Phone Prefix
(408) 743-XXXX
CA • SUNNYVALE
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
SUNNYVALE
Assigned To
PACIFIC BELL
OCN
9740
Status
RT
Number Range
First Number
(408) 743-0000
Last Number
(408) 743-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
3 reports
3
Total FCC + FTC DNC complaints for numbers in this prefix
Top 3 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (408) 743-1950 4087431950 | 1 |
| 2 | (408) 743-6265 4087436265 | 1 |
| 3 | (408) 743-7436 4087437436 | 1 |
About This Prefix
Phone numbers starting with (408) 743 are part of the North American Numbering Plan (NANP). The first three digits (408) represent the Area Code (NPA), and the next three digits (743) represent the Central Office Code (NXX) or exchange.
- NPA (408) - Numbering Plan Area, identifies the geographic region
- NXX (743) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)