NEC Corporation — 9 prefixes (MA-L)

NEC Corporation holds 9 MA-L (24-bit OUI) blocks registered under the exact organization string "NEC Corporation" in Japan. This entry targets the Tokyo-headquartered parent multinational — founded in 1899 and one of Japan's oldest and largest IT and electronics companies — and is distinct from NEC Platforms, Ltd., the 2014-founded hardware-manufacturing subsidiary already covered as its own consolidated vendor entry with zero prefix overlap. No registry record uses the bare string "NEC"; per the producer's established consolidate-by-exact-org-name convention, the slug "vendor-nec" resolves to the single registrant string "NEC Corporation" — the only "NEC Corporation" registrant in IEEE the IEEE MA-L registry, holding all nine MA-L blocks, with no bare "NEC" registrant anywhere in the IEEE MA-L registry/mam.csv/oui36.csv. The nine blocks split across three registry addresses: the primary and current HQ, 7-1, Shiba 5-chome, Minato-ku, Tokyo 108-8001 (six blocks); a secondary site at 1753 Shimonumabe, Nakahara-ku, Kawasaki, Kanagawa 211-8666 (two blocks); and an older-format Fuchu, Tokyo registration (one block) that predates the current address. Corroborating web sources place NEC Corporation-branded hardware — UNIVERGE IX enterprise routers, WebSAM Deployment Manager, and Aterm-branded Wi-Fi routers such as the WG1800HP4, WG2600HS, and WX1500HP — against this footprint, and NEC's own official corporate page confirms the Shiba address as current HQ. The line carries an active, current CVE trail spanning 2024–2025, including a Critical-severity (CVSS 9.8) cluster in the WG1800HP4 series.

IEEE assignment

9 prefixes → NEC Corporation, registered Japan [Confirmed] — the IEEE MA-L registry (IEEE MA-L)

Slug-to-org mapping

"vendor-nec" resolves to the single IEEE registrant string "NEC Corporation" per the producer's consolidate-by-exact-org-name convention; IEEE the IEEE MA-L registry contains exactly one "NEC Corporation" registrant (9 MA-L blocks) and no bare "NEC" registrant in the IEEE MA-L registry/mam.csv/oui36.csv

[Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

Registry / block size

MA-L only; 9 IEEE prefixes. No MA-M or MA-S (oui36) blocks match the exact org string "NEC Corporation" [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

Japan; primary registry address 7-1, Shiba 5-chome, Minato-ku, Tokyo 108-8001, JP (6 blocks: D4:92:34, 8C:DF:9D, 00:16:97, F8:CA:85, 00:00:4C, 74:3A:65); secondary 1753 Shimonumabe, Nakahara-ku, Kawasaki, Kanagawa 211-8666, JP (2 blocks: 58:C2:32, 00:25:5C); older-format 1-10 Nisshincho, Fuchu, Tokyo 183-8501, JP (1 block: 00:30:13)

[Confirmed] — the IEEE MA-L registry; corroborated by https://www.nec.com/en/global/about/branch/headquarter.html

Company status

active [Confirmed] — https://www.nec.com/en/global/about/branch/headquarter.html

Parent/subsidiary relationship

distinct from NEC Platforms, Ltd. (established 2014-07-01, own DONE entry); the two entries' prefix sets have zero overlap [Confirmed] — /mac/vendor/nec-platforms/, https://www.necplatforms.co.jp/en/press/201405/20140527_01.html

Device types

UNIVERGE IX enterprise routers, WebSAM Deployment Manager (enterprise IT management), Aterm-branded Wi-Fi routers (WG1800HP4, WG2600HS, WX1500HP) [Likely] — https://www.cvedetails.com/vulnerability-list/vendor_id-40/NEC.html (third-party aggregation; direct IEEE prefix-to-product mapping not independently confirmed)

Verified sample prefixes (all MA-L, exact org "NEC Corporation")

00:00:4C, 00:16:97, 00:25:5C, 00:30:13, 58:C2:32, 74:3A:65, 8C:DF:9D, D4:92:34, F8:CA:85 [Confirmed] — the IEEE MA-L registry

Security context

active CVE footprint 2024–2025: CVE-2025-8153 (Medium, UNIVERGE IX), CVE-2024-6466 (Medium, WebSAM Deployment Manager), CVE-2025-0356 (High, WX1500HP), CVE-2025-0355 (High, WG2600HS), and multiple Critical (CVSS 9.8) findings in the WG1800HP4 Aterm line

[Confirmed] — https://www.cvedetails.com/vulnerability-list/vendor_id-40/NEC.html

Allocated date

Unknown — IEEE publishes no OUI registration dates; third-party per-prefix "date registered" values are database artifacts, not attributed here [Unknown] — the IEEE MA-L registry

Analyst note

this entry consolidates only the exact-org-string "NEC Corporation" block set. Other NEC-family org strings — NEC Platforms Ltd. (own DONE entry), NEC Personal Computers, NEC Personal Products, NEC CASIO Mobile Communications, NEC TOKIN, NECSY, NECTEC, NEC DO BRASIL, NEC AMERICA, NEC Australia, NEC Magnus Communications, NEC UNIFIED SOLUTIONS NEDERLAND, and NEC Asia Pacific — are separate registrants with their own prefixes and are out of scope here

[Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry