Chengdu Jiarui Hualian Communication Technology Co holds a single IEEE MA-L block, E8:CC:8C, registered to a Jinjiang District address in Chengdu, Sichuan Province, China. The company name (likely 成都嘉瑞华联通信技术有限公司 in Chinese) marks it as a communication-technology firm, but it is a low-visibility entity: exhaustive English- and Chinese-language searches across MAC lookup databases (maclookup.app, macaddress.io, macvendorlookup.com) and Chinese business registries (qcc.com, tianyancha.com, aiqicha.com) returned no vendor website, no product catalog, no datasheets, and no device sightings. A single MA-L block covers roughly 16.8 million addresses, so the lone registration says nothing about shipment volume. No device type can be confirmed beyond the "Communication Technology" label in the name. Two similarly-named entities — "Hualian XingTong Technology" (millimeter-wave chips) and "Hualian Industrial" (Shenzhen) — are distinct companies and do not corroborate this vendor. No CVEs, threat-intelligence reports, or security advisories reference this OUI or this firm in open sources. The April-2022 dates seen on third-party lookup sites are database-scrape artifacts, not IEEE-published facts: IEEE publishes no assignment/registration date for OUI/MAC prefixes.
- IEEE assignment
- 1 prefix → Chengdu Jiarui Hualian Communication Technology Co, MA-L [Confirmed] — enrichment/registries/oui.csv line 561; maclookup.app
- OUI prefix
- E8:CC:8C [Confirmed] — oui.csv line 561; https://maclookup.app/vendors/chengdu-jiarui-hualian-communication-technology-co
- Registry / block size
- MA-L (24-bit OUI block, ~16.8M addresses); 1 IEEE prefix [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). The "2022-04-23 / 2022-04-30" dates on maclookup.app are third-party database artifacts, not IEEE facts.
- Registered address
- 5th Floor, Building F, Huirong Plaza (Jinhua), No. 88, Section 3, Jinhua Road, Industrial Park, Jinjiang District, Chengdu, Sichuan Province, CN 610000 [Confirmed] — oui.csv line 561 (IEEE registry address)
- HQ / country
- Chengdu, Sichuan, CN [Confirmed] — IEEE registry address (oui.csv line 561)
- Company status
- Unknown — no Chinese business registry entry (qcc.com / tianyancha.com / aiqicha.com) returned for this entity [Unknown] — abstained after exhaustive search
- Device types
- Unknown — name implies communication/networking equipment ("Communication Technology" / 通信技术) but no product listings, datasheets, or device sightings located [Unknown] — abstained after web search
- Vendor website
- Unknown — none found via web search or Chinese business registry search [Unknown]
- Related vendors
- No corroborated relationship. "Hualian XingTong Technology" (Chengdu/Xi'an, millimeter-wave chips) and "Hualian Industrial" (Shenzhen) are distinct entities; "Sichuan Jiarui Technology Co., Ltd." returned 403 and could not be confirmed related [Likely distinct] — https://www.hualianxingtong.com/
- Security context
- Unknown — no CVEs, threat-intel reports, advisories, or forum discussions referencing this OUI or vendor found in open sources [Unknown]
- Analyst note
- A single MA-L block identifies genuine hardware from this vendor when the address is globally administered, but the firm is otherwise undocumented in open sources; treat device-type/business attributions as unconfirmed.