Prefix Information
The prefix 721 is part of area code 213 serving Los Angeles, California.
This exchange contains 10,000 possible phone numbers (213-721-0000 through 213-721-9999).
Phone numbers with prefix 721 in area code 213. Location: Los Angeles, California.
The prefix 721 is part of area code 213 serving Los Angeles, California.
This exchange contains 10,000 possible phone numbers (213-721-0000 through 213-721-9999).