MAC address B4:DF:43:E (Shanghai Wellsun New Energy Co.,Ltd.)

MAC address prefix B4:DF:43:E is registered to Shanghai Wellsun New Energy Co.,Ltd., located at Room 307, 3rd Floor, Building 1, No. 155 Fengxiang Road, Baoshan District, Shanghai City, P.R.China, Shanghai 201999, 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 30 July 2026, and no subsequent updates have been recorded.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
B4:DF:43:E
Registrant / Organization
Shanghai Wellsun New Energy Co.,Ltd.
Registry Chronology
Initial registration: 30 July 2026
Assignment Classification
MA-M

(MAC Address Block Medium) containing 1,048,576 MAC addresses (2^20)

Registered Location

MAC Address Vendor Country China (CN) map
Country: China (CN)
Headquarters Registered Facility 🇨🇳 CN
Room 307
3rd Floor
Building 1
No. 155 Fengxiang Road
Baoshan District
Shanghai City
P.R.China
Shanghai 201999
CN.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/b4df43e -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "B4DF43E",
  "company": "Shanghai Wellsun New Energy Co.,Ltd.",
  "address": "Room 307, 3rd Floor, Building 1, No. 155 Fengxiang Road, Baoshan District, Shanghai City, P.R.China, Shanghai  201999, CN",
  "country": "CN",
  "blockStart": "B4DF43E00000",
  "blockEnd": "B4DF43EFFFFF",
  "blockSize": 1048575,
  "blockType": "MA-M",
  "updated": "2026-07-30",
  "isRand": false,
  "isPrivate": false
}