← Area code 203
203-436 phone numbers
Numbers 203-436-0000 to 203-436-9999 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 203-436
- 1 (203) 436-0990 2complaints
- 2 (203) 436-2191 2complaints
- 3 (203) 436-0258 1complaints
- 4 (203) 436-1337 1complaints
- 5 (203) 436-1370 1complaints
- 6 (203) 436-1610 1complaints
- 7 (203) 436-1923 1complaints
- 8 (203) 436-3056 1complaints
- 9 (203) 436-3511 1complaints
- 10 (203) 436-3696 1complaints
- 11 (203) 436-3850 1complaints
- 12 (203) 436-5338 1complaints
- 13 (203) 436-7292 1complaints