Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 640 [Rate centres in NPA 640] [Dial plan for NPA 640]

NXX: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
640-224 A Plainsboro NJ CMDNNJCE51Z  624H ONVOY SPECTRUM, LLC 222      
640-224 0 Plainsboro NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 222   2021-06-07   
640-224 1 Plainsboro NJ   118F BANDWIDTH.COM CLEC, LLC - NJ 222   2021-06-07   
640-224 2 Plainsboro NJ   624H ONVOY SPECTRUM, LLC 222   2021-06-06   
640-224 3 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2021-07-15   
640-224 4 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2021-07-15   
640-224 5 Plainsboro NJ   624H ONVOY SPECTRUM, LLC 222   2021-12-02   
640-224 6 Plainsboro NJ   624H ONVOY SPECTRUM, LLC 222   2021-12-02   
640-224 7 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2022-09-25   
640-224 8 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2022-09-25   
640-224 9 Plainsboro NJ   637C ONVOY, LLC - NJ 222   2022-09-25   

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

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