MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 00:21:AC (Infrared Integrated Systems Ltd)
MAC address prefix 00:21:AC is registered to Infrared Integrated Systems Ltd, located at Park Circle, Tithe Barn Way, Northampton Northants NN4 9BG, GB. 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 25 October 2008, with the most recent update made on 17 November 2015.
Vendor & Registry Dossier
Assigned Prefix
00:21:AC
Registrant / Organization
Registry Chronology
Initial registration: 25 October 2008
Last updated: 17 November 2015
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: United Kingdom (GB)
Headquarters Registered Facility 🇬🇧 GB
Park Circle
Tithe Barn Way
Northampton Northants NN4 9BG
GB.
Tithe Barn Way
Northampton Northants NN4 9BG
GB.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/0021ac -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "0021AC",
"company": "Infrared Integrated Systems Ltd",
"address": "Park Circle, Tithe Barn Way, Northampton Northants NN4 9BG, GB",
"country": "GB",
"blockStart": "0021AC000000",
"blockEnd": "0021ACFFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2015-11-17",
"isRand": false,
"isPrivate": false
}