Phone Prefix
(310) 678-XXXX
CA • CMTN GRDN
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
CMTN GRDN
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
RT
Number Range
First Number
(310) 678-0000
Last Number
(310) 678-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
17 reports
17
Total FCC + FTC DNC complaints for numbers in this prefix
Top 6 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (310) 678-8003 3106788003 | 11 |
| 2 | (310) 678-3343 3106783343 | 2 |
| 3 | (310) 678-1122 3106781122 | 1 |
| 4 | (310) 678-5501 3106785501 | 1 |
| 5 | (310) 678-7863 3106787863 | 1 |
| 6 | (310) 678-8624 3106788624 | 1 |
About This Prefix
Phone numbers starting with (310) 678 are part of the North American Numbering Plan (NANP). The first three digits (310) represent the Area Code (NPA), and the next three digits (678) represent the Central Office Code (NXX) or exchange.
- NPA (310) - Numbering Plan Area, identifies the geographic region
- NXX (678) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)