MAC address 50:41:B9 (I-O DATA, INC.)

MAC address prefix 50:41:B9 is registered to I-O DATA, INC., located at 3-10, Sakurada-machi, Kanazawa Ishikawa 920-8512, JP. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was initially registered on 29 January 2019, with the most recent update made on 02 July 2026.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
50:41:B9
Registrant / Organization
I-O DATA, INC.
Registry Chronology
Initial registration: 29 January 2019
Last updated: 02 July 2026
Assignment Classification
MA-L

(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)

Registered Location

MAC Address Vendor Country Japan (JP) map
Country: Japan (JP)
Headquarters Registered Facility 🇯🇵 JP
3-10
Sakurada-machi
Kanazawa Ishikawa 920-8512
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/5041b9 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "5041B9",
  "company": "I-O DATA, INC.",
  "address": "3-10, Sakurada-machi, Kanazawa Ishikawa 920-8512, JP",
  "country": "JP",
  "blockStart": "5041B9000000",
  "blockEnd": "5041B9FFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2026-07-02",
  "isRand": false,
  "isPrivate": false
}