China Dragon Technology Limited — 32 prefixes (MA-L); Wi-Fi/BT/IoT modules, OEM/ODM for smart devices

China Dragon Technology Limited (internal shortcode ChinaDragonT in the Wireshark the Wireshark manufacturer database file) is an OEM/ODM electronic component manufacturer founded in 2005 and headquartered at B4 Building, No. 3 First Industrial Zone, Nanpu Road, Lao Community, Xinqian Street, Bao'an District, Shenzhen, Guangdong 518100, China. The company is a high-tech enterprise specialising in radio-frequency communication modules — principally Wi-Fi modules, Bluetooth modules, GPS modules, integrated circuits, and sensors — for integration into other manufacturers' products. They sell under the trade style "Cdtech" and hold certifications including ISO 9001, ISO 14001, IATF16949, and WCA. The company holds 32 MA-L (OUI/24-bit) blocks in the IEEE registry, representing approximately 536.9 million assignable addresses.

China Dragon does not sell end-user consumer devices under its own brand. Its role is as a chipset/module supplier: its Wi-Fi/BT modules appear inside smart-home devices (cameras, smart plugs, sensors), IoT gateways, automotive electronics, and consumer appliances built by other companies. FCC filings confirm a broad portfolio of IEEE 802.11 modules across multiple generations: 2.4 GHz 802.11n, dual-band 802.11ac (2T2R PCIe), 802.11ac+BT5.0 (SDIO), and ESP32-based 802.11n modules, all designated OEM modules requiring integration by a host manufacturer.

Security posture: no CVEs attributable to China Dragon-branded products were found. General IoT supply-chain concerns (firmware update opacity, telemetry to foreign servers) apply to any component from a Chinese ODM, but these are category-level risks, not documented vendor-specific vulnerabilities. Network segmentation is the standard mitigation for unidentified IoT endpoints bearing a China Dragon OUI.

"Date registered" figures cited by third-party MAC-lookup databases (e.g., "first registered 2018-09-09") are database artifacts — the IEEE does not publish assignment dates for MA-L blocks, so no registration date is recorded here.

IEEE assignment

32 prefixes → "China Dragon Technology Limited" / "CHINA DRAGON TECHNOLOGY LIMITED", registered Bao'an District, Shenzhen, China [Confirmed] — IEEE MA-L via the IEEE MA-L registry (local registry mirror)

Registry / block size

MA-L; 32 blocks (~536.9 million addresses) [Confirmed] — maclookup.app

HQ / country

B4 Building, No. 3 First Industrial Zone, Nanpu Road, Xinqian Street, Bao'an District, Shenzhen, Guangdong 518100, China [Confirmed] — IEEE the IEEE MA-L registry; maclookup.app

Company status

active OEM/ODM module manufacturer (founded 2005) [Confirmed] — cdtech.cn (via DNS; TLS expired but content confirmed via search snippets); dnb.com

Device types

Wi-Fi modules (802.11n/ac, 2.4 GHz and dual-band), Bluetooth modules (BT 5.0 combo), GPS modules, IoT connectivity modules; OEM/ODM integration only — not sold as end-user branded devices [Confirmed] — FCC ID database (ROW-C4ESP3200, ROW-CDW47W3155, ROW-CDW61822CE, ROWCDW-E67601U-00, ROW-B18188F2C, ROW-CDWU96600001, ROW-CDW69868500)

FCC grantee code

ROW (FCC grantee for CHINA DRAGON TECHNOLOGY LIMITED) [Confirmed] — fccid.io

Certifications

ISO 9001, ISO 14001, IATF16949, WCA [Likely] — company self-description via search snippet from cdtech.cn; not independently verified from a third-party certificate registry

Verified prefix sample

00:7E:56, 3C:7A:AA, E0:51:D8, 94:E0:D6, A0:9D:C1, 78:8A:86 [Confirmed] — IEEE the IEEE MA-L registry (local mirror); maclookup.app

Special note

Module-OUI flag (32 MA-L blocks). A China Dragon OUI identifies a module manufactured by China Dragon for OEM integration. The device on the network is the OEM host product (smart-home device, IoT sensor, appliance), not a China Dragon branded device. No IEEE assignment dates exist for MA-L blocks; third-party "date registered" database fields are artifacts and are not recorded here. [Confirmed]

Analyst note

A China Dragon OUI in ARP/DHCP indicates a device built around a China Dragon Wi-Fi or BT module. Classify as IoT/smart-device (likely consumer or light industrial). Apply standard IoT isolation (VLAN/SSID segmentation) for unknown endpoints. No CVEs attributable to China Dragon modules as of 2026-06-19.

Website

http://www.cdtech.cn (TLS certificate expired as of 2026-06-19; site accessible but HTTPS handshake fails) [Confirmed] — fccid.io; dnb.com; search snippets