MAC address 44:38:8C (Sumitomo Electric Industries, Ltd)

MAC address prefix 44:38:8C is registered to Sumitomo Electric Industries, Ltd, located at 1-1-3, Shimaya, Konohana-ku, Osaka 554-0024, 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 27 June 2025, and no subsequent updates have been recorded.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
44:38:8C
Registrant / Organization
Sumitomo Electric Industries, Ltd
Registry Chronology
Initial registration: 27 June 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
1-1-3
Shimaya
Konohana-ku
Osaka 554-0024
JP.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/44388c -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "44388C",
  "company": "Sumitomo Electric Industries, Ltd",
  "address": "1-1-3, Shimaya, Konohana-ku, Osaka  554-0024, JP",
  "country": "JP",
  "blockStart": "44388C000000",
  "blockEnd": "44388CFFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2025-06-27",
  "isRand": false,
  "isPrivate": false
}