MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address 50:19:11:B (Sichuan Wanwu Zongheng Technology Co., Ltd.)
MAC address prefix 50:19:11:B is registered to Sichuan Wanwu Zongheng Technology Co., Ltd., located at No. 1, 7th Floor, Building 12, No. 1388, Middle Tianfu Avenue, Chengdu High-tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu Sichuan 610041, CN. This registration is classified as MA-M (MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20). The prefix was registered on 25 June 2026, and no subsequent updates have been recorded.
Vendor & Registry Dossier
Assigned Prefix
50:19:11:B
Registrant / Organization
Registry Chronology
Initial registration: 25 June 2026
Assignment Classification
MA-M
(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)
Registered Location
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
No. 1
7th Floor
Building 12
No. 1388
Middle Tianfu Avenue
Chengdu High-tech Zone
China (Sichuan) Pilot Free Trade Zone
Chengdu Sichuan 610041
CN.
7th Floor
Building 12
No. 1388
Middle Tianfu Avenue
Chengdu High-tech Zone
China (Sichuan) Pilot Free Trade Zone
Chengdu Sichuan 610041
CN.
REST API v2
200 OK
CLI
curl -s https://api.maclookup.app/v2/macs/501911b -H 'Accept: application/json'{
"success": true,
"found": true,
"macPrefix": "501911B",
"company": "Sichuan Wanwu Zongheng Technology Co., Ltd.",
"address": "No. 1, 7th Floor, Building 12, No. 1388, Middle Tianfu Avenue, Chengdu High-tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu Sichuan 610041, CN",
"country": "CN",
"blockStart": "501911B00000",
"blockEnd": "501911BFFFFF",
"blockSize": 1048575,
"blockType": "MA-M",
"updated": "2026-06-25",
"isRand": false,
"isPrivate": false
}