Phone Prefix
(510) 403-XXXX
CA • FRNK OLIVR
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
CA
Region
WC
Rate Center
FRNK OLIVR
Assigned To
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Status
AS
Date Assigned
Jul 29, 2024
Number Range
First Number
(510) 403-0000
Last Number
(510) 403-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
34 reports
34
Total FCC + FTC DNC complaints for numbers in this prefix
Top 30 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 403-5904 5104035904 | 2 |
| 2 | (510) 403-4019 5104034019 | 2 |
| 3 | (510) 403-9784 5104039784 | 2 |
| 4 | (510) 403-4969 5104034969 | 2 |
| 5 | (510) 403-2920 5104032920 | 1 |
| 6 | (510) 403-3772 5104033772 | 1 |
| 7 | (510) 403-4004 5104034004 | 1 |
| 8 | (510) 403-4030 5104034030 | 1 |
| 9 | (510) 403-4645 5104034645 | 1 |
| 10 | (510) 403-4654 5104034654 | 1 |
| 11 | (510) 403-4662 5104034662 | 1 |
| 12 | (510) 403-4720 5104034720 | 1 |
| 13 | (510) 403-4771 5104034771 | 1 |
| 14 | (510) 403-4976 5104034976 | 1 |
| 15 | (510) 403-4979 5104034979 | 1 |
| 16 | (510) 403-5108 5104035108 | 1 |
| 17 | (510) 403-5203 5104035203 | 1 |
| 18 | (510) 403-5261 5104035261 | 1 |
| 19 | (510) 403-5587 5104035587 | 1 |
| 20 | (510) 403-5703 5104035703 | 1 |
| 21 | (510) 403-5900 5104035900 | 1 |
| 22 | (510) 403-5965 5104035965 | 1 |
| 23 | (510) 403-8546 5104038546 | 1 |
| 24 | (510) 403-8880 5104038880 | 1 |
| 25 | (510) 403-9458 5104039458 | 1 |
| 26 | (510) 403-0157 5104030157 | 1 |
| 27 | (510) 403-9991 5104039991 | 1 |
| 28 | (510) 403-0262 5104030262 | 1 |
| 29 | (510) 403-1248 5104031248 | 1 |
| 30 | (510) 403-1961 5104031961 | 1 |
About This Prefix
Phone numbers starting with (510) 403 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (403) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (403) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)