Maryland BaltimoreGeographic

Area Code 443

Baltimore, Maryland

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1,802

Available Numbers

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Cities Covered

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New York

Timezone

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10-digit

Dialing Rules

Coverage Area

443 Cities and regions covered

Maryland · MD

Major Cities

Baltimore Annapolis Columbia Dundalk Towson Essex Catonsville Ellicott City Glen Burnie Salisbury Easton Ocean City

In Service 1997-01-01

Status Active

Area Code History

443

443区号于1997年启用，作为马里兰州410区号的叠加区号，服务马里兰州东部包括巴尔的摩地区。

Dialing Rules

443

10-digit

When dialing 443 area code numbers, follow these rules:

Local calls require full 10-digit dialing (area code + 7-digit number)
Long-distance calls require 1 + area code + 7-digit number

Why 443 is Valuable for Business

443 · Baltimore

The 443 area code covers Baltimore and surrounding areas, making it one of the most commercially valuable area codes in Maryland. Owning a premium 443 number enhances your business image and customer trust.

Premium Numbers

443 Premium numbers in this area code

FAQ

443 FAQ

What state is the 443 area code in?

The 443 area code is in Maryland (MD), primarily covering Baltimore and surrounding areas.

How do I get a premium 443 area code number?

You can search and buy premium 443 numbers on GreatNumber. We offer one-time payment with lifetime ownership — no monthly fees or hidden charges. We provide full porting assistance after purchase.

Can I port a 443 number to another carrier?

Yes, all numbers purchased on GreatNumber can be ported to any carrier of your choice (T-Mobile, AT&T, Verizon, etc.). Porting typically takes 3-14 business days, and we provide full bilingual support.

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Area Code 443

443 Cities and regions covered

Major Cities

443

443

443 · Baltimore

443 Premium numbers in this area code

443 FAQ

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