Business phone numbers in Colorado
306,000+ local numbers available now, from Colorado Springs, Grand Junction, Fort Collins and across the state. Pick one, and it's ringing in minutes.
- 306,000+
- numbers available
- 5
- area codes with stock
- 163
- local calling areas
- Free
- porting, any volume
Find your Colorado number
These are real numbers available right now. Pick a town to narrow it down, or search for a pattern or vanity word.
Showing live inventory
Every number here stays on the open market until someone claims it — we can't hold one for you. We acquire it for your account right after you sign up, subject to availability, and let you know when it's ready.
Your first number comes out of your $25 — $3.50 for the first month, leaving $21.50 to spend on calls. Nothing to pay, no card.
Doing business by phone in Colorado
Most of Colorado's population lives along the Front Range, from Fort Collins through Denver and Boulder to Colorado Springs and Pueblo. West of the divide, resort towns and the Western Slope run on tourism, energy and agriculture.
- Capital
- Denver
- Largest metros
- Denver, Colorado Springs, Aurora, Fort Collins
- Time zone
- Mountain
- Area codes with stock
- 303, 720, 983, 719, 970
- Inventory checked
- November 4, 2026
Colorado area codes with numbers in stock
Counts are from our carriers as of November 4, 2026. Each code lists a few of the towns it reaches.
Colorado towns with the most numbers
Tap a town to see its numbers. Every other town in Colorado is in the full search.
Sell phone service to Colorado businesses under your own name
SimuWave is the carrier behind it. You brand it, price it and own the customer, and we handle the numbers, the network, E911 and the paperwork. Same published rates in every state.
Colorado phone numbers: common questions
What area codes can I get in Colorado?
Right now we have numbers in 5 Colorado area codes: 303, 720, 983, 719, 970. The most stock is in 303, which reaches Denver, Longmont, Georgetown. Stock changes daily, so search for the exact town you want.
Can I get a number in a specific Colorado town?
Yes. Numbers are tied to a local calling area, so pick the town your customers are in and the number reads as local to them. Colorado Springs, Grand Junction, Fort Collins have the deepest stock right now. Search above, or open the full search with every town in Colorado.
Can I keep my existing Colorado business number?
Yes. Porting is free, in any volume. Keep the number your customers already know and point it at SimuWave. It can ring desk phones and cell phones at the same time.
How fast can a Colorado number be working?
A new number is live in minutes: choose it, attach a call flow, and it rings. Ports take longer because the current carrier has to release the number, and the number keeps working on the old service until the port completes.
What time zone should I set for Colorado business hours?
Colorado is on Mountain time. Set your business hours once in the call flow, and after-hours calls go to voicemail, an answering service or a cell phone automatically.
States next to Colorado
Photo: Maroon Bells, by Rhododendrites (Wikimedia Commons), CC BY-SA 4.0. Resized.