Local numbers · USA
Get Boulder virtual phone numbers
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Get a real Boulder, Colorado phone number with the area code you want, 303, 720, or 970. Keep it separate from your personal line for selling online, dating, or a move without touching your main number. Start in minutes right from the Ghost app.
Unwanted calls in Boulder
Between Aug 20, 2026 and Sep 23, 2026, Boulder residents filed 30 unwanted-call reports with the FTC. 73% were robocalls or recorded messages, and impersonation scams led the list. After that: debt relief offers (17%), vacations and timeshares (7%), fake tech support (7%).
Source: FTC Do Not Call complaint data, Aug 20, 2026 to Sep 23, 2026. Consumer reports, not verified by the FTC.
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Why choose a Boulder virtual phone number?
Longmont and Broomfield are a quick drive
Boulder sits close to Longmont and Broomfield, and plenty of people here run errands, commute, or handle family stuff across that stretch. A Boulder number keeps your line looking familiar to anyone in that corridor.
303 and 720 read as Denver
Both 303 and 720 are common in the Denver area, so a Boulder number with either code looks at home to contacts in Lakewood, Thornton, Arvada, or Westminster, places a lot of Boulder residents call regularly.
970 connects you north
The 970 area code is common in Fort Collins and much of northern Colorado. If your contacts lean toward that direction, a 970 number on your second line fits right in.
Boulder's most reported scam calls
Residents here report more calls from people impersonating government agencies, businesses, or family than any other kind of unwanted call. A second number for anything you post publicly keeps that traffic off your main line.
Debt relief and tech support pitches
After impersonation calls, the next most reported unwanted calls in Boulder are debt relief offers and fake tech support pitches. Routing classifieds or app signups through a separate number keeps those calls somewhere easy to ignore.
Most popular Boulder virtual phone numbers
| Area code | Serves | Get this area code |
|---|---|---|
| +1 303 | Denver | Get a 303 number |
| +1 720 | Denver | Get a 720 number |
| +1 970 | Fort Collins | Get a 970 number |
Local economy
Why do business in Boulder?
Boulder sits along Colorado's Front Range, with close ties to nearby cities that support its economy and workforce.
Higher education and research
Boulder anchors a cluster of colleges and research organizations that draw students, faculty, and researchers from across the Front Range, including nearby Longmont and Broomfield.
Healthcare
Hospitals and clinics based in Boulder serve residents throughout surrounding communities, including Erie and Broomfield, along with the city itself.
Logistics and distribution
Boulder's spot along the Front Range keeps it linked to distribution and logistics activity moving through nearby Longmont, Broomfield, and Brighton.
About Boulder
Area codes in service
3
Population
106,803
303 and 720 are both associated with Denver, and many people in Boulder carry one of the two. If you have family or friends in Lakewood, Thornton, Arvada, or Westminster, they'll likely see a familiar area code when you reach out. Farther north, 970 is common in Fort Collins and covers much of northern Colorado, useful if your contacts lean toward Longmont, Broomfield, or Brighton.
Boulder runs on Mountain Time. The 303, 720, and 970 area codes overlap across much of the same region, so a number with a different code from your own can still belong to a neighbor living just minutes away, whether that's in Erie or Longmont.
Over the past month, Boulder residents told the FTC that most unwanted calls were robocalls or recorded messages. The most common type was callers impersonating government agencies, businesses, or family members, followed by debt relief pitches, vacation and timeshare offers, and fake tech support calls.
Places near Boulder
The closest place to Boulder in the Census list is Gunbarrel, 5 miles northeast. The largest nearby is Denver (729,019 people), 27 miles southeast. 8 of the 8 places below also use the 303 area code: Gunbarrel, Louisville, Superior, Lafayette, Erie, Broomfield, Longmont and Lyons.
5 mi northeast · 9,554 people · area code 303, 720, 970
7 mi southeast · 20,811 people · area code 303, 720, 970
8 mi southeast · 13,654 people · area code 303, 720, 970
8 mi east · 30,587 people · area code 303, 720, 970
11 mi east · 38,594 people · area code 303, 720, 970
12 mi southeast · 78,323 people · area code 303, 720, 970
13 mi northeast · 99,818 people · area code 303, 720, 970
Lyons, CO
14 mi north · 2,155 people · area code 303, 720, 970
Distances are straight-line between Census place centers.
Frequently asked questions
How fast can I get a Boulder phone number?
You can pick a Boulder number, choose 303, 720, or 970, and start calling and texting in minutes from the Ghost app.
Can I choose between 303, 720, and 970?
Yes. Ghost lets you pick the area code for your Boulder number, whether that's 303 or 720 to match the Denver area, or 970 for a northern Colorado feel.
Will a Boulder number work for calling and texting nearby cities?
Yes. Your Boulder number works for calling and texting anyone in the US and Canada, including contacts in Longmont, Broomfield, Brighton, or elsewhere in Colorado.