Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 419 [Rate centres in NPA 419] [Dial plan for NPA 419]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
419-638 A Helena OH HLNAOHXARS0  0615 FRONTIER NORTH, INC. - OH 326      
419-638 1 Helena OH HLNAOHXARS0  0615 FRONTIER NORTH, INC. - OH 326      
419-638 2 Helena OH HLNAOHXARS0  0615 FRONTIER NORTH, INC. - OH 326      
419-638 3 Helena OH HLNAOHXARS0  0615 FRONTIER NORTH, INC. - OH 326      
419-638 4 Helena OH   145J TERRA NOVA TELECOM INC. 326   2022-10-06   
419-638 5 Helena OH BWLGOHXAUMD  624H ONVOY SPECTRUM, LLC 326   2021-12-17   
419-638 6 Helena OH BWLGOHXAUMD  624H ONVOY SPECTRUM, LLC 326   2021-12-17   
419-638 7 Helena OH BWLGOHXAUMD  624H ONVOY SPECTRUM, LLC 326   2021-12-17   
419-638 9 Helena OH BWLGOHXAUMD  624H ONVOY SPECTRUM, LLC 326   2021-12-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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