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Phone Directory 303-437 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 437-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-437 Denver, CO Sprint Spectrum L.p. Jefferson Cell Number 10/15/1996

Other Series For Prefixes

303-4370###
303-4371###
303-4372###
303-4373###
303-4374###
303-4375###
303-4376###
303-4377###
303-4378###
303-4379###