Prefix Information
The prefix 503 is part of area code 380 serving Columbus, Ohio.
This exchange contains 10,000 possible phone numbers (380-503-0000 through 380-503-9999).
Phone numbers with prefix 503 in area code 380. Location: Columbus, Ohio.
The prefix 503 is part of area code 380 serving Columbus, Ohio.
This exchange contains 10,000 possible phone numbers (380-503-0000 through 380-503-9999).