MAC address 4C:23:1A (Extreme Networks, Inc.)

MAC address prefix 4C:23:1A is registered to Extreme Networks, Inc., located at 6480 Via Del Oro, San Jose CA 95119, US. 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 24 December 2022, with the most recent update made on 26 June 2026.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
4C:23:1A
Registrant / Organization
Extreme Networks, Inc.
Registry Chronology
Initial registration: 24 December 2022
Last updated: 26 June 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
6480 Via Del Oro
San Jose CA 95119
US.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/4c231a -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "4C231A",
  "company": "Extreme Networks, Inc.",
  "address": "6480 Via Del Oro, San Jose CA 95119, US",
  "country": "US",
  "blockStart": "4C231A000000",
  "blockEnd": "4C231AFFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2026-06-26",
  "isRand": false,
  "isPrivate": false
}