Phone Prefix
(603) 857-XXXX
NH • SUNCOOK
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
SUNCOOK
Assigned To
BELL ATLANTIC MOBILE, INC
OCN
6386
Status
AS
Date Assigned
Apr 21, 2022
Number Range
First Number
(603) 857-0000
Last Number
(603) 857-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
5 reports
5
Total FCC + FTC DNC complaints for numbers in this prefix
Top 5 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 857-1056 6038571056 | 1 |
| 2 | (603) 857-1236 6038571236 | 1 |
| 3 | (603) 857-1356 6038571356 | 1 |
| 4 | (603) 857-2616 6038572616 | 1 |
| 5 | (603) 857-7294 6038577294 | 1 |
About This Prefix
Phone numbers starting with (603) 857 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (857) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (857) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)