MAC address vendor

TATUNG Technology Inc. — 2 prefixes (MA-L)

Primary prefix
AC:6F:BB
Block
MA-L
Status
Active

Summary

// what this is
TATUNG Technology is registered to MAC prefix AC:6F:BB and 1 more in the IEEE OUI database. When a device's MAC address begins with AC:6F:BB, that block was registered by TATUNG Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Two independent MA-L assignments under one consistent org name, tied to a large, long-established Taiwanese conglomerate with documented networked-display product lines (digital signage, POS, kiosk monitors) — verifiable company substance beyond a bare single-OUI registration.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High

TATUNG Technology Inc. holds two confirmed IEEE MA-L OUI assignments — AC:6F:BB and 6C:23:16 — both registered to the exact organization name "TATUNG Technology Inc." in IEEE's public MA-L registry. The company is a business unit of Tatung Company, a major Taiwanese electronics and appliance conglomerate founded in 1918, whose legacy OUI 00:80:3F ("TATUNG COMPANY") shares the same Chungshan N. Rd., Taipei address as TATUNG Technology's older AC:6F:BB block — a strong corporate-lineage signal, though not folded into this entry since the registrant name strings differ. TATUNG Technology's more recent 6C:23:16 block carries a newer Civic Blvd., Xinyi District, Taipei address, suggesting a corporate relocation between the two registrations. Product context ties the vendor to networked, embeddable-display hardware: LCD digital signage monitors, POS/touchscreen monitors, and open-frame LCD monitors for kiosk, gaming, and public-display use, marketed in the US through a Tatung sales channel. No CVEs or security advisories specifically naming Tatung Technology or its monitor/signage/POS hardware turned up in this pass — an absence-of-findings result, not a confirmed clean record. IEEE's the IEEE MA-L registry publishes no assignment-date field for either prefix; third-party "date registered" figures (e.g. maclookup.app's 2011-09-24 and 2022-10-11) are database-scrape artifacts, not IEEE facts, and are not recorded as IEEE data here.

IEEE assignments
AC:6F:BB, 6C:23:16 → "TATUNG Technology Inc." [Confirmed] — the IEEE MA-L registry
Registry / block size
MA-L (24-bit OUI) x2; no MA-M/MA-S blocks found under this org name [Confirmed] — the IEEE MA-L registry (the IEEE MA-M registry, the IEEE MA-S registry checked, no match)
Registered addresses
AC:6F:BB → "22, Chungshan N. Rd., 3rd Sec., Taipei 104, TW"; 6C:23:16 → "Room 1000, 10F., No.288, Sec. 6, Civic Blvd., Xinyi Dist., Taipei City 11087, TW" [Confirmed] — the IEEE MA-L registry
Parent/related entity
TATUNG COMPANY (00:80:3F, MA-L) shares the AC:6F:BB street address and is likely a parent/affiliate, but is registered under a distinct org-name string and is excluded from this entry's own prefix set [Likely — relationship inferred from shared address, not a documented corporate filing] — the IEEE MA-L registry
Company identity
subsidiary/business unit of Tatung Company, a Taiwanese conglomerate founded in 1918 (electronics, appliances, motors, energy) [Confirmed — two independent angles: registry address match + company profile] — https://en.wikipedia.org/wiki/Tatung_Company, https://www.tatungtaiwan.com/
Device types
LCD digital signage monitors, POS/touchscreen monitors, open-frame LCD monitors (kiosk, gaming, public-display) [Confirmed] — https://www.legacyglobal.com/products/tatung-lcd-digital-signage-monitor/, https://www.barcodegiant.com/tatung/, https://www.geminicomputersinc.com/pos-tatung-touch-screens-monitors-panel-lcd.html
US market channel
Tatung-branded product distribution referenced in US-market product listings [Likely — single-angle web summary, no dedicated corporate-registration citation] — https://www.yumpu.com/en/document/view/48723821/digital-signage-brochure-tatung
Assignment dates
Unknown / not IEEE-published. Third-party maclookup.app lists 2011-09-24 (AC:6F:BB) and 2022-10-11 (6C:23:16), but these are database-scrape artifacts, not IEEE facts, and are not recorded as such [Confirmed absence of IEEE date field] — https://maclookup.app/vendors/tatung-technology-inc
Security advisories
none found for Tatung Technology / Tatung monitor-branded hardware in this pass [Unknown — absence of findings, not confirmed absence of vulnerabilities] — CVE/NVD-oriented web search, no results
Company status
active, per current Tatung Taiwan corporate site and live product listings [Likely] — https://www.tatungtaiwan.com/
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. AC:6F:BBMA-L
  2. 6C:23:16MA-L
[ 03 ] — Related

Keep digging.