Prefix Information
The prefix 820 is part of area code 442 serving Oceanside, California.
This exchange contains 10,000 possible phone numbers (442-820-0000 through 442-820-9999).
Phone numbers with prefix 820 in area code 442. Location: Oceanside, California.
The prefix 820 is part of area code 442 serving Oceanside, California.
This exchange contains 10,000 possible phone numbers (442-820-0000 through 442-820-9999).