Phone Prefix
(510) 491-XXXX
CA • FRNK GRNLF
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
FRNK GRNLF
Assigned To
ONVOY, LLC - CA
OCN
649C
Status
AS
Date Assigned
Oct 01, 2014
Number Range
First Number
(510) 491-0000
Last Number
(510) 491-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
36 reports
36
Total FCC + FTC DNC complaints for numbers in this prefix
Top 13 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 491-9945 5104919945 | 19 |
| 2 | (510) 491-2108 5104912108 | 6 |
| 3 | (510) 491-0121 5104910121 | 1 |
| 4 | (510) 491-2674 5104912674 | 1 |
| 5 | (510) 491-2919 5104912919 | 1 |
| 6 | (510) 491-0015 5104910015 | 1 |
| 7 | (510) 491-7340 5104917340 | 1 |
| 8 | (510) 491-7857 5104917857 | 1 |
| 9 | (510) 491-9685 5104919685 | 1 |
| 10 | (510) 491-9712 5104919712 | 1 |
| 11 | (510) 491-9890 5104919890 | 1 |
| 12 | (510) 491-4663 5104914663 | 1 |
| 13 | (510) 491-0105 5104910105 | 1 |
About This Prefix
Phone numbers starting with (510) 491 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (491) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (491) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)