Phone Prefix
(603) 421-XXXX
NH • DERRY
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
NH
Region
NE
Rate Center
DERRY
Assigned To
CONSOLIDATED COMM OF NO. NEW ENGLAND-NH
OCN
5113
Status
RT
Number Range
First Number
(603) 421-0000
Last Number
(603) 421-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
16 reports
16
Total FCC + FTC DNC complaints for numbers in this prefix
Top 14 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 421-6038 6034216038 | 2 |
| 2 | (603) 421-2693 6034212693 | 1 |
| 3 | (603) 421-3195 6034213195 | 1 |
| 4 | (603) 421-3251 6034213251 | 1 |
| 5 | (603) 421-3898 6034213898 | 1 |
| 6 | (603) 421-4288 6034214288 | 1 |
| 7 | (603) 421-4791 6034214791 | 1 |
| 8 | (603) 421-5204 6034215204 | 1 |
| 9 | (603) 421-6239 6034216239 | 1 |
| 10 | (603) 421-6452 6034216452 | 1 |
| 11 | (603) 421-7874 6034217874 | 1 |
| 12 | (603) 421-9015 6034219015 | 1 |
| 13 | (603) 421-0936 6034210936 | 1 |
| 14 | (603) 421-9032 6034219032 | 1 |
About This Prefix
Phone numbers starting with (603) 421 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (421) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (421) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)