Prefix Information
The prefix 503 is part of area code 914 serving Yonkers, New York.
This exchange contains 10,000 possible phone numbers (914-503-0000 through 914-503-9999).
Phone numbers with prefix 503 in area code 914. Location: Yonkers, New York.
The prefix 503 is part of area code 914 serving Yonkers, New York.
This exchange contains 10,000 possible phone numbers (914-503-0000 through 914-503-9999).