Tozed Kangwei Tech — 5 prefixes (MA-L)

A MAC address starting FC:3F:FC, 98:A9:42, D8:42:F7, or 0C:61:F9 belongs to Tozed Kangwei Tech Co., Ltd, a Guangzhou-based telecom equipment manufacturer, typically seen on 4G/5G CPE routers, mobile Wi-Fi hotspots, and industrial wireless gateways. A fifth related prefix, D8:D8:66, is registered separately to Shenzhen Tozed Technologies Co., Ltd, an affiliated group entity in Futian, Shenzhen.

The Guangzhou company — full name Guangzhou Tozed Kangwei Intelligent Technology Co., Ltd — was founded 26 March 2019 in the Nansha Free Trade Zone and has grown to 500+ employees. It holds China's "National High-Tech Enterprise" designation (2021) and "Little Giant" specialized-enterprise status (2022), indicators of a real, operating manufacturer rather than a shell registrant.

Product evidence backs this up: FCC ID 2A5LO-TOZED5GCPEX21, granted 6 April 2022, documents an actual shipped "5G Wireless Router with WiFi, LTE and 5G NR." The broader TOZED product line spans 5G/4G CPE, MiFi hotspots, industrial routers, Wi-Fi routers, GPON ONTs, and fixed wireless phones.

Security researchers have documented flaws in specific TOZED-branded router models — the ZLT W51 (unauthenticated cross-connection memory disclosure and a proprietary TCP/7777 DoS) and the ZLT M30S/M30S PRO (hard-coded web-interface credentials, plus a reboot-endpoint DoS). These findings attach to named product models, not to the OUI blocks directly, so they are noted here for context rather than treated as confirmed per-prefix risk.

As with all OUI data, no registration date is published by IEEE for any of these five prefixes; a third-party aggregator's "18 October 2024" timestamp for FC:3F:FC is a database artifact, not an IEEE fact, and should not be repeated as such.

IEEE assignment

5 prefixes → Tozed Kangwei Tech Co.,Ltd (4) and SHENZHEN TOZED TECHNOLOGIES CO.,LTD. (1), registered Guangzhou/Shenzhen, Guangdong, CN [Confirmed] — the IEEE MA-L registry (IEEE MA-L source)

Registry / block size

MA-L (24-bit OUI) x5; no MA-M or MA-S assignments found for this vendor [Confirmed] — grep of the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

Room 1301, No. 37 Jinlong, Nansha Street, Xiangjiang Financial Business Center, Nansha District, Guangzhou, Guangdong, CN 511466/511458 (4 blocks); 4F/A1,A2 Tianji Building, Tian'an Cyber Park, Futian, Shenzhen, Guangdong, CN 518040 (D8:D8:66) [Confirmed] — the IEEE MA-L registry

Company status

active; founded 26 Mar 2019 in Nansha Free Trade Zone Guangzhou, 500+ employees, National High-Tech Enterprise (2021), "Little Giant" Enterprise (2022) [Confirmed] — https://global.gztozed.com/about.html

Device types

5G/4G CPE, MiFi/mobile hotspots, industrial routers, Wi-Fi routers, GPON ONTs, fixed wireless phones [Confirmed] — global.gztozed.com, GSMA member listing

Notable products

"5G Wireless Router with WiFi, LTE and 5G NR" (FCC ID 2A5LO-TOZED5GCPEX21, granted 6 Apr 2022); TOZED-branded ZLT W51, ZLT M30S / M30S PRO router models [Confirmed] — https://fccid.io/2A5LO-TOZED5GCPEX21

Verified sample prefixes (MA-L)

FC:3F:FC, 98:A9:42, D8:42:F7, 0C:61:F9 (Tozed Kangwei Tech Co.,Ltd); D8:D8:66 (SHENZHEN TOZED TECHNOLOGIES CO.,LTD.) [Confirmed] — the IEEE MA-L registry

Registration date

not published by IEEE for any of these prefixes; a third-party aggregator (maclookup.app) shows an "18 October 2024" timestamp for FC:3F:FC that is a database/scrape artifact, not an IEEE-issued date [Confirmed — non-attribution] — https://maclookup.app/search/result?mac=FC-3F-FC

Security note

published vulnerabilities for TOZED-branded router models — ZLT W51 (unauthenticated memory disclosure, proprietary TCP/7777 DoS) and ZLT M30S/M30S PRO firmware 1.47/3.09.06 (hard-coded web credentials; DoS via goformId=REBOOT_DEVICE) — attach to product models, not independently verified against these specific OUI blocks

[Likely] — https://github.com/Zephkek/LeakyTozed, https://db.gcve.eu/search?vendor=TOZED

Related vendors

SHENZHEN TOZED TECHNOLOGIES CO.,LTD. (affiliated group entity, holds D8:D8:66) [Confirmed] — the IEEE MA-L registry

Analyst note

identifiable, substantive manufacturer with multiple OUI assignments and confirmed shipped hardware (FCC filing) — not a thin/bare single-OUI registration; treat MAC-based identification as reliable for genuine TOZED-branded gear, but do not extend cited router-model CVEs to every device on these prefixes without further verification.