Phone Prefix
(203) 421-XXXX
CT • MADISON
Search Number in This Prefix
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Carrier Information
NANPA
State
CT
Region
NE
Rate Center
MADISON
Assigned To
SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT
OCN
9147
Status
RT
Number Range
First Number
(203) 421-0000
Last Number
(203) 421-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
21 reports
21
Total FCC + FTC DNC complaints for numbers in this prefix
Top 21 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (203) 421-0137 2034210137 | 1 |
| 2 | (203) 421-0151 2034210151 | 1 |
| 3 | (203) 421-0232 2034210232 | 1 |
| 4 | (203) 421-1215 2034211215 | 1 |
| 5 | (203) 421-1529 2034211529 | 1 |
| 6 | (203) 421-3428 2034213428 | 1 |
| 7 | (203) 421-3832 2034213832 | 1 |
| 8 | (203) 421-4036 2034214036 | 1 |
| 9 | (203) 421-4535 2034214535 | 1 |
| 10 | (203) 421-5149 2034215149 | 1 |
| 11 | (203) 421-5447 2034215447 | 1 |
| 12 | (203) 421-5689 2034215689 | 1 |
| 13 | (203) 421-6172 2034216172 | 1 |
| 14 | (203) 421-6238 2034216238 | 1 |
| 15 | (203) 421-6738 2034216738 | 1 |
| 16 | (203) 421-7071 2034217071 | 1 |
| 17 | (203) 421-8527 2034218527 | 1 |
| 18 | (203) 421-8604 2034218604 | 1 |
| 19 | (203) 421-9732 2034219732 | 1 |
| 20 | (203) 421-9758 2034219758 | 1 |
| 21 | (203) 421-9906 2034219906 | 1 |
About This Prefix
Phone numbers starting with (203) 421 are part of the North American Numbering Plan (NANP). The first three digits (203) represent the Area Code (NPA), and the next three digits (421) represent the Central Office Code (NXX) or exchange.
- NPA (203) - Numbering Plan Area, identifies the geographic region
- NXX (421) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)