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.

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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 |
|
| 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.
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Sign up on the official Dialaxy website or mobile app.
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Log in to your account and navigate to the dashboard.
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Select “My Number” from the “Portal” menu.
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Click on “Buy Number.”
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Choose the US as your country and select the 443 area code from the list.
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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:
Healthcare
Johns Hopkins Hospital, University of Maryland Medical System
Education
Loyola University Maryland, University of Maryland Baltimore County (UMBC)
Why Does Your Business Need a 443 Area Code Number?
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.
Improve Customer Engagement
Show customers your commitment to the local market and make it easier for them to reach you.
Enjoy 100+ Dialaxy’s features with local phone number
Call, SMS, & Contact in one easy to use app.
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.