FCNT LLC — 3 prefixes (MA-L)
Summary
- // what this is
- FCNT is registered to MAC prefix
18:18:8Band 2 more in the IEEE OUI database. When a device's MAC address begins with18:18:8B, that block was registered by FCNT — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Multiple OUI blocks at one address plus a well-documented corporate history are sufficient substance to finalize this vendor rather than abstain as a single-OUI shell.
About this vendor.
A MAC address beginning 18:18:8B, E4:D3:AA, or B8:D0:F0 belongs to FCNT LLC, a Japanese mobile-device maker, and is typically found on the Wi-Fi and Bluetooth radios of Fujitsu-branded Arrows and Raku Raku smartphones and feature phones sold in Japan.
FCNT LLC is the successor to Fujitsu Connected Technologies, the division that built Fujitsu's mobile-phone business. FCNT filed for bankruptcy protection in Japan in May 2023; later that year Lenovo acquired its mobile R&D, sales, and maintenance operations and funded a successor entity that kept shipping Arrows-branded phones, such as the Arrows Alpha F-51F, into 2024 and 2025.
All three IEEE MA-L assignments register to FCNT LLC at the same address — the Sanki Yamato Building in Yamato, Kanagawa, Japan — confirmed in the local IEEE registry snapshot and live-verified individually against macvendors.com on 2026-07-31. Holding multiple OUI blocks at one address is itself a substance signal distinguishing FCNT from a bare single-block shell registrant.
No source was found tying any of the three specific hex prefixes to a named device model in the field, so the device-class attribution rests on the registrant's identity rather than an observed sighting. Any "registration date" shown by third-party lookup tools like maclookup.app is a database artifact, not an IEEE-published fact, and is not carried into this entry.
- IEEE assignment
- 3 prefixes → FCNT LLC, registered Yamato, Kanagawa, JP [Confirmed] — the IEEE MA-L registry (rows 6684, 22589, 38450)
- Registry / block size
- MA-L (48-bit OUI); holds 3 IEEE prefixes [Confirmed] — the IEEE MA-L registry; live-verified via macvendors.com API
- HQ / country
- Sanki Yamato Building, 7-10-1 Chuorinkan, Yamato, Kanagawa 242-8588, Japan [Confirmed] — the IEEE MA-L registry
- Company status
- active (Lenovo-affiliated successor entity, continuing Arrows-branded phone releases) [Confirmed] — wraltechwire.com (2023-10-02), notebookcheck.net
- Device types
- smartphones and feature phones (Arrows, Raku Raku lines) [Likely] — inferred from company identity; no source ties a specific prefix to a named device
- Notable products
- Arrows Alpha F-51F and other Arrows-branded smartphones [Confirmed] — notebookcheck.net
- Verified sample prefixes (all MA-L, FCNT LLC)
- 18:18:8B, E4:D3:AA, B8:D0:F0 [Confirmed] — the IEEE MA-L registry; macvendors.com API (live-verified 2026-07-31)
- Special note
- A "registration date" shown by third-party tools (e.g. maclookup.app: "Initial registration 03 November 2020" for 18:18:8B) is a database artifact of that tool, not an IEEE-published fact — IEEE's the IEEE MA-L registry carries no date column. Do not display it as an IEEE registration date.[Confirmed] — maclookup.app; IEEE the IEEE MA-L registry schema
- Related vendors
- Fujitsu (former parent; Fujitsu Connected Technologies predecessor), Lenovo (acquired FCNT's mobile business in 2023) [Confirmed] — wraltechwire.com
- Analyst note
- Company substance beyond a bare shell registration — three OUI blocks at one address plus a well-documented corporate history (Fujitsu mobile spinoff, 2023 bankruptcy, Lenovo-funded successor) support treating this as a genuine multi-prefix vendor entry rather than a single-OUI shell.