Shanghai Longcheer Technology Co., Ltd. — 2 prefixes (MA-L)

Shanghai Longcheer Technology Co., Ltd. holds two confirmed IEEE MA-L OUI blocks — 54:2F:04 and 30:D9:59 — both registered to the identical address at Building 1, No.401 Caobao Road, Xuhui District, Shanghai 200233, China. The company is a substantial, publicly traded entity: dual-listed on the Shanghai Stock Exchange (603341, listed March 2024) and the Hong Kong Stock Exchange (9611), and per Frost & Sullivan was the world's largest smartphone ODM by 2024 shipment volume, supplying roughly 173 million units (about 32.6% market share) to brands including Xiaomi, Samsung, Lenovo, Honor, OPPO, and vivo. It shares its Caobao Road address and corporate lineage with the already-catalogued "LONGCHEER TELECOMMUNICATION LIMITED" and "Longcheer Technology (Singapore) Pte Ltd" registrant strings (vendor-longcheer), but is a technically distinct IEEE registrant that was not captured in that prior entry — flagged here as a probable correction needed there. As with sibling ODM entries, an OUI in this block identifies the design house, not necessarily the retail brand printed on the device.

IEEE assignment

two MA-L prefixes → "Shanghai Longcheer Technology Co., Ltd." [Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry; independently corroborated live at maclookup.app

Registry / block size

MA-L (24-bit OUI); 2 confirmed blocks under this exact registrant string [Confirmed] — the IEEE MA-L registry; https://maclookup.app/macaddress/542F04, https://maclookup.app/macaddress/30D959

HQ / country

Bldg 1, No.401, Caobao Rd, Xuhui Dist, Shanghai 200233, CN [Confirmed] — the IEEE MA-L registry

Company status

active; publicly traded, dual-listed SSE:603341 (listed 2024-03-01) and HKEX:9611 [Confirmed] — https://pandaily.com/longcheer-technology-lists-in-hong-kong-becomes-the-first-consumer-electronics-odm-stock, https://www.morningstar.com.au/investments/security/shse/603341/summary

Device types

smartphone / tablet / AIoT ODM designs [Confirmed] — https://www.longcheer.com/, https://deviceatlas.com/device-data/devices/longcheer

Notable products / scale

per Frost & Sullivan, world's largest smartphone ODM by 2024 shipment volume (~173M units, ~32.6% share); customers reported to include Xiaomi, Samsung, Lenovo, Honor, OPPO, vivo [Likely — single-sourced to press/analyst coverage, not independently cross-checked against a primary filing] — https://equalocean.com/news/2024030120549

Verified prefix sample

54:2F:04, 30:D9:59 [Confirmed] — the IEEE MA-L registry; https://maclookup.app/macaddress/542F04, https://maclookup.app/macaddress/30D959

Related-entity discrepancy

distinct IEEE registrant string from the two already-DONE entities in vendor-longcheer.md ("LONGCHEER TELECOMMUNICATION LIMITED" and "Longcheer Technology (Singapore) Pte Ltd"), sharing the same Caobao Rd address. That DONE file states 54:2F:04 "could not be confirmed against any IEEE-derived mirror" and omits it as unverified — this appears to be a prior research miss, not a data change, since both prefixes are present in the repo's own the IEEE MA-L registry snapshot and confirmed live. Recommended for operator/checker attention as a correction to vendor-longcheer.md; not edited here (out of scope for this entry).

[Confirmed discrepancy] — /mac/vendor/longcheer/, the IEEE MA-L registry

Registration date

Unknown / not applicable — IEEE's public the IEEE MA-L registry publishes no assignment or registration date. maclookup.app's "First Seen" dates (2022-03-08 for 54:2F:04; 2023-11-07 for 30:D9:59) are third-party crawl/database artifacts, not IEEE facts, and are not recorded as a registration date.

[Confirmed absence, not fabricated] — https://maclookup.app/macaddress/542F04, https://maclookup.app/macaddress/30D959

Security context

no vendor-specific vulnerability, default-credential, or abuse/botnet associations found tied to this OUI or company in this pass [Likely — absence of finding, not exhaustive] — (no citation; negative result)

Analyst note

An OUI in this block identifies the ODM design house, not the retail brand on the device — consistent with the "OUI ≠ brand" pattern already established for the sibling Longcheer entities, Wingtech, and Huaqin.