Phone Prefix
(510) 404-XXXX
CA • FRNK GRNLF
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
FRNK GRNLF
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
OCN
7240
Status
RT
Number Range
First Number
(510) 404-0000
Last Number
(510) 404-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
9 reports
9
Total FCC + FTC DNC complaints for numbers in this prefix
Top 9 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 404-0604 5104040604 | 1 |
| 2 | (510) 404-0633 5104040633 | 1 |
| 3 | (510) 404-1690 5104041690 | 1 |
| 4 | (510) 404-3604 5104043604 | 1 |
| 5 | (510) 404-7096 5104047096 | 1 |
| 6 | (510) 404-7642 5104047642 | 1 |
| 7 | (510) 404-8052 5104048052 | 1 |
| 8 | (510) 404-8330 5104048330 | 1 |
| 9 | (510) 404-8349 5104048349 | 1 |
About This Prefix
Phone numbers starting with (510) 404 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (404) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (404) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)