Prefix Information
The prefix 542 is part of area code 443 serving Baltimore, Maryland.
This exchange contains 10,000 possible phone numbers (443-542-0000 through 443-542-9999).
Phone numbers with prefix 542 in area code 443. Location: Baltimore, Maryland.
The prefix 542 is part of area code 443 serving Baltimore, Maryland.
This exchange contains 10,000 possible phone numbers (443-542-0000 through 443-542-9999).