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Colorado

303 area code numbers for Denver, CO

Get a local 303 business number that rings any phone. Included in a plan from $14.95 a month; extra local numbers $5 a month, minutes shared, no setup fee.

  • No activation fee
  • No contract
  • Cancel at any time

Kall8 provides local business numbers in the 303 area code, which serves Denver, Boulder, Aurora, Lakewood in Colorado. Your first 303 number is included in a plan from $14.95 a month with 750 minutes, call recording and analytics; extra numbers are $5 a month. The number rings any phone and activates online in minutes.

By the Kall8 team, Dial800 Telecom LLC Last updated Prices in USD, plus taxes and fees

About the 303 area code

Area code 303 covers Denver and Boulder, Aurora, Lakewood, Littleton in Colorado in service since 1947. It shares its territory with the 720, 983 overlays, so a 303 number is the one callers recognize as the original. Denver's original code; 303 numbers are scarcer than the 720 overlay.

A 303 number on your website, ads and vehicles tells Denver customers you are local, and Kall8's call analytics show you how many of them call from each number. Route the number to your cell, your office or a Kall8 Phone user, add forwarding rules for after hours, and record calls for training.

What the number includes

  • Rings any phone; change the destination any time
  • Call recording, analytics and forwarding rules
  • Voicemail to email and the Kall8 app
  • Texting after 10DLC registration
  • Minutes shared with every number on the account

Nearby area codes in Colorado

Availability

Inventory changes daily. Run the search above to see the 303 numbers available right now; the results are live.

Plans for a 303 number

Starter

One number that rings any phone

$14.95/mo

or $11.96/mo billed annually (save $35.88)

$0 activation · plus taxes and fees

750 minutes included every month

  • 1 toll-free or local number included
  • Call recording included
  • Call analytics and reports
  • Forwarding rules and schedules
  • Voicemail to email
  • Mobile and desktop apps
Choose Starter

No contract · cancel at any time

Pro

For teams that live on the phone

$49.95/mo

or $39.96/mo billed annually (save $119.88)

$0 activation · plus taxes and fees

2,500 minutes included every month

  • Everything in Business
  • Business texting: 1,000 messages a month
  • Call recording included
  • Call analytics and reports
  • Forwarding rules and schedules
  • Mobile and desktop apps
Choose Pro

No contract · cancel at any time

Minutes beyond a plan's monthly allowance are billed per minute. Usage pricing

All plans, add-ons and the calculator · Toll-free vs local

303 number questions

Search the 303 area code on this page, pick an available number, choose a plan and pay online. The number is active immediately and rings whatever phone you point it at. No setup fee.

Your first number is included in a Kall8 plan from $14.95 a month (750 minutes, recording and analytics included). Extra local numbers are $5 a month each and share the minutes. Kall8 Phone users get a local number included at $19.95 for the first user.

No. A 303 number rings any phone anywhere: a cell in another state, an office, or a Kall8 Phone user in the app. Businesses use it to give Denver customers a local number to call.

Yes, after 10DLC registration, which Kall8 submits with you; it usually completes within a few business days.

Yes. Submit the online Letter of Agency with a copy of your current bill; there is no port-in fee and most local ports complete in five to fourteen business days.

Get your 303 number

Search a number, pick a plan and you are live in minutes. No activation fee, no contract, cancel at any time.

Questions? Talk to a person.

Support is available 24/7, US-based. Sales can walk you through plans, porting and Teams setup.