC 224   2021-11-25   
551-329 3 Ridgewood NJ   624H ONVOY SPECTRUM, LLC 224   2021-11-29   
551-329 4 Ridgewood NJ   624H ONVOY SPECTRUM, LLC 224   2021-11-29   
551-329 5 Ridgewood NJ   624H ONVOY SPECTRUM, LLC 224   2021-11-29   
551-329 6 Ridgewood NJ   624H ONVOY SPECTRUM, LLC 224   2021-11-29   
551-329 7 Ridgewood NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2022-01-01   
551-329 8 Ridgewood NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2022-01-01   
551-329 9 Ridgewood NJ   624H ONVOY SPECTRUM, LLC 224   2022-03-21   

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

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