Phone Prefix
(603) 257-XXXX
NH • PLAISTOW
Search Number in This Prefix
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
PLAISTOW
Assigned To
BELL ATLANTIC MOBILE, INC
OCN
6386
Status
AS
Date Assigned
Nov 04, 2016
Number Range
First Number
(603) 257-0000
Last Number
(603) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
36 reports
36
Total FCC + FTC DNC complaints for numbers in this prefix
Top 18 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 257-9012 6032579012 | 12 |
| 2 | (603) 257-9023 6032579023 | 8 |
| 3 | (603) 257-2526 6032572526 | 1 |
| 4 | (603) 257-2586 6032572586 | 1 |
| 5 | (603) 257-4153 6032574153 | 1 |
| 6 | (603) 257-5042 6032575042 | 1 |
| 7 | (603) 257-7080 6032577080 | 1 |
| 8 | (603) 257-7580 6032577580 | 1 |
| 9 | (603) 257-7616 6032577616 | 1 |
| 10 | (603) 257-9026 6032579026 | 1 |
| 11 | (603) 257-9031 6032579031 | 1 |
| 12 | (603) 257-9035 6032579035 | 1 |
| 13 | (603) 257-9072 6032579072 | 1 |
| 14 | (603) 257-9102 6032579102 | 1 |
| 15 | (603) 257-9176 6032579176 | 1 |
| 16 | (603) 257-1592 6032571592 | 1 |
| 17 | (603) 257-9555 6032579555 | 1 |
| 18 | (603) 257-2412 6032572412 | 1 |
About This Prefix
Phone numbers starting with (603) 257 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)