MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 34:D7:F5:5 (Acellent Technologies, Inc.)
MAC address prefix 34:D7:F5:5 is registered to Acellent Technologies, Inc., located at 835 Stewart Dr., Sunnyvale CA 94085, US. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was registered on 28 January 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
34:D7:F5:5
Registrant / Organization
Registry Chronology
Initial registration: 28 January 2026
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: United States (US)
Headquarters Registered Facility 🇺🇸 US
835 Stewart Dr.
Sunnyvale CA 94085
US.
Sunnyvale CA 94085
US.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/34d7f55 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "34D7F55",
"company": "Acellent Technologies, Inc.",
"address": "835 Stewart Dr., Sunnyvale CA 94085, US",
"country": "US",
"blockStart": "34D7F5500000",
"blockEnd": "34D7F55FFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-01-28",
"isRand": false,
"isPrivate": false
}