303 Area Code

Get a 303 Area Code Phone Number in Denver, Colorado Instantly

Unlock the power of localization for your business with multiple personal and business 303 area code phone numbers. Obtain vanity numbers, local numbers, and more, all from the convenience of your location.

Establish your business as a reputable and reliable option for consumers in Colorado's northern region
Enjoy the benefits of instant activation and easy cancellation
Ability to synchronize communication across multiple devices.
Get excellent flexibility and scalability
Cutting-edge features for employee productivity and customer experience.
303 area code location

Own 303 Area Code Phone Number

Select numbers :
  • Call
    Call
  • SMS
    SMS
  • MMS
    MMS

Area Code 303 Location: Where is 303 Area Code Coming From?

Area code 303 is located in Denver and Colorado, which was introduced as Colorado area code in 1947. It is the original area code for Mile High City along with other cities like Boulder, Golden, and front range mountains to the west regions like Idaho Springs.
It serves the central Colorado, including cities such as Denver, Aurora, Westminster, Lakewood, Boulder, and surrounding areas.

Below is the tabular illustration of the top 30 locations (based on the population) served or covered by area code 303 in Colorado.

City/Town County TimeZone
Denver, CO Adams Mountain
Aurora, CO Adams Mountain
Lakewood, CO Jefferson Mountain
Thornton, CO Adams Mountain
Arvada, CO Adams Mountain
Westminster, CO Adams Mountain
Centennial, CO Arapahoe Mountain
Boulder, CO Boulder Mountain
Highlands Ranch, CO Douglas Mountain
Longmont, CO Boulder Mountain
Broomfield, CO Broomfield Mountain
Castle Rock, CO Douglas Mountain
Commerce City, CO Adams Mountain
Parker, CO Douglas Mountain
Littleton, CO Arapahoe Mountain
Northglenn, CO Admas Mountain
Brighton, CO Admas Mountain
Ken Caryl, CO Jefferson Mountain
Dakota Ridge, CO Jefferson Mountain
Englewood, CO Arapahoe Mountain
Wheat Ridge, CO Jefferson Mountain
Lafayette, CO Boulder Mountain
Columbine, CO Arapahoe Mountain
Golden, CO Jefferson Mountain
Louisville, CO Boulder Mountain
Sherrelwood, CO Adams Mountain
Erie, CO Weld Mountain
Welby, CO Adams Mountain
Greenwood Village, CO Arapahoe Mountain
Superior, CO Boulder Mountain
Show more  show less

How to buy an area code 303 phone number?

To buy a 303 area code number, sign up with KrispCall; go to settings > My Number > Add New Number > Select USA > Advanced Filter > Enter 303 and match to the first part of the number > Click Search. Then choose your 303 number, make payment & start making & receiving calls and texts after the number activation.

area code 303 cities

303 Area Code History – Where Does a 303 Area Code Originate?

In 1947, 303 area code is an 86 original area code introduced by AT & T and the Bell system. In 1988, it was first introduced and then subsequently split to create the 719 area code. In 1995, another split occurred, resulting in the 970 area code. Later in 1998, the 303 area code was overlaid with the 720 area code, making it an overlay.

This means that the same geographical area is now served by multiple area codes: 303 and 720. This allows more phone numbers to be assigned in the same geographic area.

Why Choose 303 Area Code Number for Business?

Establish a local presence in Denver, Colorado and unleash the power of cutting-edge communication features with a 303 area code number. Deliver exceptional customer experience while capitalizing on local markets.

Establish a local presence in the Colorado region:
Establish your business as a local brand with 303 local numbers in Denver, Jefferson, Adams, Arapahoe, and Boulder counties, regardless of the base of your business operation. Show them that you are a part of their community, working to serve them better than your competitors.
Elevate your acceptance rate and boost sales:
Improve your call acceptance rate in the local market using 303 area code local and custom vanity numbers. Ensure better performance rates and productivity of your employees, and more importantly, deliver exceptional customer experience to boost your sales.
No special equipment is required:
303 phone area code numbers do not require additional devices to get started. You can effectively utilize what you have at the moment, like smartphones, laptops, desktops, etc., and go on with your business communication. Downloading the KrispCall application is all it takes.
Powerful standard PBX features:
Take advantage of every PBX feature with 303 telephone numbers from the KrispCall mobile app. Get hold of enhanced calling features, like Number Sharing, Call Blocking, Call Forwarding, Call Transfer, Phone Trees (IVR), and many more for efficient business call management.
303 area code number

Access Powerful VoIP Features with your 303 Area Code Business Phone Number

Invest in 303 area code business phone numbers to streamline communication among your team members and customers. These numbers can benefit businesses of all sizes and offer a variety of features to enhance the customer experience.

Group 19297
Global Calling

Expand your customer base worldwide with Krispcall global calling features for making instant calls across borders.

Call on Hold
Calls On Hold

Keep the calls on hold to get further support/assistance for the clients whenever necessary, without losing their calls.

Group-19317-1
Call Transfer

Instantly route customer calls to another line or agent who can better deal with their queries. Don’t keep your clients waiting

Group-19288
Shared Number

Number-sharing option allows you to receive calls across multiple devices. Improve your customer response by eliminating missed calls.

Group-19312
Call Forwarding

Instantly route business calls to your cellphones and landlines whenever necessary. Make sure you are not missing out on clients when not in the office.

Call Recording icon
Call Recording

Record calls to monitor client requests and team performance. Use recorded calls as a guide for improving customer service and employee training.

Group-19312 (1)
Call Filters

Narrow down the call logs with Krispcall call filters. Efficiently screen through your incoming, outgoing, and missed calls.

Group-19315 (1)
Voicemail

Don’t lose touch with your clients when you are unavailable. Allow clients to drop you a voicemail so their queries never go missing.

DND mode for Agents
DND mode for Agents

Switch to the Do Not Disturb mode and automatically shift incoming calls to voicemails to increase your focus on the work at hand.

Call Analytics Icon
Call Analytics

Optimize your marketing campaigns, call handling and team performance with insight driven phone call analytics data.

Group-19315 (2)
Contact Tags

Sort clients and teams using the contact tags feature. Tag contacts to customize your dashboard for better navigation.

Group-19311 (1)
Call History

View the entire conversation history, incoming and outgoing call logs, and messages in one unified dashboard.

Group-19315 (3)
Caller ID

Set location-based caller IDs for outbound international calls. Localize your number to improve the chances of reaching potential customers in new markets.

Group-19318-1
Unified Callbox

Connect with your team and customers instantly without switching apps, using an all-in-one dashboard that handles calls, SMS messages, voicemails, and multiple other options.

Group-19318-1
Custom Greeting

Enhance the calling experience for your clients. Record personalized greeting messages, so your customers feel comfortable during calls.

Areas of Application for Area Code 303 Phone Number

Practical ways businesses use 303 phone area code numbers.

Businesses can incorporate 303 phone area code numbers to localize their business in Colorado and surrounding areas while streamlining communication for enhanced business productivity and unparalleled customer experience.

personal use

Businesses can use 303 area code phone numbers to establish a local presence in Denver, Boulder, and other areas of Colorado, and improve their call acceptance rate in the local market.

734 area code for business phone systems

Companies can use 303 area code phone numbers to provide exceptional customer service by using features such as call transfer, call whisper, and call recording.

Cloud call center 786 phone number

Businesses can target specific regions and demographics by using 303 area code phone numbers to improve their marketing campaigns.

For proper marketing and sales

Individuals can use 303 area code phone numbers to establish a local presence in Colorado and make it easier for friends and family to reach them.

Other areas of application

Companies or entrepreneurs can use 303 area code phone numbers to set up a virtual office in Colorado, allowing them to conduct business and communicate with clients, regardless of their physical location.

Other areas of application

Companies with remote teams can use 303 area code phone numbers to keep all team members in sync by sharing a single number across multiple devices and teams.

Other areas of application

Small businesses can use 303 area code phone numbers to improve their productivity and custom.

How to get a 303 Area Code Phone Number Online?

Purchasing area code 303 Phone Numbers takes only a few minutes with KrispCall. In minutes, you can follow the steps to obtain an area code 303 number. All you need is a valid payment detail.

Select the USA from the country list and enter 303 in the advanced filter & search.
Pick a number from the list and purchase the number.
Make payment after you've selected the number.
Submit your documents for verification if required.
303 area code phone number

Port Your 303 Area Code Number to KrispCall Cloud Telephony

KrispCall makes it easy for you to port your existing 303 area code numbers to their service, ensuring a seamless transition for your business. During the process, you’ll have access to an additional number that will allow you to continue communicating without interruption. Your outbound calls will appear as your usual number, and all inbound calls will be redirected to the temporary number provided by KrispCall. This allows you to maintain your business communication without any disruption.

Nearby Area Codes

Area Code
Grand Island, NE 308
Albuquerque, NM 505
Las Cruces, NM 575
Lawton, OK 580
Colorado Springs, CO 719
Fort Collins, CO 970

Frequently Asked Questions

Didn’t find the Answer you were looking for?
Visit our Help Center or Contact Support

Area code 303 is a telephone area code that serves the central Colorado region, including major cities such as Arvada, Denver, Aurora, Westminster, Lakewood, Boulder, and Centennial. It was created as an overlay for the 720 area code, covering multiple counties, including Denver, Jefferson, Adams, Arapahoe, Boulder, Sedgwick, Gilpin, Eagle, Broomfield, Clear Creek, Elbert, Douglas, El Paso, Park, and Weld. 

Country USA
State Colorado
Major Cities Denver, Aurora, Westminster, Lakewood, Boulder, Brighton, Deer Trail, Keenesburg, Englewood, Golden, Fort Lupton, Henderson, Idaho Springs, Hudson, Littleton, Lyons, Longmont, and Sedalia
Time Zone Mountain Timezone (MT) 
Telephone Number Format +1 (303) XXX-XXXX 

The 303 area code is located in central regions of Colorado, including major cities such as Denver, Aurora, Westminster, Lakewood, Boulder, and surrounding areas. 

Most cities and communities of the 12 counties in central regions of the US state of Colorado have the 303 Area Code. Brighton, Deer Trail, Keenesburg, Englewood, Golden, Fort Lupton, Henderson, Idaho Springs, Hudson, Littleton, Lyons, Longmont, and Sedalia, are major cities under its service.

No, the area code 303 does not belong to New Jersey. Area code 303 is in Denver, Jefferson, Adams, Arapahoe, Boulder, Sedgwick, and many more counties. Area codes for New Jersey include 201/551, 609/640, 732/848, 856/973, 908, and 973.

The 303 area code comes from the split of the 719 area code. In 1995, another split occurred, resulting in the 970 area code. Later in 1998, the 303 area code was overlaid with the 720 area code, making it an overlay. 

This means that the same geographical area is now served by multiple area codes: 303, and 720. This allows more phone numbers to be assigned in the same geographic area.

The time zone of the 303 follows the Mountain Time Zone and Mountain Standard Time.

The 303 area code phone number support text messages depending on the the features offered by a service provider that affect the ability to send text messages. It is, however, possible to share multimedia messages, text messages, and phone calls with reliable phone number providers such as KrispCall 303 area code number.

303 area code telephone area codes are mostly legitimate. But with technology advancements, creating unique telephone numbers is easier than ever. Additionally, some free virtual phone number providers offer 303 scam codes.

Therefore, you should always purchase a legitimate number from a reputable provider like Krispcall.

Those who have a 303 area code phone number can make outbound calls from their cell phones. However, the calls may be legitimate or scams. Therefore, you should check the caller’s online presence and do some background checks using their contact information.

The zip code of the 303 area code ranges from 80001 – 80643. There are different zip codes for different cities in the 303 Colorado area code. The area code of Arvada(Jefferson County) is 80001.