Prefix Information
The prefix 503 is part of area code 805 serving Oxnard, California.
This exchange contains 10,000 possible phone numbers (805-503-0000 through 805-503-9999).
Phone numbers with prefix 503 in area code 805. Location: Oxnard, California.
The prefix 503 is part of area code 805 serving Oxnard, California.
This exchange contains 10,000 possible phone numbers (805-503-0000 through 805-503-9999).