Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 4164 SAN ISABEL TELECOM, INC. - CO

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
970-273 A Basalt CO GYPSCO03DS0  656      
970-277 A Aspen CO GYPSCO03DS0  656      
970-280 A Eagle CO GYPSCO03DS0  656      
970-337 A Eagle CO GYPSCO03DS0  656      
970-754 A Vail CO GYPSCO03DS0  656      
970-766 A Edwards CO GYPSCO03DS0  656      
970-777 A Gypsum CO GYPSCO03DS0  656      
970-790 A Vail CO GYPSCO03DS0  656      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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