Denver metro · Colorado
Get a local 720 area code phone number for your business
A cloud communication platform like dialnote works on the phone you already own, with an AI agent that answers when you can't.
Available 720 Numbers
0 AvailableHow to get a 720 phone number
- 1Search 720 availability
- 2Reserve it at signup
- 3Live in minutes
Search available 720 numbers above, pick the one you want, and it's reserved when you sign up. Your number goes live in minutes on the dialnote app, with plans from $19/mo and a 10-day free trial to test calls, texting, and the AI voice agent.
Built by the team behind SmartReach.io5,000+ businesses · 10 years helping companies talk to customers
Why does a 720 number matter in Denver metro?
The 720 area code covers Denver and its metro, overlaying 303 across Denver, Boulder, Aurora, and the surrounding Front Range.
Denver's mix of startups, outdoor brands, and trades all compete for the same local customers. A 720 number reads as Front Range without explanation, whether you're quoting a roof in Aurora or onboarding a client in LoDo.
Plenty of businesses here still carry prized 303 numbers. 720 is the same footprint with far better availability, and your callers treat the two as one and the same.
People are nearly 4x more likely to answer an unknown local number than a toll-free one (27.5% vs 7%). Software Advice consumer survey, 2014.
Local businesses of every kind
Home services
“Water heater's leaking, can you come today?”
If your business lives on inbound calls, a local 720 number wins more of them.
What can a 720 business phone number do?
On dialnote it's a full AI phone system, not a bare line, all on the app you already own.
Answers every call, even the ones you miss
A 24/7 AI voice agent picks up, answers questions, and books the appointment straight to your calendar, so an after-hours 720 call becomes a job on the books instead of a lost lead.
Meet the AI voice agent →
Mike Torres · first-time caller
(720) 555-0134 · 9:42 PM, after hours
AI front desk
“I can get someone out Tuesday morning. Does 9am work?”
With an AI agent · Team and up
One number, the whole team
Share your 720 line across everyone with no per-user pricing.
Unlimited users →One shared 720 line
Priya, Devon & Ana added, bill unchanged
Runs on your phone
Your 720 line rings through the app, no landline or desk phone.
See the mobile app →Your own phone
No desk phone, no hardware
dialnote app
Rings as (720) 555-0142
Text from your 720 number
Customers text the same local number they call.
Business texting →Every call to the right person
Simple call menus and routing send each call where it belongs.
Menus & routing →Incoming: (720) 555-0163
“Press 1 for scheduling…”
Your 720 number is included
One flat price for your whole team: your 720 line, unlimited users, AI agents, and call flows.
$49/mo per team
Add 2 people or 20. Same bill.
- Unlimited users: contractors, seasonal staff, whole departments
- AI front desk included
- Keep your number, we port it for you
No credit card required · Just you? Solo is $19/mo for one user.
Everything on your 720 line
Included from day one of the trial:
- Local 720 caller ID on every call
- Inbound and outbound calling
- AI voice agent answers missed calls
- Menus and routing to the right person
- Shared inbox for calls, texts, voicemail
- Runs on the dialnote app, no hardware
One shared pool of calling minutes · AI minutes billed as you use them · Prices in USD, regional pricing on the pricing page
720 area code questions, answered
Claim your 720 number today
Search availability, reserve your number at signup, and test everything free for 10 days.
The 720 area code at a glance
- Region
- Denver metro, Colorado
- Major cities
- Denver, Aurora, Boulder, Lakewood, Littleton
- Time zone
- Mountain (MT)
- Overlay
- None
- Introduced
- 1998, overlay of 303
Source: NANPA area-code records · Facts verified July 2026