Phone Prefix
(909) 978-XXXX
CA • DIAMONDBAR
Search Number in This Prefix
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
DIAMONDBAR
Assigned To
ONVOY SPECTRUM, LLC
OCN
624H
Status
AS
Date Assigned
Apr 22, 2025
Number Range
First Number
(909) 978-0000
Last Number
(909) 978-9999
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 | (909) 978-0165 9099780165 | 1 |
| 2 | (909) 978-2180 9099782180 | 1 |
| 3 | (909) 978-2283 9099782283 | 1 |
| 4 | (909) 978-4062 9099784062 | 1 |
| 5 | (909) 978-4707 9099784707 | 1 |
| 6 | (909) 978-6046 9099786046 | 1 |
| 7 | (909) 978-6795 9099786795 | 1 |
| 8 | (909) 978-7028 9099787028 | 1 |
| 9 | (909) 978-7369 9099787369 | 1 |
| 10 | (909) 978-8915 9099788915 | 1 |
| 11 | (909) 978-9073 9099789073 | 1 |
About This Prefix
Phone numbers starting with (909) 978 are part of the North American Numbering Plan (NANP). The first three digits (909) represent the Area Code (NPA), and the next three digits (978) represent the Central Office Code (NXX) or exchange.
- NPA (909) - Numbering Plan Area, identifies the geographic region
- NXX (978) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)