Prefix Information
The prefix 503 is part of area code 813 serving Tampa, Florida.
This exchange contains 10,000 possible phone numbers (813-503-0000 through 813-503-9999).
Phone numbers with prefix 503 in area code 813. Location: Tampa, Florida.
The prefix 503 is part of area code 813 serving Tampa, Florida.
This exchange contains 10,000 possible phone numbers (813-503-0000 through 813-503-9999).