Area Code 667
Baltimore, MD — Maryland
Area code 667 serves Baltimore and Maryland. Get a local 667 number to build instant presence in this market.
Introduced in 2012 as a second overlay over the 410 and 443 region when Baltimore's number pool ran short. It cemented the metro's multi-code, ten-digit dialing landscape.
State
Maryland (MD)
Capital: Annapolis
Time Zone
ET
Eastern Time (ET)
Region
Northeast
US Census region
Code Type
Overlay
Added for capacity
Where does area code 667 cover?
Area code 667 serves communities across Maryland. Cities below represent the primary coverage area per the NANP.
- Baltimore
- Annapolis
- Towson
Maryland phone number landscape
Maryland's area codes cover Baltimore's biotech corridor, Montgomery County's pharmaceutical hub, and the Eastern Shore — all within commuting distance of Washington DC.
Number format
When dialing from outside the US, prefix with +1. Within the US, dial all 10 digits including the area code.
History of Area Code 667
Introduced in 2012 as a second overlay over the 410 and 443 region when Baltimore's number pool ran short. It cemented the metro's multi-code, ten-digit dialing landscape.
Why get a 667 area code number?
A local 667 number gives your business a genuine connection to the Maryland market — without the overhead of a physical location.
Local Market Access
Reach Baltimore customers and businesses with a familiar local number. Annapolis blends state-government work with a yacht-brokerage and marine-trades economy on the Chesapeake Bay. Sailmakers, boatyards, and maritime-insurance agents increasingly answer on 667 lines as older codes fill up.
Professional Credibility
A 667 number anchors your business in Baltimore and Maryland, giving clients and partners a recognizable local point of contact that builds immediate professional trust.
Higher Answer Rates
Local area codes are far less likely to be blocked. A 667 number keeps your outreach out of the spam folder.
Flexible Operations
Start with one 667 number and add more as you grow — all managed from a single letsdial dashboard.
How to obtain a 667 phone number.
Step 01 · Sign up
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Benefits of a local Maryland number
A 667 area code tells Maryland customers you're local and easy to reach.
- Local 667 numbers get answered more often than toll-free or out-of-state calls.
- Build local trust and brand recognition without a physical office.
- Keep your personal number private with a dedicated 667 business line.
Why local numbers win
Frequently asked about 667
Area code 667 covers Baltimore, Annapolis, Towson in Maryland. It is an overlay code, meaning it serves the same geographic area as an existing area code in the region.
Ready to call Maryland your market?
Get a local 667 number for your business in minutes. No contracts, no hardware — just a trusted local presence in Maryland from day one.
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