Mercusys holds about 6 MA-L blocks registered as "MERCUSYS TECHNOLOGIES CO., LTD." in Nanshan, Shenzhen — the full set being 00:EB:D8, 08:8A:F1, 0C:1C:31, 30:16:9D, 94:74:2E, and FC:CA:10. The key structural finding: Mercusys IS a distinct IEEE registrant, separate from TP-Link's own registrants ("TP-LINK TECHNOLOGIES CO.,LTD" ~174 blocks and "TP-Link Systems Inc" ~87 blocks), even though Mercusys is widely understood to be a TP-Link sub-brand. The recommendation is therefore to give Mercusys its own page (distinct registrant + distinct prefixes) while cross-linking TP-Link as parent/sibling. These OUIs appear on ultra-budget consumer routers, Wi-Fi range extenders, and switches. For triage, a Mercusys OUI indicates an ultra-budget home router or extender; in enterprise contexts a strong shadow-IT signal, and its relationship to TP-Link matters for supply-chain assessment.
- IEEE assignment
- ~6 prefixes → MERCUSYS TECHNOLOGIES CO., LTD., registered Shenzhen, China [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 6 blocks [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- 3F Zone B Building R1, High-Tech Industrial Village, No.023 High-Tech South 4 Road, Nanshan, Shenzhen, Guangdong 518057, China [Confirmed] — IEEE MA-L
- Company status
- active; TP-Link sub-brand [Confirmed] — maclookup.app
- Device types
- ultra-budget consumer routers, Wi-Fi range extenders, switches [Confirmed] — maclookup.app
- Notable products
- Mercusys budget routers, range extenders
- Verified prefix set (all 6)
- 00:EB:D8, 08:8A:F1, 0C:1C:31, 30:16:9D, 94:74:2E, FC:CA:10 [Confirmed] — maclookup.app
- Special note
- Mercusys IS a distinct IEEE registrant, separate from TP-Link's registrants ("TP-LINK TECHNOLOGIES CO.,LTD" ~174, "TP-Link Systems Inc" ~87) — keep its own page but cross-link TP-Link as parent/sibling. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed] — maclookup.app/vendors/mercusys-technologies-co-ltd
- Related vendors
- parent/affiliated TP-Link
- Analyst note
- A Mercusys OUI indicates an ultra-budget home router/extender; in enterprise contexts a strong shadow-IT signal. Its relationship to TP-Link matters for supply-chain assessment.