Prefix Information
The prefix 503 is part of area code 775 serving Reno, Nevada.
This exchange contains 10,000 possible phone numbers (775-503-0000 through 775-503-9999).
Phone numbers with prefix 503 in area code 775. Location: Reno, Nevada.
The prefix 503 is part of area code 775 serving Reno, Nevada.
This exchange contains 10,000 possible phone numbers (775-503-0000 through 775-503-9999).