← Area code 203
203-563 phone numbers
Numbers 203-563-0000 to 203-563-9999 are assigned to Frontier Comm of Ct (rate centre WILTON, CT, NANPA abbreviation). 1 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 203-563
- 1 (203) 563-8776 4complaints
- 2 (203) 563-0454 2complaints
- 3 (203) 563-3385 2complaints
- 4 (203) 563-8189 2complaints
- 5 (203) 563-8208 2complaints
- 6 (203) 563-8213 2complaints
- 7 (203) 563-0073 1complaints
- 8 (203) 563-0578 1complaints
- 9 (203) 563-0595 1complaints
- 10 (203) 563-0832 1complaints
- 11 (203) 563-1046 1complaints
- 12 (203) 563-1390 1complaints
- 13 (203) 563-3822 1complaints
- 14 (203) 563-4044 1complaints
- 15 (203) 563-4536 1complaints
- 16 (203) 563-4552 1complaints
- 17 (203) 563-5278 1complaints
- 18 (203) 563-5575 1complaints
- 19 (203) 563-6226 1complaints
- 20 (203) 563-6554 1complaints
- 21 (203) 563-8572 1complaints
- 22 (203) 563-8573 1complaints
- 23 (203) 563-8666 1complaints
- 24 (203) 563-8934 1complaints
- 25 (203) 563-9116 1complaints
- 26 (203) 563-9349 1complaints
- 27 (203) 563-9880 1complaints
- 28 (203) 563-9962 1complaints
- 29 (203) 563-9998 1complaints