← Area code 203
203-423 phone numbers
Numbers 203-423-0000 to 203-423-9999 are assigned to Teleport Communications America, LLC (rate centre WILTON, CT, NANPA abbreviation). 7 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 203-423
- 1 (203) 423-3598 2complaints
- 2 (203) 423-3610 2complaints
- 3 (203) 423-6130 2complaints
- 4 (203) 423-0237 1complaints
- 5 (203) 423-0310 1complaints
- 6 (203) 423-0571 1complaints
- 7 (203) 423-0648 1complaints
- 8 (203) 423-0863 1complaints
- 9 (203) 423-1197 1complaints
- 10 (203) 423-1258 1complaints
- 11 (203) 423-1734 1complaints
- 12 (203) 423-2783 1complaints
- 13 (203) 423-3006 1complaints
- 14 (203) 423-3451 1complaints
- 15 (203) 423-3502 1complaints
- 16 (203) 423-3559 1complaints
- 17 (203) 423-3779 1complaints
- 18 (203) 423-3860 1complaints
- 19 (203) 423-4618 1complaints
- 20 (203) 423-4731 1complaints
- 21 (203) 423-5152 1complaints
- 22 (203) 423-5395 1complaints
- 23 (203) 423-5665 1complaints
- 24 (203) 423-6923 1complaints
- 25 (203) 423-8053 1complaints
- 26 (203) 423-8234 1complaints
- 27 (203) 423-8481 1complaints