MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 28:DB:81 (Shanghai Guao Electronic Technology Co., Ltd)
MAC address prefix 28:DB:81 is registered to Shanghai Guao Electronic Technology Co., Ltd, located at No.6, Alley 1225 TongPu Road, Shanghai 200333, CN. 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 02 May 2013, with the most recent update made on 17 November 2015.
Vendor & Registry Dossier
Assigned Prefix
28:DB:81
Registrant / Organization
Registry Chronology
Initial registration: 02 May 2013
Last updated: 17 November 2015
Assignment Classification
MA-L
(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)
Registered Location
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
No.6
Alley 1225 TongPu Road
Shanghai 200333
CN.
Alley 1225 TongPu Road
Shanghai 200333
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/28db81 -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "28DB81",
"company": "Shanghai Guao Electronic Technology Co., Ltd",
"address": "No.6, Alley 1225 TongPu Road, Shanghai 200333, CN",
"country": "CN",
"blockStart": "28DB81000000",
"blockEnd": "28DB81FFFFFF",
"blockSize": 16777215,
"blockType": "MA-L",
"updated": "2015-11-17",
"isRand": false,
"isPrivate": false
}