MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 40:D8:55:11:3 (Testbook Ltd)
MAC address prefix 40:D8:55:11:3 is registered to Testbook Ltd, located at 7 Midshires Business Park, Alyesbury Bucks HP19 8HL, GB. This registration is classified as IAB (Individual Address Block). The prefix was initially registered on 29 August 2013, with the most recent update made on 29 August 2015.
Vendor & Registry Dossier
Assigned Prefix
40:D8:55:11:3
Registrant / Organization
Registry Chronology
Initial registration: 29 August 2013
Last updated: 29 August 2015
Assignment Classification
IAB
(Individual Address Block)
Registered Location
Country: United Kingdom (GB)
Headquarters Registered Facility 🇬🇧 GB
7 Midshires Business Park
Alyesbury Bucks HP19 8HL
GB.
Alyesbury Bucks HP19 8HL
GB.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/40d855113 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "40D855113",
"company": "Testbook Ltd",
"address": "7 Midshires Business Park, Alyesbury Bucks HP19 8HL, GB",
"country": "GB",
"blockStart": "40D855113000",
"blockEnd": "40D855113FFF",
"blockSize": 4095,
"blockType": "IAB",
"updated": "2015-08-29",
"isRand": false,
"isPrivate": false
}