Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-540 A Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-540 0 Delta CO   515J IP HORIZON LLC 656   2022-04-29   
970-540 4 Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-540 5 Delta CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-540 7 Delta CO DNVRCOMA40Z  506J TWILIO INTERNATIONAL, INC. 656   2020-12-18   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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