MAC address 64:31:39:4 (Active Brains)

MAC address prefix 64:31:39:4 is registered to Active Brains, located at Yokohama Mitsui Bldg.12F, 1-1-2 Takashima, Nishi-ku, Yokohama Kanagawa 220-0011, JP. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was initially registered on 25 September 2019, with the most recent update made on 25 May 2023.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
64:31:39:4
Registrant / Organization
Active Brains
Registry Chronology
Initial registration: 25 September 2019
Last updated: 25 May 2023
Assignment Classification
MA-M

(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)

Registered Location

MAC Address Vendor Country Japan (JP) map
Country: Japan (JP)
Headquarters Registered Facility 🇯🇵 JP
Yokohama Mitsui Bldg.12F
1-1-2 Takashima
Nishi-ku
Yokohama Kanagawa 220-0011
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/6431394 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "6431394",
  "company": "Active Brains",
  "address": "Yokohama Mitsui Bldg.12F, 1-1-2 Takashima, Nishi-ku, Yokohama Kanagawa 220-0011, JP",
  "country": "JP",
  "blockStart": "643139400000",
  "blockEnd": "6431394FFFFF",
  "blockSize": 1048575,
  "blockType": "MA-M",
  "updated": "2023-05-25",
  "isRand": false,
  "isPrivate": false
}