Colorado Business Phone Numbers
Get a local presence anywhere in Colorado with numbers across all four area codes, from the Denver metro to the Western Slope. Pick a 303, 719, 720, or 970 line and start taking calls today.
Get a Colorado NumberColorado at a Glance
Colorado runs on small business. Roughly 684,726 of them, in fact, which is about 99.5% of every business in the state, and they employ around 1.2 million people [1]. That mix of contractors, breweries, ski shops, and tech startups is exactly the kind of crowd that lives or dies by whether the phone gets answered.
Confidence is finally inching back too. The Leeds Business Confidence Index climbed to 43.1 heading into Q1 2026, up from 36 the quarter before, though anything below 50 still signals caution [2]. Translation: people are picking up the phone again, but they're picky about who they call back.
A local number is a small thing that does a lot of work. A 303 line tells a Denver homeowner you're nearby. A 970 line tells a Grand Junction property manager you understand the Western Slope. Tonet lets you grab numbers in any Colorado area code and route them to whoever's actually free, whether they're in the office or on a job site outside Salida.
Colorado Area Codes
Colorado is split across four area codes that loosely map to geography. The 303 and 720 overlay covers Denver and the front-range suburbs, 719 belongs to Colorado Springs and the southeast, and 970 covers everything north, west, and into the mountains.
Major Cities in Colorado
From Denver's million-strong metro to Grand Junction on the Western Slope, Colorado's cities span very different markets. Pick a number that matches where your customers actually live.
Phone Features Built for Colorado Businesses
Whether you run a single-truck HVAC shop in Pueblo or a 30-person agency in RiNo, the basics are the same. Answer fast, sound professional, and keep the team in sync.
Auto Attendant
Greet callers with a menu that routes them to the right person, so the office line doesn't ring through to whoever's free.
Call Recording
Capture every call for training, dispute resolution, or that one customer who insists they ordered something else.
AI Transcription
Voicemails arrive as readable text in your inbox. Skim it between job sites instead of holding the phone to your ear in a windy parking lot.
Business SMS
Text from your business number, not your personal cell. Confirm appointments, send invoices, and keep the conversation on one line.
Mobile App
Take and make calls from your Tonet number on your phone. Great for crews moving between Denver, the Springs, and points west.
Daily Billing
Pay daily instead of monthly. Plans start at $10 per user per month with no contracts, and additional numbers are $2.50 a month each.
Frequently Asked Questions
Can I get a 303 number if I'm not in Denver?
Yes. Tonet numbers aren't tied to a physical address in the area code, so you can run a 303 line from Pagosa Springs or anywhere else. It just shows up as a Denver number on caller ID.
Which Colorado area code should I pick?
Pick the one your customers recognize. 303 and 720 read as Denver metro, 719 reads as Colorado Springs and the southeast, and 970 covers Fort Collins, Boulder County's northern edge, and the entire Western Slope.
Can I port my existing Colorado number to Tonet?
In almost every case, yes. If your current carrier issued the number and it's active, we can port it over. Keep the number, change the bill.
Does Tonet work for businesses with crews in the mountains?
It works anywhere there's cell service or wifi. Calls route through the mobile app or a desk phone, so a Vail-based plumber and a Boulder office can share the same business line.
How much does a Colorado business number cost?
Plans start at $10 per user per month, billed daily, with no contract. Extra numbers run $2.50 per month each, so you can grab a 303 and a 970 without doubling your bill.
Sound local from Durango to Denver
Spin up a Colorado number in a few minutes and start taking calls today.
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