The OUI F4:63:E7 is an IEEE MA-L block registered to "Nanjing Maxon O.E. Tech. Co., LTD," a Chinese industrial wireless hardware manufacturer based at Zidong International Creative Park in the Qixia District of Nanjing, Jiangsu. The company (self-described as founded in 2012, trading internationally as MAXON COMMUNICATION LIMITED through a Hong Kong entity) designs and builds ruggedized networking gear for operational-technology environments rather than consumer or general-enterprise use: industrial Wi-Fi access points (Wi-Fi 5/6/6E), wireless modules and embedded motherboards, long-range point-to-point bridges, industrial Ethernet switches, serial device servers, and explosion-proof APs, bridges, routers, and DTUs rated for hazardous locations. Its stated deployment verticals — petrochemical, coal mining, pipeline and water, rail transit, ports, energy, and emergency communications — are squarely ICS/OT. The practical signal for network analysts is strong: a globally-administered MAC in F4:63:E7 most likely belongs to an industrial wireless device on an OT or process-control network, not a phone or laptop. No CVEs, CISA KEV entries, or public security advisories were found for the vendor's products as of June 2026; the absence of disclosed research is not assurance, and standard ICS segmentation and firmware hygiene apply. Per IEEE policy, no registration date is published for this OUI; the 2012 figure is a company founding date, not an IEEE assignment date.
- IEEE assignment
- F4:63:E7 → Nanjing Maxon O.E. Tech. Co., LTD [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv exact-match row)
- Registry / block size
- MA-L (24-bit OUI) [Confirmed] — IEEE MA-L registry. 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 is a database artifact, not an IEEE fact.
- Registry address / country
- 6/F, Building A3, Zidong International Creative Park, Zidong Road, Qixia District, Nanjing, Jiangsu, CN 210000 [Confirmed] — IEEE MA-L registry
- Company status
- active [Confirmed] — mxcomm.cn company profile
- Founded
- 2012 (company self-description; this is a corporate founding date, NOT an IEEE OUI registration date) [Confirmed] — mxcomm.cn, maxon2018.en.made-in-china.com
- Vendor website
- https://www.mxcomm.cn/ [Confirmed] — mxcomm.cn
- Name variants
- Nanjing Maxon O.E. Tech. Co., Ltd.; MAXON COMMUNICATION LIMITED (Hong Kong trading branch) [Confirmed] — mxcomm.cn company profile
- Device types
- industrial Wi-Fi access points (Wi-Fi 5/6/6E), wireless modules, point-to-point Wi-Fi bridges (20km+ range), Wi-Fi embedded motherboards, explosion-proof APs/bridges/routers/DTUs (hazardous-location rated), industrial Ethernet switches, serial device servers, positioning systems, image-transmission base stations [Confirmed] — mxcomm.cn products, made-in-china profile
- Industry verticals
- petrochemical, coal mining, pipeline/water, rail transit, ports/terminals, digital manufacturing, energy/power, smart cities, emergency communications, warehousing/logistics, drone communication, airport infrastructure [Confirmed] — mxcomm.cn company profile
- Certifications
- FCC, CE, ISO 9000, ISO 14001 [Confirmed] — mxcomm.cn, made-in-china profile
- Security context
- No CVEs, CISA KEV entries, or public security advisories found as of June 2026; products deployed in OT/ICS environments where standard network segmentation and firmware hygiene apply [Likely — based on absence of findings across web search, single supporting vendor source] — mxcomm.cn/news/3934.html
- Analyst note
- A globally-administered MAC in F4:63:E7 most likely identifies an industrial/explosion-proof wireless device on an OT network rather than consumer or enterprise IT gear; OUI alone does not confirm a specific model.