Phone Prefix
(510) 440-XXXX
CA • FRNK OLIVR
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
FRNK OLIVR
Assigned To
PACIFIC BELL
OCN
9740
Status
RT
Number Range
First Number
(510) 440-0000
Last Number
(510) 440-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
19 reports
19
Total FCC + FTC DNC complaints for numbers in this prefix
Top 17 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 440-9306 5104409306 | 2 |
| 2 | (510) 440-5863 5104405863 | 2 |
| 3 | (510) 440-1906 5104401906 | 1 |
| 4 | (510) 440-3323 5104403323 | 1 |
| 5 | (510) 440-3592 5104403592 | 1 |
| 6 | (510) 440-3865 5104403865 | 1 |
| 7 | (510) 440-4199 5104404199 | 1 |
| 8 | (510) 440-4351 5104404351 | 1 |
| 9 | (510) 440-5096 5104405096 | 1 |
| 10 | (510) 440-5244 5104405244 | 1 |
| 11 | (510) 440-5267 5104405267 | 1 |
| 12 | (510) 440-5470 5104405470 | 1 |
| 13 | (510) 440-8182 5104408182 | 1 |
| 14 | (510) 440-9132 5104409132 | 1 |
| 15 | (510) 440-1298 5104401298 | 1 |
| 16 | (510) 440-9492 5104409492 | 1 |
| 17 | (510) 440-1648 5104401648 | 1 |
About This Prefix
Phone numbers starting with (510) 440 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (440) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (440) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)