Local Calling Guide
Local prefixes
Inbound calling to Helena, OK NPA;NXX;Rate Centre;Region;Plan Type;Call Type;Monthly Limit;Note;Effective 580;779;Helena;OK;;;;; 580;852;Helena;OK;;;;;
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
Inbound calling to Helena, OK NPA;NXX;Rate Centre;Region;Plan Type;Call Type;Monthly Limit;Note;Effective 580;779;Helena;OK;;;;; 580;852;Helena;OK;;;;;
Last updated: Sun, 26 Jan 2025 15:59:20 UTC