540-990 phone numbers

Numbers 540-990-0000 to 540-990-9999 are assigned to Twilio International, Inc. in Dahlgren, VA. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 540-990-0xxx, 540-990-6xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 540-990