Mac address for 284121
- Company / Vendor
- OptiSense Network, LLC
- Prefix
- 284121
- Database Type
- IEEE MA-L
- Start Mac Address
- 284121000000
- End Mac Address
- 284121FFFFFF
- Company Address
-
1308 10th Street
Bridgeport TX 76426
United States 🇺🇸 - Possible Devices
-
16777216
This number represents the possible device number that can be manufactured using this mac address, but doesn't mean it is all has been manufactured yet
- Link
- 284121
Every network device's MAC address starts with a 3-byte OUI (Organizationally Unique Identifier) assigned by the IEEE to its manufacturer. This tool takes a MAC address and looks up that prefix against the official registry to tell you which company made the network hardware.
Looking up a MAC address like this returns the registered manufacturer:
3C:5A:B4:12:34:56
→
Google, Inc.
Can a MAC address reveal my exact device model?
No — it identifies the manufacturer (the OUI), not the specific model or any personal information about the device owner.
Why does the lookup fail for some addresses?
Locally-administered or randomized MAC addresses (common on modern phones for privacy) don't map to a registered manufacturer, so no vendor will be found for those.
Where does the vendor data come from?
From the IEEE's public OUI registry, which manufacturers register with when they're assigned blocks of MAC addresses.
Does this tool store the addresses I look up?
The lookup exists to identify the device vendor for troubleshooting or network inventory purposes, not to track or log individual users.