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

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.
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.
When you choose a local number from DialLink, you're getting more than just digits:
Automate routine calls, appointment booking, and more
Get insights into calls and improve follow-ups
Customize call flows, routing, and voicemail rules
Answer calls on mobile, desktop, web app, or desk phones
Get started in minutes with no IT experts required
Get AI-generated suggestions and send replies instantly
Area code 301 serves western and central Maryland, covering cities like Rockville, Gaithersburg, Frederick, and Hagerstown.
The 301 area code is used in cities such as Rockville, Gaithersburg, Frederick, Hagerstown, and surrounding areas in Maryland.
Area code 301 is located in the state of Maryland, in the Mid-Atlantic region of the United States.
The 301 area code is overlaid by 240 and 227, which cover the same geographic region in Maryland.
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.