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: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
640-237 A Mays Landing NJ PSVLNJPLXRX  637C ONVOY, LLC - NJ 220   2024-08-08   
640-237 0 Mays Landing NJ PSVLNJPLXRX  637C ONVOY, LLC - NJ 220   2024-08-08   
640-237 7 Mays Landing NJ   824J OPENTACT INC. 220   2026-09-13   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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