Prefix Information
The prefix 503 is part of area code 401 serving Providence, Rhode Island.
This exchange contains 10,000 possible phone numbers (401-503-0000 through 401-503-9999).
Phone numbers with prefix 503 in area code 401. Location: Providence, Rhode Island.
The prefix 503 is part of area code 401 serving Providence, Rhode Island.
This exchange contains 10,000 possible phone numbers (401-503-0000 through 401-503-9999).