A row house or an apartment for rent in Baltimore draws calls from many strangers.
List it with a 443 number, take the calls on your own phone and burn the number once the lease is signed.
Local 443 numbers
Get a 443 phone number for Baltimore and the Eastern Shore.
Ask for 443 when you create a number on ExpressNumber, and the number you hand out reads as Baltimore and eastern Maryland. It rings the phone you already carry, and you burn it in one tap.
$0 todayLive in about a minute
This is how you get a 443 number.
- Start your 7 days free and open Create a number.
- Type 443 as the area code and give the number a name.
- Hand it out. Calls ring the phone you already carry, and texts land in your inbox.
- Burn it in one tap when you are done. Calls and texts to it stop at once.
9:41
Your numbers
Row house for rent
(443) 555-0127
Forwarding
Boat for sale
(443) 555-0165
Texts only
Moving quote
(443) 555-0103
Blocked
People ask for 443 when the search is in Baltimore or on the Eastern Shore.
A boat for sale in Annapolis or a beach rental near Ocean City brings texts all season.
Post a 443 number with the photos, set it to Texts only and keep your own number off the ad.
A moving job or a catering order ends in follow-up calls.
Give each company its own 443 number. Block the ones you did not choose.
This is where a 443 number is from.
Area code 443 covers the eastern part of Maryland, on exactly the same ground as 410 and 667: the Baltimore metropolitan area, all of the Eastern Shore, all of Harford and Calvert counties, and most of Howard and Anne Arundel counties.
The numbering administrator's rate center maps name Annapolis, Columbia, Towson, Ellicott City, Glen Burnie, Salisbury, Ocean City, Bel Air, Easton, Cambridge and Dundalk among many more. Western Maryland uses 301, 240 and 227.
Baltimore and the Eastern Shore, MD
Area code 443 and the codes around it, oldest first.
1991
410
Shares the area
1997
443
This code
2012
667
Shares the area
- Baltimore
- Annapolis
- Columbia
- Towson
- Ellicott City
- Glen Burnie
- Salisbury
- Ocean City
- Bel Air
- Easton
- Cambridge
- Dundalk
These are the facts about area code 443.
From the public records of the body that runs US phone numbering, read October 21, 2026.
- Place
- Baltimore and the Eastern Shore, Maryland
- In service since
- 1997
- Local calls are dialed with
- Ten digits
- Shares its area with
- 410 (1991) and 667 (2012)
443 was never split from 410: it is a second code laid over 410, which has been in service since 1991. The Maryland Public Service Commission approved the overlay, and 443 entered service on June 1, 1997.
A third code, 667, was laid over the same area on March 24, 2012. Ten-digit dialing was already required for local calls when 667 arrived.
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People ask these questions about getting a 443 number.
More in the full FAQ.
Create a number in your dashboard, type 443 as the area code and give it a name, such as Row house for rent. It is live in about a minute. You do not need to live in Maryland: calls ring the phone you already carry.
Yes, for taking calls and texts. A mover, a tutor or a baker in Towson can put a 443 number on the flyer and the website, take the calls on their own phone and burn the number when the job is done.
Yes. The 443 area takes in Baltimore, Annapolis, Columbia, Towson, Salisbury and Ocean City. 410 and 667 numbers cover the same area.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
You get 7 days free and pay $0 today. After 7 days your plan starts: $9.99 a month for Basic or $29.99 a month for Pro. Cancel before then and you pay nothing.
More area codes
Every fact on this page comes from public numbering records.
The state, the dates and the related codes are rows of the North American Numbering Plan Administrator's area code database. The places are from its planning letters and the state’s own pages. Read October 21, 2026.
- North American Numbering Plan Administrator, area code database
- NANPA industry letter IL-96/06-008 on the 443 overlay of 410, June 21, 1996
- NANPA planning letter PL-427, October 10, 2011
- NANPA industry letter IL-90/12-049 on the split of the 301 area code, December 28, 1990
- Maryland Public Service Commission, the new 667 area code, frequently asked questions
Put 443 on a number you can burn.
Hand out a number you can burn. Keep the one your family calls.
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