Phone Prefix
(603) 400-XXXX
NH • HOLLIS
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
HOLLIS
Assigned To
NEW CINGULAR WIRELESS PCS, LLC - DC
OCN
4036
Status
AS
Date Assigned
Sep 30, 2011
Number Range
First Number
(603) 400-0000
Last Number
(603) 400-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
7 reports
7
Total FCC + FTC DNC complaints for numbers in this prefix
Top 7 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 400-0310 6034000310 | 1 |
| 2 | (603) 400-0555 6034000555 | 1 |
| 3 | (603) 400-7188 6034007188 | 1 |
| 4 | (603) 400-8274 6034008274 | 1 |
| 5 | (603) 400-8406 6034008406 | 1 |
| 6 | (603) 400-8526 6034008526 | 1 |
| 7 | (603) 400-8958 6034008958 | 1 |
About This Prefix
Phone numbers starting with (603) 400 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (400) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (400) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)