Prefix Information
The prefix 503 is part of area code 419 serving Toledo, Ohio.
This exchange contains 10,000 possible phone numbers (419-503-0000 through 419-503-9999).
Phone numbers with prefix 503 in area code 419. Location: Toledo, Ohio.
The prefix 503 is part of area code 419 serving Toledo, Ohio.
This exchange contains 10,000 possible phone numbers (419-503-0000 through 419-503-9999).