MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 04:39:CB (Qingdao HaierTechnology Co.,Ltd)
MAC address prefix 04:39:CB is registered to Qingdao HaierTechnology Co.,Ltd, located at Building C01, Haier Information Park, No.1 Haier Road, Qingdao 266101, CN. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was registered on 14 October 2025, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
04:39:CB
Registrant / Organization
Registry Chronology
Initial registration: 14 October 2025
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
Building C01
Haier Information Park
No.1 Haier Road
Qingdao 266101
CN.
Haier Information Park
No.1 Haier Road
Qingdao 266101
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/0439cb -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "0439CB",
"company": "Qingdao HaierTechnology Co.,Ltd",
"address": "Building C01, Haier Information Park, No.1 Haier Road, Qingdao 266101, CN",
"country": "CN",
"blockStart": "0439CB000000",
"blockEnd": "0439CBFFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2025-10-14",
"isRand": false,
"isPrivate": false
}