Zhong Ge Smart Technology Co., Ltd. — 3 prefixes (MA-L)

Zhong Ge Smart Technology Co., Ltd. (also romanized as "Zhongge Smart Technology (Shanghai) Co., Ltd") is a Shanghai-based maker of cellular communication modules and IoT terminals, and the Shanghai R&D arm of MeiG Smart Technology Co., Ltd. — a Shenzhen-listed module vendor (002881.SZ; also 3268.HK). It holds three MA-L OUI blocks: 5C:F5:3A, B4:62:2E, and C4:6E:33. These are 24-bit prefixes, each covering ~16.7 million addresses (~50 million combined). The registry addresses point to 5th Floor, Building G, West Link, No. 2337 Gudai Road, Minhang District, Shanghai (postal codes 201100 / 201199), China. Devices behind these prefixes are predominantly module-level components — 4G/5G smart modules, AI compute and automotive modules, GNSS and LPWA modules, and end-user terminals such as DTUs, mobile POS units, vehicle smart-driving mirrors, charging posts, and logistics handhelds — embedded inside third-party hardware rather than sold as consumer-branded end devices. A relevant caveat for OUI work: IEEE publishes no registration dates for MAC/OUI prefixes, so any "date registered" shown on third-party MAC-lookup tools (e.g. 2021-06-11 for C4:6E:33, 2023-12-05 for B4:62:2E) is a database artifact derived from registry-export timing, not a first-party IEEE fact, and must not be presented as an allocated date. Note also that parent MeiG Smart appears in U.S. national-security discussion of Chinese cellular-module market concentration, though it is not on the FCC Covered List as of this writing.

IEEE assignment

3 MA-L prefixes → Zhong Ge Smart Technology Co., Ltd., registered Shanghai, CN [Confirmed] — the IEEE MA-L registry (rows 7625, 22483, 22484)

Registry / block size

MA-L (24-bit OUI); 3 prefixes (~50.3M addresses) [Confirmed] — the IEEE MA-L registry; corroborated by maclookup.app / hwaddress.com. No MA-M or MA-S assignments found.

Verified prefixes (all MA-L)

5C:F5:3A, B4:62:2E, C4:6E:33 [Confirmed] — the IEEE MA-L registry. NOTE: 5C:F5:3A registered to "Zhongge Smart Technology(Shanghai) Co., Ltd"; B4:62:2E and C4:6E:33 to "Zhong Ge Smart Technology Co., Ltd." — same entity, two romanizations.

HQ / country

5th Floor, Building G, West Link, No. 2337 Gudai Road, Minhang District, Shanghai 201100/201199, CN (registry address) [Confirmed] — the IEEE MA-L registry; hwaddress.com

No IEEE date

IEEE public OUI data (the IEEE MA-L registry: Registry, Assignment, Organization Name, Organization Address) contains NO assignment/registration date. Third-party "date registered" figures (C4:6E:33 → 2021-06-11; B4:62:2E → 2023-12-05 on maclookup.app) are database artifacts, not IEEE facts.

[Confirmed] — https://maclookup.app/vendors/zhong-ge-smart-technology-co-ltd

Company status

active [Likely] — https://en.zgims.com/ (vendor site operational)

Device types

4G/5G cellular modules, AI/automotive/GNSS/LPWA modules, IoT terminals (DTUs, mobile POS, vehicle smart-driving mirrors, charging posts, logistics handhelds) — module-level components embedded in third-party hardware

[Confirmed] — https://en.meigsmart.com/page/aboutone.html, https://www.4gltemall.com/m2m-lte-module/meig-smart.html

Parent company

wholly-owned subsidiary of MeiG Smart Technology Co., Ltd. (002881.SZ / 3268.HK), founded April 2007, headquartered Shenzhen, Guangdong, CN [Confirmed] — https://en.meigsmart.com/page/aboutone.html, https://en.zgims.com/profile.html

Industry

cellular/IoT communication modules (M2M) [Confirmed] — https://en.meigsmart.com/page/aboutone.html

Website

https://en.zgims.com/ (Zhong Ge Smart); parent https://en.meigsmart.com/ [Confirmed] — vendor sites

Security context

parent MeiG Smart named in U.S. national-security discussion of Chinese cellular-module market concentration (MeiG/Quectel/Fibocom/Sunsea/Neoway control >70% of the global module market); has FCC equipment authorizations on file but is NOT on the FCC Covered List and not subject to a specific NDAA ban as of the research date. No CVEs specific to this vendor found. [Likely] — https://fcc.report/company/Meig-Smart-Technology-Co-L-T-D, https://www.tomshardware.com/tech-industry/trump-administration-reportedly-debating-ban-on-chinese-cellular-modules-in-expansion-of-fcc-crackdown-potential-restrictions-could-impact-everything-from-smart-devices-and-routers-to-connected-cars-and-industrial-iot-systems

Allocated date

Unknown — IEEE publishes no registration dates for MAC/OUI prefixes; no first-party date available [Unknown]

Analyst note

a globally-administered Zhong Ge Smart OUI identifies a MeiG-family cellular/IoT module, which typically sits embedded inside a router, vehicle, industrial gateway, or handheld — the visible device brand is usually the integrator's, not Zhong Ge's. Treat the third-party "registration dates" as artifacts, not facts.