650-748 phone numbers

Numbers 650-748-0000 to 650-748-9999 are assigned to Teleport Communications America, LLC in La Honda, CA. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 650-748-2xxx, 650-748-4xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 650-748