631-693 phone numbers

Numbers 631-693-0000 to 631-693-9999 are assigned to Tc Systems, Inc. in Amityville, NY. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 631-693-7xxx, 631-693-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 631-693