Qing Dao Haier Telecom Co., Ltd. — 4 known MA-L prefixes (all IEEE-confirmed)

A MAC address starting C8:D7:79 belongs to Qing Dao Haier Telecom Co., Ltd. (also rendered Haier Telecom (Qingdao) Co., Ltd.), a Shandong-based telecom-equipment subsidiary of the Haier Group. The registration is typically associated with mobile/smartphone handsets, USB data cards, EVDO modems, and PDAs rather than Haier's better-known home-appliance line.

IEEE's MA-L registry records four blocks to QING DAO HAIER TELECOM CO.,LTD. at Hi-tech Zone, Qingdao, Shandong, China: C8:D7:79, B0:A3:7E, BC:8A:E8, and DC:33:0D. All four are independently confirmed against the cached IEEE registry data for this entry, not merely a third-party aggregation.

Corporate substance beyond the bare registration comes from FCC filings: grantee code SG7, registered to Haier Telecom (Qingdao) Co., Ltd., covers 118 equipment authorizations from 2004 to 2018 for mobile phones, USB modems, and PDAs. That volume and device mix, plus an identifiable corporate lineage as a Haier Group telecom subsidiary reportedly established around 1999, supports treating this as a genuine multi-block manufacturer rather than a single-OUI shell.

This entry is distinct from vendor-qingdao-haier-technology, a separately-slugged smart-appliance OUI family already finalized in the masters — the two should never be conflated. No CVEs, abuse reports, or security advisories specific to this OUI or Haier Telecom-branded devices were found in this pass; that should be recorded as Unknown, not as a clean bill of health.

IEEE assignment

C8D779 → QING DAO HAIER TELECOM CO.,LTD., registered No 1 Haier Road, Hi-tech Zone, Qingdao, Shandong 266101, CN [Confirmed] — IEEE OUI Registry (cached: the IEEE MA-L registry line 10002), https://standards-oui.ieee.org/oui/oui.csv. NOTE: IEEE's public OUI data publishes NO registration date; the "17 Nov 2015 / updated 28 Jan 2018" date shown by maclookup.app for this prefix is a third-party database-scrape artifact, not an IEEE fact.

Registry / block size

MA-L (24-bit OUI); 4 known MA-L blocks (B0:A3:7E, BC:8A:E8, C8:D7:79, DC:33:0D) under this registrant name/address, all four independently confirmed against cached IEEE registry data [Confirmed] — IEEE OUI Registry (cached: the IEEE MA-L registry lines 10002, 25801, 33763, 34043), https://standards-oui.ieee.org/oui/oui.csv

HQ / country

No 1 Haier Road, Hi-tech Zone, Qingdao, Shandong 266101, CN [Confirmed] — IEEE MA-L; https://hwaddress.com/company/qing-dao-haier-telecom-coltd/

Company status

Telecom-equipment subsidiary of the Haier Group; FCC equipment filings under grantee code SG7 run 2004–2018, current operating status not independently confirmed [Likely] — https://fccid.io/SG7

Device types

Mobile/smartphones (GSM/WCDMA/CDMA/LTE), USB data cards/EVDO modems, PDAs [Likely] — https://fccid.io/SG7

Notable products

No specific model names verified in this pass [Unknown]

Verified sample prefixes

C8:D7:79, B0:A3:7E, BC:8A:E8, DC:33:0D [Confirmed] — IEEE OUI Registry (cached: the IEEE MA-L registry lines 10002, 25801, 33763, 34043)

Special note

Distinct from vendor-qingdao-haier-technology, a separately-slugged smart-appliance OUI family already finalized in the masters — do not conflate the two Haier-affiliated vendor entries [Confirmed] — repo master CSV check (grep, no matching row for this slug)

Related vendors

Haier Mobile Communication Limited (related IDH subsidiary, reportedly founded 2007) [Likely] — https://haierhea.en.made-in-china.com/, https://sourcing.hktdc.com/en/Supplier-Store/Home/Qingdao-Haier-Telecom-Co-Ltd/1X06IR4N

Security posture

No CVEs, vulnerability advisories, or abuse/botnet reporting specific to this OUI or Haier Telecom-branded devices found in this pass [Unknown] — absence of finding, not a confirmed clean record

Analyst note

Corporate substance (FCC filing volume, device-type consistency, 4-block pattern) supports treating this as a genuine manufacturer rather than a single-OUI shell; all four prefixes are independently IEEE-verified against the cached registry. [Confirmed]