MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 8C:1F:64:5F:4 (Jiangsu Yi Rong Mstar Technology Ltd.)
MAC address prefix 8C:1F:64:5F:4 is registered to Jiangsu Yi Rong Mstar Technology Ltd., located at Building 1-4, No. 9, Yongfu Road, Dafeng Economic Development Zone, Yancheng City Jiangsu 224199, CN. This registration is classified as MA-S (MAC Address Block Small, formerly known as OUI-36) containing 4,096 MAC addresses (2^12). The prefix was registered on 16 April 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
8C:1F:64:5F:4
Registrant / Organization
Registry Chronology
Initial registration: 16 April 2026
Assignment Classification
MA-S
(MAC Address Block Small, formerly known as OUI-36) containing 4,096 MAC addresses (2^12)
Registered Location
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
Building 1-4
No. 9
Yongfu Road
Dafeng Economic Development Zone
Yancheng City Jiangsu 224199
CN.
No. 9
Yongfu Road
Dafeng Economic Development Zone
Yancheng City Jiangsu 224199
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/8c1f645f4 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "8C1F645F4",
"company": "Jiangsu Yi Rong Mstar Technology Ltd.",
"address": "Building 1-4, No. 9, Yongfu Road, Dafeng Economic Development Zone, Yancheng City Jiangsu 224199, CN",
"country": "CN",
"blockStart": "8C1F645F4000",
"blockEnd": "8C1F645F4FFF",
"blockSize": 4095,
"blockType": "MA-S",
"updated": "2026-04-16",
"isRand": false,
"isPrivate": false
}