MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 38:B1:4E:7 (NACE)
MAC address prefix 38:B1:4E:7 is registered to NACE, located at 1085 Andrew dr, West Chester PA 19380, 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 03 March 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
38:B1:4E:7
Registrant / Organization
Registry Chronology
Initial registration: 03 March 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
1085 Andrew dr
West Chester PA 19380
US.
West Chester PA 19380
US.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/38b14e7 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "38B14E7",
"company": "NACE",
"address": "1085 Andrew dr, West Chester PA 19380, US",
"country": "US",
"blockStart": "38B14E700000",
"blockEnd": "38B14E7FFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-03-03",
"isRand": false,
"isPrivate": false
}