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About Colorado Phone Directory

Phone numbers for Colorado live across hundreds of separate offices - the state contacts search, 64 county governments, city and town halls, school district and campus directories, utility companies, hospitals, plus the area-code lookups maintained by NANPA and the FCC. Tracking down the right number usually means bouncing between websites. We built this site so you can land on the right directory, area-code reference, or hotline without hunting through five other sites first.

Why We Built This Site

Colorado publishes phone information across many separate offices. The state contacts search covers agencies and all 64 counties. The municipal league's directory covers cities and towns. Each school district and campus runs its own searchable directory. Library systems list every branch. Public-safety lines split between 911, 988, 211, and a non-emergency number per community. Add the county clerk rosters, the utility outage lines, and the FCC and NANPA references for area codes, and the picture gets crowded fast. We pull together the lookup tools, contact methods, and reference data for each of these in one place.

What You Will Find Here

  • Pages by phone topic: phone area codes, phone numbers, and phone codes
  • Local directory contacts: state agencies, county governments, cities and towns, school districts, universities, libraries, major utilities, public safety
  • Directory walkthroughs: how to use the Colorado state contacts search, how to navigate district and campus directories, how to reverse-lookup an unknown caller
  • Phone numbering reference: the area codes serving Colorado, local exchange (NXX) prefixes, N11 service codes (211 / 311 / 911 / 988), vertical service codes, and toll-free prefixes

What We Cannot Do

This is a privately run reference site. We have no connection to any Colorado city or county office, Colorado state agency, school district, utility, telecommunications carrier, or directory operator. There are real limits to what we can help with:

  • We cannot place calls on your behalf or connect you to a department
  • We cannot change anyone's directory listing, add a number, or remove a listing
  • We cannot verify the identity of someone who called you
  • We cannot give legal advice or explain how a specific scam call applies to your situation
  • We cannot guarantee that every phone number, area code, or directory link on this site is current right now

Only the originating office can confirm a current phone number or change a listing. For emergencies, dial 911. For a mental-health or suicidal crisis, dial 988.