← Area code 409
409-566 phone numbers
Numbers 409-566-0000 to 409-566-9999 are assigned to Aerial Communications, Inc. in Port Arthur, TX. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 409-566-1xxx, 409-566-2xxx, 409-566-3xxx, 409-566-5xxx, 409-566-6xxx, 409-566-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.