Sharp holds about 21 IEEE blocks — MA-L plus a CID assignment — registered as "SHARP CORPORATION" at 1 Takumi-cho, Sakai-ku, Sakai City, Osaka, Japan. A verified sample is 90:E4:B0. These OUIs appear across a broad product range: MFPs and printers (Sharp business document systems), TVs and displays (Aquos), home appliances, calculators, and legacy phones. A relevant ownership note: Foxconn (Hon Hai Precision) acquired a 66% controlling stake in Sharp for about ¥388.8 billion (~US$3.5 billion), with the revised bid announced 30 March 2016 and the deal finalized in August 2016 — but Sharp retains its own IEEE registrant distinct from Foxconn, and a Sharp OUI maps to the Sharp brand. Because Sharp is a multi-product maker, the OUI is ambiguous across product class: a given Sharp device could be an MFP, a TV/display, or an appliance. For triage, a Sharp OUI is ambiguous across product class, so correlate it with port usage and traffic behavior to classify the asset.
- IEEE assignment
- ~21 blocks → "SHARP CORPORATION" (MA-L + a CID), registered Sakai City, Osaka, Japan [Confirmed] — IEEE MA-L/CID
- Registry / block size
- MA-L + a CID; ~21 blocks [Confirmed] — maclookup.app / devicekb.com (IEEE-derived). 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
- 1 Takumi-cho, Sakai-ku, Sakai City, Osaka 590-8522, Japan [Confirmed] — maclookup.app
- Company status
- active; Foxconn (Hon Hai) acquired a 66% controlling stake for ~¥388.8B (~US$3.5B); revised bid announced 2016-03-30, finalized August 2016 [Confirmed] — AFP/Rappler, pv-magazine
- Device types
- MFPs/printers, TVs/displays (Aquos), appliances, calculators, legacy phones [Confirmed] — maclookup.app
- Notable products
- Aquos displays/TVs, Sharp business document systems (MFPs)
- Verified prefix sample
- 90:E4:B0 [Confirmed] — devicekb.com
- Special note
- Multi-product vendor; Sharp retains its own IEEE registrant distinct from Foxconn (which acquired 66% in 2016), and the OUI maps to the Sharp brand. [Confirmed]
- Related vendors
- Foxconn / Hon Hai (66% owner since 2016)
- Analyst note
- A Sharp OUI is ambiguous across product class (could be an MFP, a TV/display, or an appliance); correlate with port usage/traffic behavior to classify the asset.