MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address A4:4F:3E:A (CMCNI Co., Ltd)
MAC address prefix A4:4F:3E:A is registered to CMCNI Co., Ltd, located at B-601 Hangang Xi TowerYangcheonro 401Gangseogu, Seoul 07528, KR. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was registered on 24 April 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
A4:4F:3E:A
Registrant / Organization
Registry Chronology
Initial registration: 24 April 2026
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: South Korea (KR)
Headquarters Registered Facility 🇰🇷 KR
B-601 Hangang Xi TowerYangcheonro 401Gangseogu
Seoul 07528
KR.
Seoul 07528
KR.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/a44f3ea -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "A44F3EA",
"company": "CMCNI Co., Ltd",
"address": "B-601 Hangang Xi TowerYangcheonro 401Gangseogu, Seoul 07528, KR",
"country": "KR",
"blockStart": "A44F3EA00000",
"blockEnd": "A44F3EAFFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-04-24",
"isRand": false,
"isPrivate": false
}