← Area code 608
608-504 phone numbers
Numbers 608-504-0000 to 608-504-9999 are assigned to Onvoy, LLC in Madison, WI. 9 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 608-504
- 1 (608) 504-2375 14complaints
- 2 (608) 504-3457 2complaints
- 3 (608) 504-3535 2complaints
- 4 (608) 504-0601 1complaints
- 5 (608) 504-2475 1complaints
- 6 (608) 504-2862 1complaints
- 7 (608) 504-2948 1complaints
- 8 (608) 504-3241 1complaints
- 9 (608) 504-3577 1complaints
- 10 (608) 504-3833 1complaints
- 11 (608) 504-4534 1complaints
- 12 (608) 504-5223 1complaints
- 13 (608) 504-5242 1complaints
- 14 (608) 504-5897 1complaints
- 15 (608) 504-6600 1complaints
- 16 (608) 504-6648 1complaints
- 17 (608) 504-6701 1complaints
- 18 (608) 504-7535 1complaints
- 19 (608) 504-8687 1complaints