MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 44:40:AB (ASUSTek COMPUTER INC.)
MAC address prefix 44:40:AB is registered to ASUSTek COMPUTER INC., located at 15, Li-Te Rd., Peitou, Taipei 112, Taiwan, Taipei Taiwan 112, 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 12 November 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
44:40:AB
Registrant / Organization
Registry Chronology
Initial registration: 12 November 2026
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
15
Li-Te Rd.
Peitou
Taipei 112
Taiwan
Taipei Taiwan 112
TW.
Li-Te Rd.
Peitou
Taipei 112
Taiwan
Taipei Taiwan 112
TW.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/4440ab -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "4440AB",
"company": "ASUSTek COMPUTER INC.",
"address": "15, Li-Te Rd., Peitou, Taipei 112, Taiwan, Taipei Taiwan 112, TW",
"country": "TW",
"blockStart": "4440AB000000",
"blockEnd": "4440ABFFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2026-11-12",
"isRand": false,
"isPrivate": false
}