Siemens Numerical Control Ltd., Nanjing — 2 prefixes (MA-L)

Siemens Numerical Control Ltd., Nanjing (SNC) is a wholly Siemens-owned manufacturing subsidiary established in 1996 that produces SINUMERIK-family CNC systems, general-purpose frequency converters/drives, and servo and gear motors for automotive, aviation, electronics, pharmaceutical, logistics, and new-energy customers. The IEEE Registration Authority shows two independent MA-L assignments to this exact organization name — 00:1C:06 and E8:EF:22 — registered at two different Nanjing addresses rather than one prefix reused twice, which is itself evidence this is an operating manufacturer rather than a shell registrant. The newer E8:EF:22 address (18 Runhuai Road, Lishui Zone) matches the site of Siemens' first "native digital factory" worldwide, opened in 2019. A 2019 FCC equipment-authorization filing under the same applicant name provides independent regulatory corroboration of active hardware production, though the specific device behind that filing is undisclosed. As with all OUI/MA-L data, IEEE publishes no assignment date for either prefix; a "09 April 2007" date shown by third-party MAC-lookup aggregators for 00:1C:06 is a database-crawl artifact, not an IEEE fact, and is deliberately not recorded here.

IEEE assignments

00:1C:06 and E8:EF:22 → "Siemens Numerical Control Ltd., Nanjing" (two separate MA-L blocks under the identical org name) [Confirmed] — https://services13.ieee.org/RST/standards-ra-web/rest/assignments/?registry=MA-L&text=Siemens%20Numerical%20Control

Registered addresses

00:1C:06 → No. 18 Siemens Road, Jiangning Development Zone, Nanjing, JiangSu 211100, CN; E8:EF:22 → 18 Runhuai Road, Lishui Zone, Nanjing 211200, CN — two distinct manufacturing-site addresses under one org name, not a duplicate/typo

[Confirmed] — the IEEE MA-L registry (cached IEEE MA-L file, lines 16240 & 20575); IEEE RA lookup above

Company profile

wholly Siemens-owned subsidiary, established 1996; manufactures SINUMERIK CNC systems, frequency converters/drives, servo and gear motors for high-end manufacturing sectors [Confirmed] — https://www.investnj.org.cn/our-clients/client-profiles/siemens-numerical-control-nanjing-co-ltd-%EF%BF%BC/

Facility note

the Lishui site (matches the E8:EF:22 address) is Siemens' first "native digital factory" worldwide, opened 2019 (~176 acres / 72,000 sqm / 1,200+ employees) [Confirmed] — https://www.siemens.com/global/en/company/stories/industry/2022/electronics-motors-digital-enterprise-digital-twin-siemens-numerical-control-nanjing-china.html

Device types

SINUMERIK-family CNC controllers, industrial drives/frequency converters, servo drives — inferred from the plant's stated product line; no device-fingerprint source ties a specific model to either prefix

[Likely] — investnj.org.cn (above), https://en.tigerandtech.com/enterprise-resources/siemens-numerical-control-nanjing-co-ltd/

Regulatory corroboration

FCC equipment authorization filing (FCC ID 2ASIE-A5E40992378, "NEW DEVICE", filed 2019) under the same applicant name; specific device type not disclosed on the source page [Confirmed filing exists; device type Unknown] — https://fcc.report/company/Siemens-Numerical-Control-L-T-D-Nanjing

Registration date

IEEE MA-L publishes no assignment/registration date for either prefix (the IEEE MA-L registry has no date column). Third-party aggregators (maclookup.app, uic.io) show "09 April 2007" for 00:1C:06 — a database-crawl artifact of the aggregator, not an IEEE fact; correctly left unrecorded [Confirmed — Unknown by design, not fabricated] — https://maclookup.app/vendors/siemens-numerical-control-ltd-nanjing (caveat source only, not used as a date)

Security/CVE context

no dedicated advisories or CVEs found naming these specific OUIs/MACs; general Siemens SINUMERIK/ICS advisories may apply but were not independently verified against this entity [Unknown]

the IEEE MA-M registry / the IEEE MA-S registry

no MA-M or OUI-36 matches found for this organization name in either cached registry [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry (searched, no hits)

Related vendors

Siemens AG (parent), Siemens Industrial Automation, Siemens Rail Automation — already-enriched sibling entries [Confirmed] — /mac/vendor/siemens-ag/, /mac/vendor/siemens-industrial-automation/, /mac/vendor/siemens-rail-automation/