MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address C4:FF:BC:4 (HyperNet CO., LTD)
MAC address prefix C4:FF:BC:4 is registered to HyperNet CO., LTD, located at 5F., No.16, Lane 15, Sec. 6, Mincyuan E. Rd., Neihu District, TAIPEI 114, TW. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was initially registered on 28 October 2017, with the most recent update made on 13 March 2026.
Vendor & Registry Dossier
Assigned Prefix
C4:FF:BC:4
Registrant / Organization
Registry Chronology
Initial registration: 28 October 2017
Last updated: 13 March 2026
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: Taiwan (TW)
Headquarters Registered Facility 🇹🇼 TW
5F.
No.16
Lane 15
Sec. 6
Mincyuan E. Rd.
Neihu District
TAIPEI 114
TW.
No.16
Lane 15
Sec. 6
Mincyuan E. Rd.
Neihu District
TAIPEI 114
TW.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/c4ffbc4 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "C4FFBC4",
"company": "HyperNet CO., LTD",
"address": "5F., No.16, Lane 15, Sec. 6, Mincyuan E. Rd., Neihu District, TAIPEI 114, TW",
"country": "TW",
"blockStart": "C4FFBC400000",
"blockEnd": "C4FFBC4FFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-03-13",
"isRand": false,
"isPrivate": false
}