MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address A4:1C:B4 (DFI Inc)
MAC address prefix A4:1C:B4 is registered to DFI Inc, located at No.157, Shanying Rd., Gueishan Dist., Taoyuan City 333424, Taiwan (R.O.C.), Taoyuan City 333424, TW. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was registered on 01 June 2022, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
A4:1C:B4
Registrant / Organization
Registry Chronology
Initial registration: 01 June 2022
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: Taiwan (TW)
Headquarters Registered Facility 🇹🇼 TW
No.157
Shanying Rd.
Gueishan Dist.
Taoyuan City 333424
Taiwan (R.O.C.)
Taoyuan City 333424
TW.
Shanying Rd.
Gueishan Dist.
Taoyuan City 333424
Taiwan (R.O.C.)
Taoyuan City 333424
TW.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/a41cb4 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "A41CB4",
"company": "DFI Inc",
"address": "No.157, Shanying Rd., Gueishan Dist., Taoyuan City 333424, Taiwan (R.O.C.), Taoyuan City 333424, TW",
"country": "TW",
"blockStart": "A41CB4000000",
"blockEnd": "A41CB4FFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2022-06-01",
"isRand": false,
"isPrivate": false
}