Colorado Area Codes
Colorado is served by 6 telephone area codes in the North American Numbering Plan (NANP). These area codes serve different communities and regions throughout the state.
Below is a list of the area codes serving Colorado. Select an area code to find information about its major cities, prefixes, companies, and community caller reports.
Area Codes in Colorado
| Area Code | Major Cities | Reports |
|---|---|---|
| 303 | Denver, Longmont | 2 reports |
| 719 | Pueblo | 10 reports |
| 720 | Denver, Longmont | 23 reports |
| 748 | — | 1 report |
| 970 | Greeley, Loveland, Windsor | 3 reports |
| 983 | Denver, Longmont | No reports |
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Caller Reports in Colorado
| Category | Reports |
|---|---|
| Unknown Caller | 28 |
| Scam | 8 |
| Telemarketer | 3 |
Top 10 Largest Cities in Colorado
| City | Population |
|---|---|
| Denver city | 740613 |
| Colorado Springs city | 494743 |
| Aurora city | 410053 |
| Fort Collins city | 171500 |
| Lakewood city | 156927 |
| Thornton city | 147766 |
| Arvada city | 122901 |
| Westminster city | 116182 |
| Greeley city | 115073 |
| Pueblo city | 110404 |
Colorado Area Code Map
Community Reports in Colorado
Category: Unknown Caller
they keep calling all morning, supposedly is Mutual of Omaha, and they using my minutes on my cell phone, I have no idea where they got my phone number. I wish they would stop, because I do not need their service period......
Category: Unknown Caller
Absurd! Wants me to transfer money over for my winnings shipping cost
Category: Scam
I was left a voice mail message that I was being sued by the IRS and to call this #!! I have not IRS issues so this was a FRAUD for sure. I returned the call and the phone was never answered!!
Category: Telemarketer
telemarketer
Category: Telemarketer
Telemarketer
Category: Unknown Caller
called 2 days in a row...no message left
Category: Unknown Caller
Heavy accent, mispronounced name.
Category: Unknown Caller
Spam phone calls
Category: Unknown Caller
Kalamazoo
Category: Scam
Scam phone number! Not from state of Colorado. State is listed as a foreign country.
Category: Unknown Caller
Digital voice said to call a number back that they were the IRS. They had been looking for us. I owe Nothing and have my tax form filled out by certified CPA. The IRS has my current address. No I didn't call back to an unavailable ID, number..
Category: Unknown Caller
I always get this phone call back to back. A voice mail is left each or all times and it's just fax beeps for the duration of the messages.
Category: Unknown Caller
Voice mail was invented for a reason, use it otherwise look forward to harassment
Category: Unknown Caller
I dislike unlisted numbers.
Category: Unknown Caller
I dislike unlisted phone numbers.
Category: Scam
recording say's they are the IRS and you need to call 216-xxx-xxxx didn't get the rest of the phone number to call back to look up. the recording stated I owed the IRS money. What a scam If You go for this recording?????/
Category: Unknown Caller
APPEARS TO BE A FRONT PHONE # FOR A PONZI COMPANY?????
Category: Scam
720-522-4025<br /><br />The above phone number is a Craigslist scammer. They'll ask for your paypal account and 'send' you money and include extra for shipping. Do not fall prey to these pricks.
Category: Scam
720-522-4025<br /><br />The above phone number is a Craigslist scammer. They'll ask for your paypal account and 'send' you money and include extra for shipping. Do not fall prey to these pricks.
Category: Unknown Caller
multiple calls - no voicemail - cant call back
Timezone
Colorado's area codes primarily use the Mountain Timezone.
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