Area Code 667 is an overlay for MD area codes 410/443, serving eastern Maryland. Covers Baltimore, Annapolis, & the Eastern Shore. Understand 10-digit dialing, NANPA, number portability. Learn about VoIP, landline, mobile options. Alleviated pressure on 443 in 2012 as the 359th NANP code.
Frequently Asked Questions
What Maryland areas use area code 667?
How do I dial a 667 number from another area code?
Why was the 667 area code created in Maryland?
What is the proper way to dial within area code 667?
When dialing 667, what counties are included?
How to dial operator assisted calls for area code 667?
What phone services are available in the 667 area code?
Can I keep my 667 number if I change phone providers?
What is area code 667 in relation to 410 and 443?
Where can I find more information on area codes in Maryland?
