Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 539 [Rate centres in NPA 539] [Dial plan for NPA 539]

NXX: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
539-312 A Colcord OK FTSMARSUXKX  624H ONVOY SPECTRUM, LLC 526   2025-01-10   
539-312 0 Colcord OK FTSMARSUXKX  624H ONVOY SPECTRUM, LLC 526   2025-01-10   
539-312 1 Colcord OK FTSMARSUXKX  624H ONVOY SPECTRUM, LLC 526   2025-01-10   

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

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