Prefix Information

The prefix 640 is part of area code 858 serving San Diego, California.

This exchange contains 10,000 possible phone numbers (858-640-0000 through 858-640-9999).

Browse Numbers in This Prefix

858-640-0000-0999 858-640-1000-1999 858-640-2000-2999 858-640-3000-3999 858-640-4000-4999 858-640-5000-5999 858-640-6000-6999 858-640-7000-7999 858-640-8000-8999 858-640-9000-9999

Sample Numbers

(858) 640-0000 (858) 640-1234 (858) 640-2000 (858) 640-3333 (858) 640-4444 (858) 640-5555 (858) 640-6000 (858) 640-7777 (858) 640-8888 (858) 640-9999