MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 8C:1F:64:D5:A (Realtek Semiconductor Corp.)
MAC address prefix 8C:1F:64:D5:A is registered to Realtek Semiconductor Corp., located at No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Guangdong 300, 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 29 August 2025, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
8C:1F:64:D5:A
Registrant / Organization
Registry Chronology
Initial registration: 29 August 2025
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
No. 2
Innovation Road II
Hsinchu Science Park
Hsinchu 300
Taiwan Guangdong 300
CN.
Innovation Road II
Hsinchu Science Park
Hsinchu 300
Taiwan Guangdong 300
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/8c1f64d5a -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "8C1F64D5A",
"company": "Realtek Semiconductor Corp.",
"address": "No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Guangdong 300, CN",
"country": "CN",
"blockStart": "8C1F64D5A000",
"blockEnd": "8C1F64D5AFFF",
"blockSize": 4095,
"blockType": "MA-S",
"updated": "2025-08-29",
"isRand": false,
"isPrivate": false
}