Skip to content

Expand Your Reach with a 443 Area Code Virtual Number in Maryland!

Want to build a solid local presence in Maryland? A 443 area code phone number is your gateway to connecting with customers in vibrant cities like Baltimore, Columbia, and Glen Burnie, along with the neighboring communities.

Endorsed by top industry leaders

Trusted by industry experts for excellence and innovation.

What is area code 443?

The 443 area code is located in eastern Maryland, including the Baltimore metropolitan area and the Eastern Shore. It was established on June 1, 1997, as an overlay for area code 410 in Maryland.

This metropolitan area includes major cities like Baltimore, Dundalk, Ellicott City, Columbia, Glen Burnie, Towson, Severn, and Annapolis, the capital city. Area code 443 also covers 16 counties: Dorchester, Carroll, Calvert, Harford, and Caroline, along with 11 others. The total population of this area code is 1,592,514.

Baltimore is the largest city in Maryland, with a population of 556,723, which includes permanent and temporary residents.

The 443 area code is located in the Eastern Time Zone (ET), which is UTC-5 during standard time and UTC-4 during daylight saving time.

Country

USA

State

Maryland

Major City

Baltimore

Time Zone

Eastern Time Zone(EST)

Telephone Number Format

+1 (443)-287-XXXX

Example of 443 phone number

+1 (443)-287-4567

Zip Code

2088 – 21921

How to get a 443 Area Code Phone Number?

You can purchase a 443 area code phone number from a VoIP service provider like Dialaxy. You can follow these steps.

  • Sign up on the official Dialaxy website or mobile app.

  • Log in to your account and navigate to the dashboard.

  • Select “My Number” from the “Portal” menu.

  • Click on “Buy Number.”

  • Choose the US as your country and select the 443 area code from the list.

  • Complete the payment and submit any required documents.

How does a 443 Area Code Business Phone Number work?

The business phone number 443 works the same way as any United States phone number works. The 443 area code is part of the North American Numbering Plan (NANP). As with any other U.S. phone number, To make a call to a 443 number, the caller must dial the full 10-digit number, which includes the 443 area code.

For example, to contact Johns Hopkins Medicine, you can dial +1-443-287-4748, where +1 is the country code for the United States. The 443 is the area code that routes the call to the Baltimore region. The 287 is the eastern code that forwards the call to the service provider. The final 4 digits, 4748, represent the subscriber number that identifies Johns Hopkins Medicine.

Who’s doing business in the 443 Area code?

A variety of companies, including tech firms, start-ups, research centers, universities, and hospitals, are doing business in the 443 area code. Such a vibrant business environment is what makes 443 numbers an essential tool for any business that wants to take advantage of proximity to this rich regional market.

The 443 area code serves a wide range of businesses across industries such as healthcare, education, technology, and retail. Some notable organizations include:

Local Numbers
Healthcare

Johns Hopkins Hospital, University of Maryland Medical System

Mobile Phone Numbers
Education

Loyola University Maryland, University of Maryland Baltimore County (UMBC)

Toll-free Numbers
Technology

Northrop Grumman, CyberCore Technologies

Toll-free Numbers
Retail

Arundel Mills, White Marsh Mall

Toll-free Numbers
Hospitality

Marriott Hotels, Chesapeake Bay Restaurants

Why Does Your Business Need a 443 Area Code Number?

Local Numbers
Establish a Local Presence in Maryland

A 443 area code number helps your business build trust and rapport with local customers in Baltimore and beyond.

Mobile Phone Numbers
Improve Customer Engagement

Show customers your commitment to the local market and make it easier for them to reach you.

Toll-free Numbers
No Additional Hardware Needed

Get started instantly on your existing devices via the Dialaxy app—no extra equipment required.

Toll-free Numbers
Advanced PBX Features

Enjoy features like call forwarding, voicemail, IVR, and unified communications to streamline your business operations.

Toll-free Numbers
Build Credibility in Maryland

Position your business as a trusted provider in Maryland by using a local 443 number.

Toll-free Numbers
Scale Your Business Seamlessly

Expand your reach within Maryland and nationally without compromising your accessibility to local customers.

Enjoy 100+ Dialaxy’s features with local phone number

Call, SMS, & Contact in one easy to use app.

Phone Numbers

Expand your reach with Virtual Phone Numbers

International Numbers: Establish a local presence of your business with our international phone numbers .

Toll Free Numbers: Elevate your sales strategy and drive business growth with Toll Free Numbers.

Multiple Phone Numbers: Use multiple phone numbers in one single dashboard.

Global Calling

Connect globally with effortless calls

Extended Reach: Enables businesses to expand their market by reaching international customers.

Flexibility: Allows employees to make international calls from anywhere.

Seamless Communication: Ensures clear and reliable communication with international contacts.

SMS

Enhance communication with SMS capabilities

A2P 10DLC: Register your number in A2P 10DLC to send sms within US and Canada.

Schedule SMS: Schedule SMS as per your customer timezone so they don’t miss an update.

Personalised Messaging: Personalise SMS depending upon your user and its behaviour.

Voicemail

Easily manage messages with Voicemail

Voicemail Recording: Personalized voicemail greetings for different departments

Message Management: Messages are stored in the cloud, allowing for easy access.

Access and Playback: Listen to voicemails from any internet-connected device.

Number Sharing

Enhance collaboration with effortless Number Sharing

Unified communication: With number sharing, multiple devices can use the same phone number.

Convenience: Seamlessly switch between devices without missing calls or texts.

Cost Efficiency: Reduce costs by eliminating the need for multiple phone plans.

Contacts

Effortlessly manage your contacts

Add and delete contact: Add and delete new contacts as the business grows.

Centralized Information: Stores all relevant contact details in one place, making it easy to access and manage.

Improved Organization: Helps organize contacts into groups or categories, enabling better management.

Frequently Asked Questions

The 443 area code is the telephone area code in the North American Numbering Plan (NANP), which covers the Baltimore metropolitan area and the Eastern Shore, including counties like Dorchester, Carroll, Calvert, Harford, and 11 others.

The 443 area code is located in eastern Maryland, which includes major cities like Baltimore, Annapolis, Columbia, Ellicott City, and Dundalk.

The 443 area code time zone is in the Eastern Time Zone (ET), which is UTC-5 during standard time and UTC-4 during daylight saving time.

The zip code of 443 area code is the code that ranges from 20688 to 21921, spanning across 16 counties in Maryland.

No, the 443 area code is not located in California. The 443 area code is an overlay area code that covers the eastern and central parts of Maryland.

The 443 area code is located in the state of Maryland, primarily covering the eastern parts of the state, including the city of Baltimore.

Absolutely! VoIP providers like Dialaxy make it easy to secure a 443 area code number for your business needs.

Starting Just at $20/month

100% free to try. Unlimited calling. No contracts.

Also available on

per month

1 User

1 US/CA number

per month

5 Users

3 US/CA number

Stands as a leading Cloud based Contact Center Solution that provides international Virtual Phone Numbers from 100+ countries.

Copyright © 2025 Dialaxy. All rights reserved.

Back To Top