MAC address 00:0C:21 (Faculty of Science and Technology, Keio University)

MAC address prefix 00:0C:21 is registered to Faculty of Science and Technology, Keio University, located at 3-14-1 Hiyoshi, Kohoku-ku, Yokohama Kanagawa 223-8522, 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 07 February 2003, with the most recent update made on 17 November 2015.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
00:0C:21
Registry Chronology
Initial registration: 07 February 2003
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
3-14-1 Hiyoshi
Kohoku-ku
Yokohama Kanagawa 223-8522
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/000c21 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "000C21",
  "company": "Faculty of Science and Technology, Keio University",
  "address": "3-14-1 Hiyoshi, Kohoku-ku, Yokohama Kanagawa 223-8522, JP",
  "country": "JP",
  "blockStart": "000C21000000",
  "blockEnd": "000C21FFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2015-11-17",
  "isRand": false,
  "isPrivate": false
}