OUI prefix 80:38:D4 is registered to Fibercentury Network Technology Co.,Ltd. (全光世纪网络科技有限责任公司), an IoT hardware company based in the Tianfu New Area of Chengdu, Sichuan, China. The IEEE assignment is a single MA-L block — a 24-bit OUI covering roughly 16.7 million addresses — with no companion MA-M or MA-S entries on record. Despite the "Network Technology" in the legal name, the vendor does not appear to ship general-purpose networking gear: their published product line is edge IoT gateways and sensor terminals aimed at smart agriculture and aquaculture, including water-control and power-control gateways, power and water-level/flow monitoring units, and environmental data-collection terminals for dissolved oxygen, pH, and turbidity. For asset-classification work this matters: a 80:38:D4 address most likely belongs to a deployed agricultural or aquaculture IoT controller — a device that frequently has remote monitoring and actuation reach into pumps, power, and water systems — rather than a switch, router, or consumer endpoint. No IEEE registration date exists for this block; IEEE publishes none for OUI/MA-L assignments, and the 2022-08-18 date seen on third-party lookup sites is a database artifact, not a first-party fact. No public CVEs or security advisories were found for the vendor, consistent with a small, early-stage vendor (company established circa 2021, Sichuan ICP filing in 2023) with low Western security-research visibility.
- IEEE assignment
- 80:38:D4 → Fibercentury Network Technology Co.,Ltd., Chengdu, Sichuan, CN [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv line 430), maclookup.app/macaddress/8038D4
- Registry / block size
- MA-L (24-bit OUI; ~16.7M addresses); single block, no MA-M (mam.csv) or MA-S (oui36.csv) entry found [Confirmed] — IEEE OUI registry, maclookup.app/macaddress/8038D4
- Registered org (Chinese)
- 全光世纪网络科技有限责任公司 [Confirmed] — fibercentury.com
- HQ / country
- No. 1515 and No. 1516, Floor 15, Unit 2, Building 2, Section 1, Huayang Huafu Avenue, Tianfu New Area, Chengdu, Sichuan, CN 610000 (registry address) [Confirmed] — IEEE MA-L, maclookup.app/macaddress/8038D4
- No IEEE date
- IEEE publishes NO assignment/registration date for OUI/MA-L blocks. The 2022-08-18 date on maclookup.app is a third-party database artifact, not an IEEE fact, and must not be recorded as a registration date. [Confirmed] — maclookup.app/macaddress/8038D4
- Company status / age
- established ~2021 per vendor site; Sichuan ICP filing 蜀ICP备2023018768号 dated 2023 — single-source, no independent corroboration [Likely] — fibercentury.com
- Device types
- agricultural / aquaculture IoT edge gateways and sensor terminals — smart water-control gateway, smart power-control gateway, power-monitoring gateway, water level/flow monitoring gateway, environmental data-collection terminals (dissolved oxygen, pH, turbidity). Not switches, routers, or consumer networking gear. [Confirmed] — fibercentury.com
- Website
- https://www.fibercentury.com [Confirmed] — fibercentury.com
- Security context
- no public CVEs, advisories, or certifications found. Devices are remote-monitoring/control IoT gateways for agricultural water/power systems, implying a relevant deployment-context attack surface (remote actuation of pumps/power/water). Low public research surface for a small niche vendor. [Unknown] — no source (abstention)
- Analyst note
- niche Chinese IoT vendor targeting agriculture/aquaculture verticals, not enterprise/consumer networking; a 80:38:D4 hit most likely identifies a field IoT controller, not standard network infrastructure. [Likely] — fibercentury.com, maclookup.app/macaddress/8038D4