Oracle Corporation — 17 prefixes (MA-L)

Oracle Corporation holds 17 MA-L (24-bit OUI) blocks in the IEEE registry, a footprint that is small in count but historically dense. Unlike a consumer vendor, Oracle's allocations are exclusively enterprise: SPARC and x86 servers, engineered systems (Exadata Database Machine, Private Cloud Appliance), the ZFS Storage Appliance, and the network interface cards inside those platforms. The single most recognizable prefix is 08:00:20, the canonical Sun Microsystems Ethernet OUI from the 08:00:xx range — it shipped on SPARCstation-era workstations and servers and migrated to Oracle when Oracle acquired Sun Microsystems in January 2010, along with every other Sun registration. That acquisition is why blocks once filed under Sun now read "Oracle Corporation." The registry addresses span Oracle's history: most blocks list 500 Oracle Parkway, Redwood Shores, CA 94065, while older allocations carry 17 Network Circle, Menlo Park, and a few sit at 900 Chelmsford Street, Lowell, MA, or Zarhin 13, Raanana, Israel. For network analysis, an Oracle OUI on a globally-administered address reliably signals datacenter or server-room hardware. Seeing one in an unexpected segment — a corporate workstation VLAN, say — is anomalous and worth investigating, as is legacy 08:00:20 Sun hardware that may be end-of-life and unpatched. As with all OUI work, IEEE publishes no per-prefix registration dates, so any "date registered" shown by third-party MAC lookup tools is a database artifact, not an IEEE fact.

IEEE assignment

17 MA-L prefixes → Oracle Corporation (one older block reads "Oracle"); primary registry address 500 Oracle Parkway, Redwood Shores, CA 94065, US [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI, ~16.7M addresses per block); 17 IEEE prefixes total [Confirmed] — IEEE MA-L. No MA-M or MA-S (OUI-36) blocks are assigned to Oracle Corporation; the lone MA-S hit referencing an "Oracle Campus" address belongs to Calnex Solutions plc, an unrelated entity.

Confirmed prefixes (all MA-L)

00:00:17, 00:00:7D, 00:01:5D, 00:03:BA, 00:07:82, 00:0F:4B, 00:10:4F, 00:10:E0, 00:13:97, 00:14:4F, 00:20:F2, 00:21:28, 00:21:F6, 00:A0:A4, 08:00:20, 2C:C2:60, A8:69:8C [Confirmed] — IEEE registry CSV; 16 of these also confirmed via maclookup.app (https://maclookup.app/vendors/oracle-corporation). 00:00:17 appears in the IEEE CSV but is not surfaced by the maclookup.app vendor page.

Registry addresses (historical spread)

500 Oracle Parkway, Redwood Shores, CA 94065 (most blocks); 17 Network Circle, Menlo Park, CA 95025 and 4200 Network Circle, Santa Clara, CA 95054 (older/Sun-era blocks); 900 Chelmsford Street, Lowell, MA 01851; Zarhin 13, Raanana, IL 4366241 [Confirmed] — IEEE MA-L

Company status

active [Confirmed] — oracle.com

Device types

SPARC and x86 servers (Oracle Server X8-2/X9-2, SPARC T/M-series), engineered systems and appliances (Exadata Database Machine, Private Cloud Appliance, ZFS Storage Appliance), and the NICs inside those platforms; no consumer or IoT hardware

[Confirmed] — oracle.com/servers/x86, oracle.com/storage/nas, docs.oracle.com (X8-2 service manual)

Historic / legacy prefix

08:00:20 is the canonical Sun Microsystems workstation/server OUI from the early 08:00:xx Ethernet range, documented in use on SPARCstation hardware (e.g. SPARCstation IPX); it transferred to Oracle with the January 2010 Sun acquisition

[Confirmed] — rs-online.com SPARCstation IPX restoration article; acquisition: oracle.com

Registration dates

Unknown — IEEE publishes NO per-prefix registration/assignment dates (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address). Third-party MAC lookup tools (maclookup.app) display per-prefix "registration dates" ranging ~1998-04-22 to 2020-06-27; these are scraper database artifacts, NOT IEEE facts, and must not be presented as such

[Confirmed: IEEE publishes none] — the IEEE MA-L registry, maclookup.app

Security context

an Oracle OUI on a globally-administered address strongly implies enterprise datacenter or server-room hardware (servers, storage appliances, engineered systems) or legacy Sun SPARC equipment — high-value targets. An unexpected Oracle MAC outside a datacenter segment is anomalous and warrants investigation; legacy pre-2010 Sun OUIs (08:00:20) may indicate end-of-life, unpatched systems; management-interface (ILOM) exposure is the standard enterprise-server risk vector. No Oracle-specific OUI-linked exploit or blacklist entry was found. [Likely — single-angle, infrastructure-class reasoning] — oracle.com SPARC T8/M8 architecture doc, oracle.com/servers/eol, docs.oracle.com ILOM NIC guide

Related vendors / history

Oracle acquired Sun Microsystems in January 2010; all Sun Microsystems OUI registrations (including 08:00:20) now appear under Oracle Corporation [Confirmed] — oracle.com, rs-online.com

Analyst note

an Oracle OUI reliably identifies genuine Oracle/Sun enterprise hardware for asset classification; treat it as a datacenter-class indicator, not a consumer device. Do not attribute any "registration date" to IEEE.