Nintendo Co., Ltd. holds 109 MA-L (24-bit OUI) blocks in the IEEE registry, all registered to the company's Kyoto headquarters at 11-1 Hokotate-cho Kamitoba, Minami-ku, Kyoto 601-8501, Japan. Every block is MA-L class — a registry sweep found zero MA-M (oui36) and zero MA-S (mam) assignments — and each MA-L block covers 16,777,216 addresses, so a single consolidated vendor entry is far more useful than 109 near-identical per-prefix pages. The allocations map exclusively to Nintendo-manufactured consumer gaming hardware: the Nintendo Switch family (standard, Lite, OLED) and Switch 2, the Wii U, the Nintendo 3DS/2DS line, and earlier Wii and DS-era platforms. These are home and personal entertainment devices, not networking infrastructure, enterprise gear, or IoT sensors, so a Nintendo OUI on a network reliably fingerprints a games console rather than business equipment. That makes the entry useful mostly for passive identification — incident response and BYOD/NAC policy work — rather than active threat hunting. The Switch family connects over 802.11b/g/n/ac (Wi-Fi 4/5) on 2.4 and 5 GHz, and supports WPA2-PSK (AES) down to legacy WEP; no public documentation describes MAC randomization on the Switch, so each console exposes a fixed System MAC Address. The console also lacks 802.1X support, so Nintendo hardware cannot join typical enterprise-secured WLANs without guest provisioning, and a Nintendo MAC on a corporate segment is a policy concern rather than an inherently malicious signal.
- IEEE assignment
- 109 prefixes → Nintendo Co., Ltd., registered Kyoto, JP [Confirmed] — IEEE MA-L (regauth.standards.ieee.org); cross-confirmed netify.ai, hwaddress.com
- Registry / block size
- MA-L (24-bit OUI) exclusively; 109 IEEE prefixes (~1.83B addresses, 16,777,216 each). Registry sweep found 0 MA-M and 0 MA-S blocks for Nintendo. [Confirmed] — local IEEE oui.csv (109 hits), mam.csv (0 hits), oui36.csv (0 hits). 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" on third-party tools (maclookup.app, adminsub.net, netify.ai) is a database ingest artifact, not an IEEE fact.
- HQ / country
- 11-1 Hokotate-cho Kamitoba, Minami-ku, Kyoto 601-8501, Japan [Confirmed] — IEEE MA-L registry address; cross-confirmed hwaddress.com
- Company status
- active [Confirmed] — nintendo.com, press.nintendo.com
- Device types
- Nintendo Switch family (standard, Lite, OLED), Switch 2, Wii U, Nintendo 3DS/2DS, Wii, DS-era platforms — consumer gaming hardware only [Confirmed] — nintendo.com/au/about, en-americas-support.nintendo.com, netify.ai
- Notable products
- Nintendo Switch / Switch 2 console line
- Verified sample prefixes (all MA-L, Nintendo Co., Ltd.)
- 00:09:BF, 00:17:AB, 00:1A:E9, 18:2A:7B, 34:AF:2C, 8C:56:C5, 9C:E6:35, A4:5C:27, CC:9E:00, E8:4E:CE [Confirmed] — IEEE MA-L / netify.ai / hwaddress.com
- Wireless capabilities
- 802.11b/g/n/ac (Wi-Fi 4/5), 2.4 GHz + 5 GHz; security WEP / WPA-PSK(AES) / WPA2-PSK(AES); fixed System MAC Address under System Settings > Internet. No publicly documented MAC randomization for Nintendo Switch as of June 2026 (left Unknown, not asserted absent). [Confirmed for supported modes; Likely for randomization-absence] — en-americas-support.nintendo.com (a_id 27645, a_id 22397)
- Registry name variants
- organization name appears in two punctuation forms in the CSV — "Nintendo Co.,Ltd" (no space, no trailing period) and "Nintendo Co., Ltd." (space, trailing period). Same legal entity, same Kyoto address. [Confirmed] — local IEEE oui.csv
- Special note
- No 802.1X (enterprise auth) support, so Switch hardware cannot join typical enterprise-secured WLANs without guest/BYOD provisioning; a Nintendo OUI on a corporate segment is a policy concern, not inherently malicious. WEP support is a legacy weakness — a network negotiating WEP with a Switch is the misconfigured party, since the console also supports WPA2-PSK(AES). [Confirmed] — en-americas-support.nintendo.com (a_id 27645)
- Related vendors
- Nintendo of America Inc. (wholly owned subsidiary, Redmond, WA; may surface separate registrations)
- Analyst note
- A Nintendo OUI conclusively identifies a personal gaming console — useful for incident response and BYOD/NAC policy. The 109 registered blocks mean most Nintendo hardware matches a known prefix. The April 2020 incident (~160,000 accounts via credential stuffing) was an account-layer breach, not a network-layer device vulnerability. MAC spoofing of a Nintendo OUI to impersonate a console is theoretically possible but has no documented attack campaigns. [Likely] — cshub.com, secureideas.com, isc.sans.edu