Phone Prefix
(657) 400-XXXX
CA • WESTMINSTR
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
WESTMINSTR
Assigned To
ONVOY, LLC - CA
OCN
649C
Status
AS
Date Assigned
Apr 02, 2012
Number Range
First Number
(657) 400-0000
Last Number
(657) 400-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
19 reports
19
Total FCC + FTC DNC complaints for numbers in this prefix
Top 13 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (657) 400-3217 6574003217 | 5 |
| 2 | (657) 400-0991 6574000991 | 2 |
| 3 | (657) 400-2219 6574002219 | 2 |
| 4 | (657) 400-4501 6574004501 | 1 |
| 5 | (657) 400-8051 6574008051 | 1 |
| 6 | (657) 400-8525 6574008525 | 1 |
| 7 | (657) 400-8853 6574008853 | 1 |
| 8 | (657) 400-8941 6574008941 | 1 |
| 9 | (657) 400-8957 6574008957 | 1 |
| 10 | (657) 400-0965 6574000965 | 1 |
| 11 | (657) 400-9406 6574009406 | 1 |
| 12 | (657) 400-2053 6574002053 | 1 |
| 13 | (657) 400-3951 6574003951 | 1 |
About This Prefix
Phone numbers starting with (657) 400 are part of the North American Numbering Plan (NANP). The first three digits (657) represent the Area Code (NPA), and the next three digits (400) represent the Central Office Code (NXX) or exchange.
- NPA (657) - Numbering Plan Area, identifies the geographic region
- NXX (400) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)