Local Phone Numbers
Maryland
301 Area Code
301 Area Code
Port Your Number or Get a Maryland Overlay Code with DialLink

Establish a Local Presence in Maryland
No Office Needed
Want to reach customers across Maryland and build credibility? A 301 area code phone number instantly signals local trust in Montgomery County, Frederick, Hagerstown, and beyond, even if your team works remotely.
New 301 numbers may be limited, but you’re not out of options. With DialLink, you can port an existing 301 phone number or choose one of its overlays, 240 or 227, which cover the same geographic region. Either way, you’ll gain a local Maryland phone number backed by DialLink’s AI-powered cloud phone system. Our platform combines call management, business messaging, and AI voice automation to give SMBs and startups a professional solution without enterprise-level cost or complexity.
Why Choose a 301 Area Code?
The 301 area code covers a large portion of western and central Maryland, including cities like Rockville, Gaithersburg, Frederick, and Hagerstown. With proximity to Washington, D.C., this region is a major hub for government contractors, healthcare, education, and growing small businesses.
Having a 301 area code number lets you sound local, connect more effectively, and gain the trust of Maryland-based customers and partners.
Get More Than a Local Number
When you choose a local number from DialLink, you're getting more than just digits:
AI Voice Agents
Automate routine calls, appointment booking, and more
AI call tagging & summaries
Get insights into calls and improve follow-ups
Advanced call handling
Customize call flows, routing, and voicemail rules
Work from anywhere
Answer calls on mobile, desktop, web app, or desk phones
Plug-and-play setup
Get started in minutes with no IT experts required
AI-powered business messaging
Get AI-generated suggestions and send replies instantly
Who Can Benefit from a Local Phone Number
Remote teams working with Maryland-based clients
Startups expanding into the D.C. metro region
Professional service providers and healthcare practices
Universities and educational institutions
Choose Your Local Phone Number
Frequently Asked Questions
Where is area code 301?
Area code 301 serves western and central Maryland, covering cities like Rockville, Gaithersburg, Frederick, and Hagerstown.
What cities use the 301 area code?
The 301 area code is used in cities such as Rockville, Gaithersburg, Frederick, Hagerstown, and surrounding areas in Maryland.
Where in U.S. is area code 301?
Area code 301 is located in the state of Maryland, in the Mid-Atlantic region of the United States.
What is the overlay for the 301 area code?
The 301 area code is overlaid by 240 and 227, which cover the same geographic region in Maryland.
What is an overlay area code?
An overlay is an additional area code assigned to the same geographic region as an existing one. It allows more phone numbers to be issued without requiring existing customers to change their numbers.