What time zone is area code 443 in?

Area code 443 uses Eastern Time.

What area codes overlay 443?

410 and 667 serve the same area as 443. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.

Is a call from area code 443 a scam?

The area code alone doesn’t tell you. Most calls from 443 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 443 number, let it go to voicemail.

When did area code 443 start?

443 went into service in 1997. It was created from area code 410.

Can a 443 number be outside Maryland?

Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 443 caller can be anywhere.

Area code 443

Where is area code 443?

Baltimore, Annapolis and Towson, Maryland

Local time: … (Eastern Time)

State	Maryland
Country	United States
Main cities	Baltimore, Annapolis and Towson
Time zone	Eastern Time
Overlay area codes	410 and 667
In service since	1997 (created from 410)
Assigned prefixes	785
Dialing format	(443) XXX-XXXX · +1 443 XXX XXXX from abroad

Look up a 443 number

Cities and towns in area code 443

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 443.

Baltimore, MD (199)
Annapolis, MD (51)
Towson, MD (33)
Columbia, MD (31)
Glen Burnie, MD (26)
Bel Air, MD (24)
Catonsville, MD (22)
Owings Mills, MD (21)
Salisbury, MD (20)
Aberdeen, MD (15)
Westminster, MD (15)
Cockeysville, MD (14)
Elkton, MD (14)
Parkville, MD (14)
Woodlawn, MD (13)
Dundalk, MD (10)
Fallston, MD (10)
Halethorpe, MD (10)
Easton, MD (9)
Edgewood, MD (9)
Elkridge, MD (9)
Ellicott City, MD (9)
Millersville, MD (9)
Prince Frederick, MD (9)
Randallstown, MD (9)
Sykesville, MD (9)
Hanover, MD (8)
Pasadena, MD (8)
Reisterstown, MD (8)
Brynpklncm, MD (7)
Cambridge, MD (7)
Chase, MD (6)
Sparrowspt, MD (6)
Waterlo236, MD (6)
Hampstead, MD (5)
North East, MD (5)
Odenton, MD (5)
Cardiff, MD (4)
Chestertown, MD (4)
Churchvl, MD (4)
Crofton, MD (4)
Delmar, MD (4)
Havre de Grace, MD (4)
Jarrettsvl, MD (4)
Lothian, MD (4)
Millersvl, MD (4)
Northbeach, MD (4)
Perryville, MD (4)
Sparksglnc, MD (4)
Worthingtn, MD (4)
Glenwood, MD (3)
New Windsor, MD (3)
Ocean City, MD (3)
Parkton, MD (3)
Pt Deposit, MD (3)
Silver Run, MD (3)
Taneytown, MD (3)
Berlin, MD (2)
Centreville, MD (2)
Darlington, MD (2)
Pocomoke City, MD (2)
Princess Anne, MD (2)
Solomons, MD (2)
Union Bdg, MD (2)
Bishopville, MD (1)
Chesapeake City, MD (1)
Crisfield, MD (1)
Denton, MD (1)
Federalsburg, MD (1)
Nanticoke, MD (1)
Pittsville, MD (1)
Queenstown, MD (1)
Sharptown, MD (1)
Snow Hill, MD (1)
Stevensville, MD (1)
Trappe, MD (1)
Vienna, MD (1)

Phone companies in area code 443

The carriers that hold the most 443 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

Prefixes	Carrier
153	Paetec Itel
121	Verizon Wireless
94	Omnipoint Communications Cap Operations (T-Mobile)
71	New Cingular Wireless PCS (AT&T)
69	Level 3 Communications
55	Verizon Maryland
53	Mcimetro Access Transmission Services
48	Teleport Communications America

All 785 prefixes in area code 443

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 443

Questions

Where is area code 443?: Area code 443 is in Maryland. It serves Baltimore, Annapolis, Towson, Columbia and Glen Burnie and 72 other cities and towns.
What time zone is area code 443 in?: Area code 443 uses Eastern Time.
What area codes overlay 443?: 410 and 667 serve the same area as 443. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 443 a scam?: The area code alone doesn’t tell you. Most calls from 443 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 443 number, let it go to voicemail.
When did area code 443 start?: 443 went into service in 1997. It was created from area code 410.
Can a 443 number be outside Maryland?: Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 443 caller can be anywhere.

Other area codes in Maryland

Area code	Main cities
227	Rockville, Bethesda and Myersville
240	Silver Spring, Rockville and Bethesda
301	Silver Spring, Bethesda and Rockville