Intel holds roughly 662 IEEE blocks — one of the largest footprints in the registry, totaling on the order of 11.1 billion addresses — registered as "Intel Corporate" in Santa Clara, CA. The single most important thing to understand about an Intel OUI is that it almost always identifies the *network adapter*, not the computer's brand. Intel Wi-Fi/WLAN modules and Ethernet NICs ship inside laptops, desktops, and servers from a huge range of manufacturers, so a Dell, Lenovo, or HP laptop with an Intel wireless card will present an Intel OUI on its Wi-Fi interface — while its wired NIC might show the PC brand or a Realtek chipset. This makes Intel a chipset/component OUI, and classifying a device's vendor from it alone is a mistake. Notable adapter families behind these blocks include Intel Ethernet controllers (I210, I225/I226, X550) and Intel Wi-Fi (AX200, AX210, BE200, and the older Centrino / Wireless-AC lines). Intel holds mostly MA-L blocks plus at least one MA-S assignment, and an older "Intel Corporation" registrant string also exists historically alongside the current "Intel Corporate." For triage, Intel OUIs are ubiquitous on corporate laptops and are not by themselves a rogue-device signal — pair them with DHCP hostname, the wired-NIC OUI, or fingerprinting before drawing conclusions.
- IEEE assignment
- ~662 prefixes → Intel Corporate, registered Santa Clara, CA, US [Confirmed] — IEEE MA-L + MA-S
- Registry / block size
- MA-L plus at least one MA-S (36-bit); ~662 blocks (~11.1B addresses) [Confirmed assignments] — maclookup.app (IEEE-derived; count is a current third-party snapshot and drifts). NOTE: IEEE's public OUI data publishes NO assignment/registration date (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" from third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- Santa Clara, CA, US (some blocks list manufacturing addresses e.g. Kulim, Kedah, Malaysia) [Confirmed] — IEEE
- Company status
- active [Confirmed] — intel.com
- Device types
- network adapters — Intel Wi-Fi/WLAN modules and Ethernet NICs embedded in laptops/desktops/servers from many brands [Confirmed] — maclookup.app
- Notable products
- Intel Ethernet (I210, I225/I226, X550); Intel Wi-Fi (AX200, AX210, BE200, older Centrino/Wireless-AC)
- Verified prefix sample
- 00:1B:21, 3C:A9:F4, 94:65:9C, A4:34:D9, 7C:B0:C2 [Confirmed] — maclookup.app
- Special note
- Critical caveat — an Intel OUI identifies the NETWORK ADAPTER, not the device brand. A Dell/Lenovo/HP laptop with an Intel Wi-Fi card shows an Intel OUI on its wireless interface; the wired NIC may show the PC brand or Realtek. An older "Intel Corporation" registrant string also exists historically. [Confirmed] — maclookup.app/vendors/intel-corporate
- Related vendors
- older "Intel Corporation" registrant string (historical, same company)
- Analyst note
- Do not classify a device's vendor from an Intel OUI alone — combine with DHCP hostname, the wired-NIC OUI, or fingerprinting; Intel OUIs are ubiquitous on corporate laptops and not by themselves a rogue-device signal.