MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 00:0F:5B (Delta Information Systems, Inc.)
MAC address prefix 00:0F:5B is registered to Delta Information Systems, Inc., located at 300 Welsh Road, Bldg. 3, Horsham PA 19044-2273, US. 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 12 February 2004, with the most recent update made on 17 November 2015.
Vendor & Registry Dossier
Assigned Prefix
00:0F:5B
Registrant / Organization
Registry Chronology
Initial registration: 12 February 2004
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 States (US)
Headquarters Registered Facility 🇺🇸 US
300 Welsh Road
Bldg. 3
Horsham PA 19044-2273
US.
Bldg. 3
Horsham PA 19044-2273
US.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/000f5b -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "000F5B",
"company": "Delta Information Systems, Inc.",
"address": "300 Welsh Road, Bldg. 3, Horsham PA 19044-2273, US",
"country": "US",
"blockStart": "000F5B000000",
"blockEnd": "000F5BFFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2015-11-17",
"isRand": false,
"isPrivate": false
}