Shenzhen TecAnswer Technology co.,ltd holds a single IEEE MA-L block, EC:41:CA, covering the range EC:41:CA:00:00:00 through EC:41:CA:FF:FF:FF (16,777,216 universally-administered unicast addresses). The block is registered to a Nanshan District address in Shenzhen's Gaoxin (high-tech) zone, an area dense with consumer-electronics, networking, and embedded-device ODMs — but that geography is the only signal available about what the company actually makes. Beyond the registry record itself, TecAnswer has essentially no public footprint: no vendor website, no Alibaba or trade-portal storefront, no product catalog or datasheets, and no LinkedIn presence surfaced across multiple search angles. Device type is therefore Unknown, and so is the company's security posture — no CVEs, advisories, or threat-intelligence reports mention either the vendor or the OUI, but for an obscure ODM the absence of public findings is not a clean bill of health. One data-quality caveat applies here as with every OUI entry: third-party MAC databases show a "first seen 2023-01-09" timestamp for this block. That is a database artifact reflecting when the record appeared in that service's data, not an IEEE registration date — IEEE publishes no assignment dates in its public OUI file, so no registration date is asserted here.
- IEEE assignment
- EC:41:CA → Shenzhen TecAnswer Technology co.,ltd [Confirmed] — IEEE MA-L (oui.csv), corroborated by maclookup.app and macvendorlookup.com
- Registry / block size
- MA-L (24-bit OUI); block range EC:41:CA:00:00:00–EC:41:CA:FF:FF:FF (16,777,216 addresses), universally administered, unicast [Confirmed] — IEEE MA-L; maclookup.app. NOTE: IEEE's public OUI data publishes NO assignment/registration date (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" or "first seen" on third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- 1004 yuemeite Building, No.1 gaoxin South 7th Road, Gaoxin District, Yuehai Street, Nanshan District, Shenzhen, Guangdong 518063, CN [Confirmed] — IEEE MA-L registry address; corroborated by macvendorlookup.com
- Company status
- Unknown — no company website, registry-of-companies record, or trade-portal listing found to confirm active/inactive status [Unknown] — no source
- Device types
- Unknown — no product catalog, datasheet, or device-type declaration found. Nanshan-district registration is consistent with consumer/IoT electronics, networking gear, or embedded-device ODM work common in that area, but no specific category is corroborated [Unknown] — maclookup.app (no type signal in the Wireshark identifier string "TecAnswerTec")
- Notable products
- Unknown — none found
- Block scope
- single MA-L prefix; not present in MA-M (mam.csv) or MA-S (oui36.csv) [Confirmed] — IEEE registries (local cache)
- Vendor website
- Unknown — no vendor site, Alibaba storefront, trade-portal listing, or LinkedIn presence surfaced in search [Unknown] — no source
- Security note
- No CVEs, advisories, threat-intelligence reports, or public network-scan discussions mention TecAnswer or OUI EC:41:CA. Posture is Unknown — absence of public findings is not a clean bill of health for an obscure ODM. [Unknown] — no source
- Data-quality caveat
- maclookup.app shows "first seen 2023-01-09"; this is a third-party database-artifact timestamp, NOT an IEEE registration date. [Confirmed as artifact] — maclookup.app
- Analyst note
- An EC:41:CA globally-administered address reliably identifies hardware that draws from this allocation, but with no public product information the actual device behind it cannot be inferred from the OUI alone. Treat device-type and vendor-identity assumptions with caution.