← Area code 203
203-688 phone numbers
Numbers 203-688-0000 to 203-688-9999 are assigned to Frontier Comm of Ct in New Haven, CT.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 203-688
- 1 (203) 688-1754 2complaints
- 2 (203) 688-9396 2complaints
- 3 (203) 688-0238 1complaints
- 4 (203) 688-1010 1complaints
- 5 (203) 688-3404 1complaints
- 6 (203) 688-3794 1complaints
- 7 (203) 688-5374 1complaints
- 8 (203) 688-5694 1complaints
- 9 (203) 688-7153 1complaints
- 10 (203) 688-8139 1complaints
- 11 (203) 688-9038 1complaints