Prefix Information

The prefix 378 is part of area code 858 serving San Diego, California.

This exchange contains 10,000 possible phone numbers (858-378-0000 through 858-378-9999).

Browse Numbers in This Prefix

858-378-0000-0999 858-378-1000-1999 858-378-2000-2999 858-378-3000-3999 858-378-4000-4999 858-378-5000-5999 858-378-6000-6999 858-378-7000-7999 858-378-8000-8999 858-378-9000-9999

Sample Numbers

(858) 378-0000 (858) 378-1234 (858) 378-2000 (858) 378-3333 (858) 378-4444 (858) 378-5555 (858) 378-6000 (858) 378-7777 (858) 378-8888 (858) 378-9999