Phone Prefix
(603) 575-XXXX
NH • LITTLETON
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Carrier Information
NANPA
State
NH
Region
NE
Rate Center
LITTLETON
Assigned To
TELEPORT COMMUNICATIONS AMERICA, LLC - NH
OCN
8299
Status
AS
Date Assigned
Apr 19, 2019
Number Range
First Number
(603) 575-0000
Last Number
(603) 575-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
11 reports
11
Total FCC + FTC DNC complaints for numbers in this prefix
Top 11 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (603) 575-0284 6035750284 | 1 |
| 2 | (603) 575-0313 6035750313 | 1 |
| 3 | (603) 575-0727 6035750727 | 1 |
| 4 | (603) 575-2603 6035752603 | 1 |
| 5 | (603) 575-3464 6035753464 | 1 |
| 6 | (603) 575-6081 6035756081 | 1 |
| 7 | (603) 575-6393 6035756393 | 1 |
| 8 | (603) 575-6537 6035756537 | 1 |
| 9 | (603) 575-6547 6035756547 | 1 |
| 10 | (603) 575-8296 6035758296 | 1 |
| 11 | (603) 575-9403 6035759403 | 1 |
About This Prefix
Phone numbers starting with (603) 575 are part of the North American Numbering Plan (NANP). The first three digits (603) represent the Area Code (NPA), and the next three digits (575) represent the Central Office Code (NXX) or exchange.
- NPA (603) - Numbering Plan Area, identifies the geographic region
- NXX (575) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)