Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 506 [Rate centres in NPA 506] [Dial plan for NPA 506]

NXX: 520

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
506-520 A Belledune NB BLDNNBSCAMD  329A ALIANT TELECOM (MOBILITY) 888 809001    

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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