← Area code 408
408-804 phone numbers
Numbers 408-804-0000 to 408-804-9999 are assigned to Verizon Wireless in Hollister, CA.
Not assigned to any carrier: 408-804-2xxx, 408-804-3xxx, 408-804-4xxx, 408-804-5xxx, 408-804-6xxx, 408-804-7xxx, 408-804-8xxx, 408-804-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.