Active Brains

MAC address prefix 64:31:39:4 is registered to Active Brains, located at Yokohama Mitsui Bldg.12F1-1-2 TakashimaNishi-kuYokohama Kanagawa 220-0011JP.

This registration is classified as MA-M (Mac Address Block Medium) containing approximately 16 million MAC addresses

The prefix was initially registered on 25 September 2019, with the most recent update made on 25 May 2023.

OUI: 64:31:39:4

Vendor name: Active Brains

Address:

Yokohama Mitsui Bldg.12F
1-1-2 Takashima
Nishi-ku
Yokohama Kanagawa 220-0011
JP.

Assignment Type MA-M

Mac Address Block Medium. Number of address 2^20 (~1 Million)

Last updated: 25 May 2023

Initial registration: 25 September 2019

MAC Address Vendor Country JP map