Phone Prefix
(510) 438-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) 438-0000
Last Number
(510) 438-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
12 reports
12
Total FCC + FTC DNC complaints for numbers in this prefix
Top 11 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (510) 438-1621 5104381621 | 2 |
| 2 | (510) 438-1636 5104381636 | 1 |
| 3 | (510) 438-2609 5104382609 | 1 |
| 4 | (510) 438-3179 5104383179 | 1 |
| 5 | (510) 438-3243 5104383243 | 1 |
| 6 | (510) 438-3837 5104383837 | 1 |
| 7 | (510) 438-3960 5104383960 | 1 |
| 8 | (510) 438-9294 5104389294 | 1 |
| 9 | (510) 438-9300 5104389300 | 1 |
| 10 | (510) 438-0877 5104380877 | 1 |
| 11 | (510) 438-9970 5104389970 | 1 |
About This Prefix
Phone numbers starting with (510) 438 are part of the North American Numbering Plan (NANP). The first three digits (510) represent the Area Code (NPA), and the next three digits (438) represent the Central Office Code (NXX) or exchange.
- NPA (510) - Numbering Plan Area, identifies the geographic region
- NXX (438) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)