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Phone Directory 406-321 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-321 Columbus, MT New Cingular Wireless PCS Stillwater Cell Number 09/11/1994

Other Series For Prefixes

406-3210###
406-3211###
406-3212###
406-3213###
406-3214###
406-3215###
406-3216###
406-3217###
406-3218###
406-3219###