A used bike or a pair of skis for sale brings strangers to your messages.
Post a 720 number with the photos, set it to Texts only and keep your own number off the ad.
Local 720 numbers
Get a 720 phone number for Denver.
Ask for 720 when you create a number on ExpressNumber, and the number you hand out reads as Denver and the cities around it. Calls ring the phone you already carry, and you burn the number when you are done.
$0 todayLive in about a minute
This is how you get a 720 number.
- Start your 7 days free and open Create a number.
- Type 720 as the area code and give the number a name.
- Hand it out. Calls ring the phone you already carry, and texts land in your inbox.
- Burn it in one tap when you are done. Calls and texts to it stop at once.
9:41
Your numbers
Bike for sale
(720) 555-0125
Texts only
Job hunt
(720) 555-0162
Forwarding
Deck quotes
(720) 555-0199
Forwarding
People ask for 720 when the search is in the Denver metro area.
A job hunt across Denver, Boulder and Longmont hands your number to a lot of recruiters.
Give every application a 720 number. When you have accepted an offer, the other calls have nowhere to go.
Quotes for a roof or a deck in Littleton or Highlands Ranch keep calling for weeks.
Give each contractor its own 720 number. If one keeps calling, burn that number and keep your own out of it.
This is where a 720 number is from.
Area code 720 covers the Denver metro area, the same area as 303.
The numbering administrator and the Colorado Public Utilities Commission name Aurora, Boulder, Brighton, Castle Rock, Columbine, Englewood, Erie, Highlands Ranch, Lakewood, Littleton, Longmont, Thornton, Westminster and Wheat Ridge, in the north-central part of the state.
Denver, CO
Area code 720 and the codes around it, oldest first.
1947
303
Shares the area
1998
720
This code
2022
983
Shares the area
- Denver
- Aurora
- Lakewood
- Boulder
- Longmont
- Thornton
- Westminster
- Littleton
- Englewood
- Highlands Ranch
- Castle Rock
- Brighton
These are the facts about area code 720.
From the public records of the body that runs US phone numbering, read October 21, 2026.
- Place
- Denver, Colorado
- In service since
- 1998
- Local calls are dialed with
- Ten digits
- Shares its area with
- 303 (1947) and 983 (2022)
303 was the original code for the whole state of Colorado, from 1947. 719 was split from it in 1988 and 970 in 1995, and 303 kept the Denver area.
720 was laid over 303 and entered service on June 1, 1998, and local calls in the area are dialed with all ten digits. A third code, 983, followed on June 17, 2022, after the commission approved it on May 21, 2021.
Try it free for 7 days.
Then pick the plan that fits how many numbers you hand out.
Basic
7 days free$9.99/mo
- 5 numbers, one for each site, store or dealer
- 100 forwarded minutes a month
- Burn a number in one tap
- Extra numbers $1 a month each
Pro
7 days free$29.99/mo
- 100 numbers
- 1,000 forwarded minutes a month
- A number per vendor, client or listing
- Extra numbers 50¢ a month each
$0 today. Monthly plans, cancel any time.
People ask these questions about getting a 720 number.
More in the full FAQ.
Create a number in your dashboard, type 720 as the area code and give it a name, such as Bike for sale. It is live in about a minute. You do not need to live in Colorado: calls ring the phone you already carry.
Yes, for taking calls and texts. A snow-shoveling crew, a dog walker or a tutor in Aurora or Lakewood can put a 720 number on the flyer and the website, take the calls on their own phone and burn the number when the season ends.
Yes. 303, 720 and 983 cover the same area, and a local call between them is dialed with all ten digits.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
You get 7 days free and pay $0 today. After 7 days your plan starts: $9.99 a month for Basic or $29.99 a month for Pro. Cancel before then and you pay nothing.
More area codes
Every fact on this page comes from public numbering records.
The state, the dates and the related codes are rows of the North American Numbering Plan Administrator's area code database. The places are from its planning letters and the state’s own pages. Read October 21, 2026.
Put 720 on a number you can burn.
Hand out a number you can burn. Keep the one your family calls.
Try it free for 7 days