MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address B4:E9:A3 (port industrial automation GmbH)
MAC address prefix B4:E9:A3 is registered to port industrial automation GmbH, located at Regensburger Str. 7b, Halle (S.) 06132, DE. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was initially registered on 31 October 2017, with the most recent update made on 24 August 2019.
Vendor & Registry Dossier
Assigned Prefix
B4:E9:A3
Registrant / Organization
Registry Chronology
Initial registration: 31 October 2017
Last updated: 24 August 2019
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: Germany (DE)
Headquarters Registered Facility 🇩🇪 DE
Regensburger Str. 7b
Halle (S.) 06132
DE.
Halle (S.) 06132
DE.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/b4e9a3 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "B4E9A3",
"company": "port industrial automation GmbH",
"address": "Regensburger Str. 7b, Halle (S.) 06132, DE",
"country": "DE",
"blockStart": "B4E9A3000000",
"blockEnd": "B4E9A3FFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2019-08-24",
"isRand": false,
"isPrivate": false
}