Phone Prefix
(603) 957-XXXX
NH • PORTSMOUTH
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
PORTSMOUTH
Assigned To
NEW CINGULAR WIRELESS PCS, LLC - DC
OCN
4036
Status
RT
Number Range
First Number
(603) 957-0000
Last Number
(603) 957-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
26 reports
26
Total FCC + FTC DNC complaints for numbers in this prefix
Top 10 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 957-4000 6039574000 | 9 |
| 2 | (603) 957-4026 6039574026 | 5 |
| 3 | (603) 957-4028 6039574028 | 3 |
| 4 | (603) 957-4029 6039574029 | 3 |
| 5 | (603) 957-5345 6039575345 | 1 |
| 6 | (603) 957-1030 6039571030 | 1 |
| 7 | (603) 957-9457 6039579457 | 1 |
| 8 | (603) 957-3352 6039573352 | 1 |
| 9 | (603) 957-4030 6039574030 | 1 |
| 10 | (603) 957-4344 6039574344 | 1 |
About This Prefix
Phone numbers starting with (603) 957 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (957) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (957) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)