Phone Prefix
(650) 278-XXXX
CA • SSNFRNCSCO
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
SSNFRNCSCO
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
RT
Number Range
First Number
(650) 278-0000
Last Number
(650) 278-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
48 reports
48
Total FCC + FTC DNC complaints for numbers in this prefix
Top 17 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (650) 278-4402 6502784402 | 26 |
| 2 | (650) 278-8003 6502788003 | 4 |
| 3 | (650) 278-4439 6502784439 | 2 |
| 4 | (650) 278-3170 6502783170 | 2 |
| 5 | (650) 278-4298 6502784298 | 2 |
| 6 | (650) 278-4471 6502784471 | 1 |
| 7 | (650) 278-4741 6502784741 | 1 |
| 8 | (650) 278-4911 6502784911 | 1 |
| 9 | (650) 278-8103 6502788103 | 1 |
| 10 | (650) 278-8242 6502788242 | 1 |
| 11 | (650) 278-8504 6502788504 | 1 |
| 12 | (650) 278-0074 6502780074 | 1 |
| 13 | (650) 278-9400 6502789400 | 1 |
| 14 | (650) 278-0905 6502780905 | 1 |
| 15 | (650) 278-2465 6502782465 | 1 |
| 16 | (650) 278-4408 6502784408 | 1 |
| 17 | (650) 278-4424 6502784424 | 1 |
About This Prefix
Phone numbers starting with (650) 278 are part of the North American Numbering Plan (NANP). The first three digits (650) represent the Area Code (NPA), and the next three digits (278) represent the Central Office Code (NXX) or exchange.
- NPA (650) - Numbering Plan Area, identifies the geographic region
- NXX (278) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)