← Area code 209
209-377 phone numbers
Numbers 209-377-0000 to 209-377-9999 are assigned to Hornitos Tel. Co. in Mt. Bullion, CA.
Not assigned to any carrier: 209-377-0xxx, 209-377-1xxx, 209-377-2xxx, 209-377-3xxx, 209-377-4xxx, 209-377-5xxx, 209-377-6xxx, 209-377-7xxx, 209-377-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.