MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address E0:23:3B:5 (IOFAC)
MAC address prefix E0:23:3B:5 is registered to IOFAC, located at Hyundaitera Tower 1628, 8, Ori-ro 651beon-gil, Gwangmyeong-si Gyeonggi-do 14303, KR. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was registered on 11 August 2025, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
E0:23:3B:5
Registrant / Organization
Registry Chronology
Initial registration: 11 August 2025
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: South Korea (KR)
Headquarters Registered Facility 🇰🇷 KR
Hyundaitera Tower 1628
8
Ori-ro 651beon-gil
Gwangmyeong-si Gyeonggi-do 14303
KR.
8
Ori-ro 651beon-gil
Gwangmyeong-si Gyeonggi-do 14303
KR.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/e0233b5 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "E0233B5",
"company": "IOFAC",
"address": "Hyundaitera Tower 1628, 8, Ori-ro 651beon-gil, Gwangmyeong-si Gyeonggi-do 14303, KR",
"country": "KR",
"blockStart": "E0233B500000",
"blockEnd": "E0233B5FFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2025-08-11",
"isRand": false,
"isPrivate": false
}