MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Brookhaven National Laboratory
MAC address prefix 38:B1:4E:5 is registered to Brookhaven National Laboratory, located at 741 Brookhaven AveUpton NY 11973US.
This registration is classified as MA-M (Mac Address Block Medium) containing approximately 16 million MAC addresses
The prefix was registered on 09 March 2026, and no subsequent updates have been recorded.
OUI: 38:B1:4E:5
Vendor name: Brookhaven National Laboratory
Address:
Assignment Type MA-M 741 Brookhaven Ave
Upton NY 11973
US.
Mac Address Block Medium. Number of address 2^20 (~1 Million)
Initial registration: 09 March 2026
