MAC address E4:FB:1E (Microsoft Corporation)

MAC address prefix E4:FB:1E is registered to Microsoft Corporation, located at One Microsoft Way, REDMOND WA 98052, US. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was registered on 06 March 2026, and no subsequent updates have been recorded.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
E4:FB:1E
Registrant / Organization
Microsoft Corporation
Registry Chronology
Initial registration: 06 March 2026
Assignment Classification
MA-L

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

Registered Location

MAC Address Vendor Country United States (US) map
Country: United States (US)
Headquarters Registered Facility 🇺🇸 US
One Microsoft Way
REDMOND WA 98052
US.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/e4fb1e -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "E4FB1E",
  "company": "Microsoft Corporation",
  "address": "One Microsoft Way, REDMOND WA 98052, US",
  "country": "US",
  "blockStart": "E4FB1E000000",
  "blockEnd": "E4FB1EFFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2026-03-06",
  "isRand": false,
  "isPrivate": false
}