The 443 area code is a codification established by AT&T and The Bell System for the eastern area of Maryland. Also, this prefix covers 17 counties in the area and it encloses the cities of Baltimore, Columbia, Glen Burnie, Ellicott City, and Dundalk.
The 443 area code has been representative of the Eastern Shore of the state since its introduction in the area. Despite not being the original area code, this number comprises several significant cities, districts, and locations in Maryland.
Maryland possesses other 4 dialing codes apart from the 443, which arises as pillars of the telecommunication system in the zone. Besides, the state counts with a diversified economy based on services, high technology, biosciences, and international trades, making this kind of system and network vital for the territory.
1. History
The 443 area code emerged as an overlay for the prefix 410 on June 1st, 1997. This code was created as part of the overlay plan from the (North American Numbering Plan) to prevent exhaustion of central office codes and telephone numbers.
The Original area code owned to the Maryland state is the 301. This dialing code used to serve the entire territory until the creation of the 410 code in 1991; eventually, the proliferation of cell phones in the area made necessary the activation of a new prefix.
This prefix, split off from 410 code, was meant to the Eastern Shore of the state. Further, it requires ten-digits dialing in the same way as the original one.
By 2011, the saturation of telephone numbers was still affecting all the area, detrimenting the network services. For that reason, the government added a third overlay code (667) to the eastern region of Maryland.
2. Location
Maryland is ranked as the 9th smallest state and the 19th most populous in the country. This region, best known for fishing and mining, is located in the Mid-Atlantic Region of the east coast of the United States. Besides, Maryland is a diverse state with a lot of urban communities owned by the major cities, as well as a variety of farmlands and rural areas.
The 443 area code is under the Eastern Daylight time zone and includes 321 non-unique postal area zip codes and covers 5760.62 square miles.
17 counties and more than 23 cities, districts, and locations are enclosed by the 443 and its overlay 667. including the Metropolitan area of Baltimore, Columbia, and much more.
Adjacent codes
Inside Maryland, there are five area codes covering the entire region. The most used dialing number in this zone is the 410, which serves over 3.1 million users in the territory and overlays the 443 area code and the 667 area code.
On the other hand, The Western part of the location disposes of prefix 301, which was the primary codification employed for covering all the area. Some decades later, with the addition of the number 410, the original codification got reduced to a portion of the zone.
In 1997, at the same time as the 443 prefix started operating, the 240 area code would begin to run as an overlay of the 301 code, covering 11 counties into radius; including Frederick, Montgomery, and Prince George's.
3. Most Important Cities in the 443 Area Code
Baltimore
Baltimore city was established in 1729 and named by the Irish barony of Baltimore, the owner of the colony. It’s the most populous city in the state of Maryland and the 30th largest in the country.
Baltimore is a southern city situated to the northeast of Washington, D.C, at the western Chesapeake Bay along the East Coast of the country.
With a great diversity of districts and communities, Baltimore is considered by its residents the “City of Neighborhoods.” Several of these zones have been added to the National Register Historic Districts of the U.S., including Fell’s Point and Federal Hills.
The largest city in Maryland has an estimated population of 609.032 residents and disposes of 27 ZIP codes.
Columbia
The city of Columbia is the 2nd most populous city in the state of Maryland, located in Howard county. This region is one of the main communities of the Baltimore-Washington Metropolitan area. It’s located in the Piedmont region of Maryland, northwest of Annapolis, southwest of Baltimore, and northeast of Washington, D.C.
Columbia it’s a planned community consisting of 10 self-contained villages. By 2020, the city ranked in the top five of the best places to live in the United States for Money Magazine.
It counts with a population estimated at 103.9991 inhabitants, the region encompasses three ZIP codes.
4. Other Important Locations and ZIP Codes of the 443 Area Code
The 443 area code covers, 17 counties and more than 50 cities, districts, and suburbs, including:
- Anne Arundel: created in 1650 and named by Lady Anne Arundell, wife of the 2nd Baron Baltimore. The Seat of the County is the city of Annapolis. The zone disposes of more than 579k inhabitants and 36 ZIP codes
- Harford: Harford County was designated in 1774 from the eastern portion of Baltimore County. It counts with more than 20 towns and cities, having Bel Air as the county seat. This urban community is home to around 255k residents. Also, it possesses 20 ZIP codes.
- Howard: The Howard District was formed in 1839, this county belongs to the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area. The location is well known for its scholarship and quality of life. It has roughly 325 inhabitants and 20 ZIP codes.
Main Postal and Shipping Services
- The UPS Store | W Pratt, St - +1 443-220-0280
- Live Ops | Parkville, MD - +1 443-449-5914
- Ottomattic Marine Transport | Patterson Park Ave, MD - +1 443-506-0905
- Baltimore City Social Services | N Broadway, MD - +1 443-378-4600
- Shipping & receiving Solutions, Baltimore, MD - +1 443-912-3205
5. FAQs
How Many Area Codes Are There in Maryland?
In Maryland exist 5 area codes, the prefixes 410, 443, and 667 for the Eastern portion, and the Western the numbers 301 and 240.
Can I Use the 770 Prefix on a Cellphone?
Maryland’s state establishes a specific prefix for cell phones, depending on the user's city.