MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address B4:DF:43:8 (Qizhi Innovation (shenzhen) Conmmunication Technology Co., Ltd)
MAC address prefix B4:DF:43:8 is registered to Qizhi Innovation (shenzhen) Conmmunication Technology Co., Ltd, located at Room 901, Building 3, COFCO Chuangzhi Factory Area, Zone 67, Xingdong Community, Xin 'an Street, Bao' an District, Shenzhen City, Shenzhen 518000, CN. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was registered on 30 July 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
B4:DF:43:8
Registrant / Organization
Registry Chronology
Initial registration: 30 July 2026
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
Room 901
Building 3
COFCO Chuangzhi Factory Area
Zone 67
Xingdong Community
Xin 'an Street
Bao' an District
Shenzhen City
Shenzhen 518000
CN.
Building 3
COFCO Chuangzhi Factory Area
Zone 67
Xingdong Community
Xin 'an Street
Bao' an District
Shenzhen City
Shenzhen 518000
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/b4df438 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "B4DF438",
"company": "Qizhi Innovation (shenzhen) Conmmunication Technology Co., Ltd",
"address": "Room 901, Building 3, COFCO Chuangzhi Factory Area, Zone 67, Xingdong Community, Xin 'an Street, Bao' an District, Shenzhen City, Shenzhen 518000, CN",
"country": "CN",
"blockStart": "B4DF43800000",
"blockEnd": "B4DF438FFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-07-30",
"isRand": false,
"isPrivate": false
}