MAC address 28:B2:21 (Sienda Multimedia Ltd)

MAC address prefix 28:B2:21 is registered to Sienda Multimedia Ltd, located at Church Path Workshop, Stonepark, Ashburton TQ13 7RH, GB. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was registered on 31 March 2025, and no subsequent updates have been recorded.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
28:B2:21
Registrant / Organization
Sienda Multimedia Ltd
Registry Chronology
Initial registration: 31 March 2025
Assignment Classification
MA-L

(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)

Registered Location

MAC Address Vendor Country United Kingdom (GB) map
Country: United Kingdom (GB)
Headquarters Registered Facility 🇬🇧 GB
Church Path Workshop
Stonepark
Ashburton TQ13 7RH
GB.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/28b221 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "28B221",
  "company": "Sienda Multimedia Ltd",
  "address": "Church Path Workshop, Stonepark, Ashburton  TQ13 7RH, GB",
  "country": "GB",
  "blockStart": "28B221000000",
  "blockEnd": "28B221FFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2025-03-31",
  "isRand": false,
  "isPrivate": false
}