MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 98:3B:8A (Sekisui Jushi CAP-AI System Co.,Ltd.)
MAC address prefix 98:3B:8A is registered to Sekisui Jushi CAP-AI System Co.,Ltd., located at Mandai Mita Building 2F, 3-2-3 Mita, Minato-ku, Tokyo 108-0073, JP. 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 March 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
98:3B:8A
Registrant / Organization
Registry Chronology
Initial registration: 12 March 2026
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: Japan (JP)
Headquarters Registered Facility 🇯🇵 JP
Mandai Mita Building 2F
3-2-3 Mita
Minato-ku
Tokyo 108-0073
JP.
3-2-3 Mita
Minato-ku
Tokyo 108-0073
JP.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/983b8a -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "983B8A",
"company": "Sekisui Jushi CAP-AI System Co.,Ltd.",
"address": "Mandai Mita Building 2F, 3-2-3 Mita, Minato-ku, Tokyo 108-0073, JP",
"country": "JP",
"blockStart": "983B8A000000",
"blockEnd": "983B8AFFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2026-03-12",
"isRand": false,
"isPrivate": false
}