← Area code 603
603-680 phone numbers
Numbers 603-680-0000 to 603-680-9999 are assigned to Fidium Enterprise Services, LLC (rate centre HILLSBORO, NH, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 603-680-2xxx, 603-680-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 603-680
- 1 (603) 680-2993 2complaints
- 2 (603) 680-3652 2complaints
- 3 (603) 680-2341 1complaints
- 4 (603) 680-2486 1complaints
- 5 (603) 680-2500 1complaints
- 6 (603) 680-2576 1complaints
- 7 (603) 680-2745 1complaints
- 8 (603) 680-3041 1complaints
- 9 (603) 680-3050 1complaints
- 10 (603) 680-3752 1complaints
- 11 (603) 680-3760 1complaints
- 12 (603) 680-3950 1complaints
- 13 (603) 680-4018 1complaints
- 14 (603) 680-4056 1complaints
- 15 (603) 680-4127 1complaints
- 16 (603) 680-4197 1complaints
- 17 (603) 680-4231 1complaints
- 18 (603) 680-4333 1complaints
- 19 (603) 680-5085 1complaints
- 20 (603) 680-7031 1complaints
- 21 (603) 680-7216 1complaints
- 22 (603) 680-7818 1complaints
- 23 (603) 680-8419 1complaints