Where is area code 720?

Area code 720 is located in Colorado. It covers Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, Commerce City, Denver, Englewood, and Highlands Ranch and 8 more, and serves 24 cities and towns in total.

What cities use the 720 area code?

Cities in the 720 area code include Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, Commerce City, Denver, Englewood, Highlands Ranch, Ken Caryl, Lafayette, Lakewood, Littleton, Longmont, Loveland, Northglenn, and Parker.

What time zone is area code 720 in?

Area code 720 is in Mountain time, the same zone as the rest of Colorado. If you are calling 720 from another zone, check the local hour there before you dial.

Why do other area codes cover the same places as 720?

Area code 720 shares its coverage with 303. These are overlay codes: when the numbers in one code run out, a new code is added over the same geography rather than splitting the region, so neighbours can end up with different area codes at the same address.

How do I get a 720 phone number for my business?

OrderToAI can provision a 720 business number for you during signup, and its AI answers every call to it 24/7. You can also keep your existing number and forward it, so customers keep dialing the number they already know.

Do I need to be located in Colorado to use a 720 number?

No. A 720 number can be used from anywhere, which is why businesses serving Aurora, Boulder, Brighton, Broomfield, and Castle Rock and 14 more often choose one even when their staff are elsewhere.

Area code 720

The 720 area code belongs to Colorado. Places inside it include Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, and Commerce City and 11 more. It serves 24 cities and towns in total. The same area is also served by 303, which overlay 720 on the identical geography rather than covering a different one. The area observes Mountain time, which is worth checking before you return a call from an unfamiliar 720 number. Colorado is served by 4 area codes in total. 720 is an ordinary geographic code rather than a toll-free or premium one, so a call from it is usually a normal local call, though caller ID can be spoofed on any area code. Businesses serving Brighton, Broomfield, Castle Rock, Castlewood, and Columbine and 12 more often choose a 720 number so local customers recognise the call and pick up, and a 720 number can be used from anywhere rather than only from inside the area it covers.

State: Colorado
Local time: Mountain time
Places served: 24

Cities and towns in the 720 area code

Area code 720 serves 24 listed places across Colorado, one of 4 area codes covering the state.

Places served by area code 720 in Colorado
Place	State	Area code
Arvada	Colorado	720
Aurora	Colorado	720
Boulder	Colorado	720
Brighton	Colorado	720
Broomfield	Colorado	720
Castle Rock	Colorado	720
Castlewood	Colorado	720
Columbine	Colorado	720
Commerce City	Colorado	720
Denver	Colorado	720
Englewood	Colorado	720
Highlands Ranch	Colorado	720
Ken Caryl	Colorado	720
Lafayette	Colorado	720
Lakewood	Colorado	720
Littleton	Colorado	720
Longmont	Colorado	720
Loveland	Colorado	720
Northglenn	Colorado	720
Parker	Colorado	720

Showing 20 of 24 listed places.

Getting a 720 business phone number

A local 720 number tells customers in Colorado that you are nearby, and local numbers get answered more often than unfamiliar ones. OrderToAI provisions a 720 number for your business and its AI answers every call on it, around the clock, in your own voice and hours. You can also keep the number you already have and forward it instead.

A dedicated 720 number, included in your plan
Answered 24/7, with no after-hours surcharge
Books appointments, takes messages, and texts links your callers ask for
Transfers to you or your team whenever the caller asks for a person

Get a 720 number

See pricing for what a plan costs.

How to get a 720 number for your business

1
Pick a 720 number
During signup you choose the area code you want. Numbers in 720 cover Arvada, Aurora, and Boulder and 17 more and the rest of the 24 places listed above, so customers there see a local number rather than an out-of-town or toll-free one.
2
Tell the AI about your business
You give it your hours, services, and prices once. From then on it can answer what you charge, whether you cover a caller’s neighbourhood, and when you can get there, instead of reading a script.
3
Point your calls at it
Use the new 720 number on its own, or keep the number you already have and forward it. You can forward everything, or only the calls nobody picks up, so your team still answers when they can.
4
It answers, books, and hands off
From the first call it picks up in your business name, books straight into your calendar, texts links a caller asks for, and transfers to you whenever someone wants a person.

How area codes work

What an area code actually is

An area code is the first three digits of a ten-digit North American phone number, and it identifies the geographic region the number was issued in. The system is called the North American Numbering Plan, and it covers the United States, Canada, and twenty other countries and territories. Codes were originally assigned so that the busiest regions got the codes that were fastest to dial on a rotary phone, which is why New York City received 212 and Los Angeles 213.

Why two area codes can cover the same street

When a region runs out of available numbers, the phone system adds capacity in one of two ways. A split divides the region geographically and gives part of it a new code, which forces everyone in that part to change their number. An overlay adds a second code across the same area instead, so existing numbers stay exactly as they are and new numbers get the new code. Overlays are now strongly preferred, which is why neighbours on the same street can have different area codes, and why dialing all ten digits became necessary in overlay regions.

Does an area code still mean the caller is local?

Not reliably. Mobile numbers keep their area code when someone moves, so a 212 number may belong to someone who left New York a decade ago. Number portability means a business can keep its number when it changes carrier or address. And caller ID can be spoofed on any code, which is how scam calls appear to come from your own area. Treat an area code as a strong hint about where a number was issued, not as proof of where the caller is standing.

Choosing an area code for your business

A local area code signals to customers that you are nearby, and local numbers get answered more often than unfamiliar or toll-free ones, particularly for services people expect to be local like plumbing, salons, and restaurants. If you serve one town, take that town code. If you serve several regions, some businesses take a number in each and route them all to the same place. Toll-free codes such as 800 and 844 read as national rather than local, which is useful for a nationwide company and unhelpful for a neighbourhood one.

Questions about the 720 area code

Where is area code 720?: Area code 720 is located in Colorado. It covers Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, Commerce City, Denver, Englewood, and Highlands Ranch and 8 more, and serves 24 cities and towns in total.
What cities use the 720 area code?: Cities in the 720 area code include Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, Commerce City, Denver, Englewood, Highlands Ranch, Ken Caryl, Lafayette, Lakewood, Littleton, Longmont, Loveland, Northglenn, and Parker.
What time zone is area code 720 in?: Area code 720 is in Mountain time, the same zone as the rest of Colorado. If you are calling 720 from another zone, check the local hour there before you dial.
Why do other area codes cover the same places as 720?: Area code 720 shares its coverage with 303. These are overlay codes: when the numbers in one code run out, a new code is added over the same geography rather than splitting the region, so neighbours can end up with different area codes at the same address.
Is a call from area code 720 a scam?: Not by itself. Area code 720 is a normal geographic code assigned to Colorado, covering Boulder, Brighton, Broomfield, Castle Rock, Castlewood, and Columbine and 12 more. Caller ID can be spoofed on any area code, so judge a call by what the caller asks for rather than by the number it came from.
How do I get a 720 phone number for my business?: OrderToAI can provision a 720 business number for you during signup, and its AI answers every call to it 24/7. You can also keep your existing number and forward it, so customers keep dialing the number they already know.
Do I need to be located in Colorado to use a 720 number?: No. A 720 number can be used from anywhere, which is why businesses serving Aurora, Boulder, Brighton, Broomfield, and Castle Rock and 14 more often choose one even when their staff are elsewhere.

Looking for a different code? See all area codes.

An AI that works your phone

What a 720 number comes with

It is not a menu tree and it is not voicemail. It is a real conversation that ends with a booking, an order, or a message in your hand.

Answers every call

Day, night, weekends, holidays. It picks up on the first ring in your business name, and never puts anyone on hold.

Books the job

It checks your real availability and writes the appointment straight into your calendar while the caller is still on the phone.

Texts what they asked for

Your menu, booking page, delivery link, or a quote. The caller gets it on their phone before they hang up.

Wins back quiet customers

It calls the customers you already have when they are overdue, and books them back in. That is the part nobody else does.

Do not take our word for it. Call it.

Hear the AI answer a real call, in a real business, right now. No signup, no card, nothing to install. Most people decide within about thirty seconds of hearing it talk.

Hear it answer a call Start free trial

Set up in about five minutes. Cancel any time.

Front Desk: $99.99/mo
Talk time: $0.49/min
Included: Your own number, nights and weekends at the same rate, no per-call fees, no contract. Full pricing