Access our verified Denver phone directory to identify unknown callers. Use our reverse lookup tools for any number with an area code 303, 720, or 983 to find phone number owner names, location, and more.
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Find phone numbers for city businesses, public services, and organizations by category.
According to the National Do Not Call Registry, Colorado residents filed 41,173 complaints about unwanted calls in 2024:
Phone numbers reported to the FTC as unwanted calls by Denver residents in the last 30 days.
+1 (720) 655-7272
Reducing your debt (credit cards, mortgage, student loans)
7 reports ·
+1 (877) 285-2647
Reducing your debt (credit cards, mortgage, student loans)
5 reports ·
+1 (888) 983-3240
Reducing your debt (credit cards, mortgage, student loans)
4 reports ·
+1 (352) 787-3320
Dropped call or no message
3 reports ·
+1 (888) 269-4978
Reducing your debt (credit cards, mortgage, student loans)
3 reports ·
+1 (801) 810-4815
Reducing your debt (credit cards, mortgage, student loans)
3 reports ·
+1 (800) 919-8366
Other
3 reports ·
+1 (716) 494-6026
Reducing your debt (credit cards, mortgage, student loans)
3 reports ·
+1 (720) 817-9254
Other
2 reports ·
+1 (720) 702-1192
Other
2 reports ·
Received a call from a business but aren't sure it's really them? Denver County, according to U.S. Census Bureau data, includes 23,403 firms and 27,347 establishments employing 478,263 people.
| County | Percent of City | Firms | Establishments |
|---|---|---|---|
| Denver | 100.00% | 23403 | 27347 |
Use our reverse lookup service to verify whether a number belongs to a legitimate local business, not scammers spoofing local numbers to gain your trust.
If you receive fraudulent calls or suspect a scam attempt, report it to reportfraud.ftc.gov or local police department using the following contacts:
Got a phone call or message from a Denver phone number you don't recognize? Before you answer, call back, or reply, use our phone number lookup service to find out who called you.
Colorado phone numbers use area codes 303, and 720. Select a code below to look up numbers starting with it.
Denver has a population of 715522 people (median age of 34.60) - thousands of potential callers you might not recognize: neighbors, an old contact, or someone you actually want to talk to. Use our local white pages to find residents' phone numbers and addresses sourced from Denver County, Colorado state, and other public records.