Shenzhen RF Technology Co., Ltd. (RFTECH) — 2 prefixes (MA-L)

Shenzhen RF Technology Co., Ltd. holds two IEEE MA-L blocks, 08:D8:33 and 8C:18:D9, both registered to the identical organization string but recorded with slightly different addresses and postal codes — a common artifact of separate registry submissions rather than evidence of two distinct companies. Third-party B2B listings identify the firm as one of three sister companies under a "RF Group" umbrella alongside RF-LC (SMT/assembly) and RF-Link (RF/WiFi modules) — the last of which already has its own consolidated entry on this site and should not be merged with this one. RFTECH's product lines, per those listings, center on tablet PCs (5"-10.1"), TFT e-book readers, Bluetooth headphones and TWS earbuds, and WiFi/BT/2.4GHz RF modules. Real-world device context beyond the catalog listings is limited but not absent: an independent open-source firmware project (tuya-convert) logged a WiFi smart plug whose MAC resolved to this vendor while debating its chipset identity, which corroborates the modules/IoT product line from a non-marketing source. The company's own corporate site was unreachable during this verification pass, so "active" status rests on secondary listings rather than a confirmed first-party source, and the primary IEEE OUI text file could not be independently re-fetched this cycle (cached registry CSVs were used instead).

IEEE assignment

two MA-L blocks, 08:D8:33 and 8C:18:D9, both → "Shenzhen RF Technology Co., Ltd." [Confirmed] — the IEEE MA-L registry#L26346, #L27148; the Wireshark manufacturer database#L18483, #L39992

Registry / block size

MA-L (24-bit OUI) x2; no MA-M or MA-S blocks found for this org [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry (checked, no match)

Registered address

08:D8:33 → "5/F, Building 4, Baokun Science and Technology Industrial Park, Dalang Street, Baoan District, Shenzhen, Guangdong, CN 518109"; 8C:18:D9 → "5/F, Building 4, Baokun Science and Technology Industial [sic] Park, Baoan, Guangdong, CN 518100". Text and postal code differ between the two registry rows; almost certainly the same physical site recorded twice with drift, but not identical strings so not merged into one value. [Confirmed as registry text; Likely as same site] — the IEEE MA-L registry#L26346, #L27148

Cross-corroboration

both blocks independently confirmed by three third-party aggregators with matching name+address [Confirmed] — maclookup.app/macaddress/08D833, maclookup.app/macaddress/8C18D9, uic.io, udger.com

Company status

reported active via a third-party B2B listing; the vendor's own site (rftech.com.cn) was unreachable (connection refused) during this pass, so this is not a first-party confirmation [Likely] — made-in-china.com/showroom/rftechtablet/

Corporate structure

one of three "RF Group" sister companies (RF-LC, RF-Link, RF Technology); distinct from already-covered vendor-shenzhen-rf-link-technology, not a duplicate [Likely] — made-in-china.com/showroom/rftechtablet/

Device types / products

tablet PCs (5"-10.1", resistive/capacitive touch), TFT e-book readers, Bluetooth headphones/TWS earbuds, WiFi/BT and 2.4GHz RF modules [Likely] — made-in-china.com/showroom/rftechtablet/

Field device sighting

a WiFi smart plug's MAC resolved to this vendor, discussed in a Tuya-firmware compatibility GitHub issue debating ESP-based vs. proprietary RF chipset — a compatibility question, not a disclosed vulnerability [Likely] — github.com/ct-Open-Source/tuya-convert/issues/985

Security context

no CVEs or vendor-specific disclosed vulnerabilities found during this pass [Confirmed] — search coverage in this cycle's web-research angle

IEEE primary-source check

direct fetch of standards-oui.ieee.org/oui/oui.txt was blocked (HTTP 418) this pass; findings rest on cached registry CSVs plus third-party aggregator cross-corroboration, not a fresh IEEE fetch [Confirmed — stated as a limitation, not a gap in the CSV data itself]

Dates

Unknown / not applicable — IEEE publishes no assignment or registration date for MA-L records (the IEEE MA-L registry columns are Registry, Assignment, Organization Name, Organization Address only). Third-party "date registered" values seen on aggregator pages (varying between sites for the same OUI) are database artifacts, not IEEE facts, and are intentionally not recorded here. [Confirmed]

IANA reference

not applicable to OUI/MAC vendor records [Confirmed]