MAC address 38:E0:54 (Security Design, Inc.)

MAC address prefix 38:E0:54 is registered to Security Design, Inc., located at Nishiki-cho Trad Square 4F, 3-20 Kanda Nishiki-cho, Chiyoda-ku Tokyo 101-0054, JP. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was registered on 11 December 2025, and no subsequent updates have been recorded.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
38:E0:54
Registrant / Organization
Security Design, Inc.
Registry Chronology
Initial registration: 11 December 2025
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
Nishiki-cho Trad Square 4F
3-20 Kanda Nishiki-cho
Chiyoda-ku Tokyo 101-0054
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/38e054 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "38E054",
  "company": "Security Design, Inc.",
  "address": "Nishiki-cho Trad Square 4F, 3-20 Kanda Nishiki-cho, Chiyoda-ku Tokyo 101-0054, JP",
  "country": "JP",
  "blockStart": "38E054000000",
  "blockEnd": "38E054FFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2025-12-11",
  "isRand": false,
  "isPrivate": false
}