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Phone Directory 720-231 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-231 Denver, CO T-mobile Usa Jefferson Cell Number 05/10/1999

Other Series For Prefixes

720-2310###
720-2311###
720-2312###
720-2313###
720-2314###
720-2315###
720-2316###
720-2317###
720-2318###
720-2319###