MARYLAND · AREA CODE GUIDE
667 area code location: Baltimore and Annapolis, Maryland
- Local date and time
- Eastern Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 667 area code map
A printable area code 667 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
667 area code at a glance
- State
- Maryland
- Primary cities
- Baltimore, Annapolis, and Salisbury
- Established
- Population
- Largest community: Baltimore, 569,997 (2025)Not an area-code population.
- Prefixes in service
- 443 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
Parent code: 443.
New code planned: No, as of 22 September 2026.
Time zone
- Eastern Time
- Standard time UTC−05:00
- Daylight saving time UTC−04:00
Counties and cities covered
667 numbers are issued across 102 communities. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): Cecil County, Caroline County, Carroll County, Queen Anne's County, Kent County, Talbot County, Wicomico County, Dorchester County, Worcester County, Harford County, Somerset County, Anne Arundel County, Baltimore city, and Calvert County.
- Baltimore
- Annapolis
- Salisbury
- Westminster
- Aberdeen
- Easton
- Elkton
- Havre De Grace
- Cambridge
- Taneytown
- Ocean City
- Hampstead
- Chestertown
- Berlin
- Denton
- Delmar
- Centreville
- Sykesville
- Perryville
- North East
- Princess Anne
- Federalsburg
- Rising Sun
- Crisfield
- Snow Hill
77 more communities
- North Beach
- Hurlock
- Greensboro
- New Windsor
- Ridgely
- Trappe
- Rock Hall
- Saint Michaels
- Willards
- Union Bridge
- Church Hill
- Chesapeake City
- Queenstown
- Sharptown
- Cecilton
- Preston
- Port Deposit
- Oxford
- Millington
- Galena
- Sudlersville
- Vienna
- Hillsboro
- Arbutus
- Armiger-Gibson Island
- Bel Air
- Bishopville
- Brooklyn Park Linthicum
- Cardiff
- Catonsville
- Chase
- Churchville
- Cockeysville
- Columbia
- Crofton
- Darlington
- Deal Island
- Dundalk
- Edgewood
- Elkridge
- Ellicott City
- Essex
- Fallston
- Fork
- Glen Burnie
- Glenwood
- Jarrettsville
- Marion
- Millersville
- Nanticoke
- Odenton
- Parkton
- Parkville
- Pikesville
- Pocomoke
- Prince Frederick
- Randallstown
- Reisterstown
- Severn
- Severna Park
- Sherwood Forest
- Silver Run
- Smith Island
- Solomons
- Sparks Glencoe
- Sparrows Point
- Stevensville
- Still Pond
- Tilghman
- Towson
- Warwick
- Waterloo 236
- Waterloo 238
- West River
- Wingate
- Woodlawn
- Worthington
Notable places in 667
| Place | Where | What it is |
|---|---|---|
| Johns Hopkins University | 3.3 km from Baltimore | University, 39,148 12-month enrollment (2023–24) |
| Baltimore/Washington International Thurgood Marshall Airport | 5.3 km from Severn | Commercial airport, 13,221,461 enplanements (2024) |
| United States Naval Academy | 2.1 km from Annapolis | University, 4,671 12-month enrollment (2023–24) |
| University of Baltimore | 0.8 km from Baltimore | University, 3,975 12-month enrollment (2023–24) |
| Aberdeen Proving Ground | 6.3 km from Aberdeen | US Army installation |
| M&T Bank Stadium | 2.7 km from Baltimore | Stadium |
| Walters Art Museum | 0.7 km from Baltimore | Museum |
| Oriole Park at Camden Yards | 2.0 km from Baltimore | Stadium |
| Baltimore Museum of Art | 3.0 km from Baltimore | Museum |
| Fort George G. Meade | 5.2 km from Severn | US Army installation |
Also serving this area
Questions about 667
Where is the 667 area code?
667 is in Maryland. Its numbers are issued in Baltimore, Annapolis, Salisbury, and 99 other communities.
What time zone is area code 667 in?
667 is in Eastern Time. Daylight saving time is observed.
Is 667 an overlay?
Yes. 667 was added as an overlay on 443 on 24 March 2012.
What cities are in the 667 area code?
Baltimore, Annapolis, Salisbury, Westminster, and Aberdeen, and 97 other communities.
What state is area code 667 in?
Area code 667 is in Maryland.
What counties are covered by area code 667?
Area code 667 covers communities in Cecil County, Caroline County, Carroll County, Queen Anne's County, Kent County, Talbot County, Wicomico County, Dorchester County, Worcester County, Harford County, Somerset County, Anne Arundel County, Baltimore city, and Calvert County.
Is 667 a toll-free area code?
No. 667 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 667, answered by an AI agent
A local number for Baltimore, Annapolis, and Salisbury, Maryland, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.