MAC address 00:21:BB (Riken Keiki Co., Ltd.)

MAC address prefix 00:21:BB is registered to Riken Keiki Co., Ltd., located at 2-7-6 Azusawa, Itabashi-Ku Tokyo 174-8744, 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 25 October 2008, with the most recent update made on 17 November 2015.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
00:21:BB
Registrant / Organization
Riken Keiki Co., Ltd.
Registry Chronology
Initial registration: 25 October 2008
Last updated: 17 November 2015
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
2-7-6 Azusawa
Itabashi-Ku Tokyo 174-8744
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/0021bb -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "0021BB",
  "company": "Riken Keiki Co., Ltd.",
  "address": "2-7-6 Azusawa, Itabashi-Ku Tokyo 174-8744, JP",
  "country": "JP",
  "blockStart": "0021BB000000",
  "blockEnd": "0021BBFFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2015-11-17",
  "isRand": false,
  "isPrivate": false
}