Longcheer is a Chinese phone ODM, and its MAC footprint spans two IEEE registrants that should be aliased to one family: "LONGCHEER TELECOMMUNICATION LIMITED" (4 prefixes; MA-L; Shanghai) and "Longcheer Technology (Singapore) Pte Ltd" (1 prefix; Singapore). Verified samples under the Telecommunication Limited entity include B8:DE:5E and 8C:77:16. These OUIs appear on smartphones, tablets, and smart devices built for many brands, with a focus on budget and emerging-market handsets, so a Longcheer OUI may appear on a device sold under another brand — the same phone-ODM "OUI ≠ brand" pattern as Wingtech and Huaqin. For triage, a Longcheer OUI identifies the ODM and is common on budget or white-label handsets sold under many brands.
- IEEE assignment
- two entities — "LONGCHEER TELECOMMUNICATION LIMITED" (4; MA-L; B8:DE:5E, 8C:77:16, 0C:25:76, FC:3D:93; Shanghai), "Longcheer Technology (Singapore) Pte Ltd" (1; 00:23:B1; Singapore) [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; ~4 blocks under the Telecommunication Limited entity + 1 under the Singapore entity [Confirmed] — maclookup.app, hwaddress.com (IEEE-derived). 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" from third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- Building 1, No.401 Caobao Rd, Xuhui District, Shanghai 200233, China (LONGCHEER TELECOMMUNICATION LIMITED); a Singapore entity also registered [Confirmed] — hwaddress.com
- Company status
- active [Confirmed] — longcheer.com
- Device types
- smartphones, tablets, smart devices built for many brands (budget/emerging-market focus) [Confirmed] — maclookup.app
- Notable products
- ODM budget/white-label smartphones for many brands
- Verified prefix sample
- B8:DE:5E, 8C:77:16 → "LONGCHEER TELECOMMUNICATION LIMITED" [Confirmed] — maclookup.app, hwaddress.com
- Unverified prefix
- 54:2F:04 (proposed → "Shanghai Longcheer Technology Co.") could NOT be confirmed against any IEEE-derived mirror and is NOT included — possible transcription error (note 54:32:04 = Espressif Inc.). No IEEE OUI registrant string "Shanghai Longcheer Technology Co." was found (the SSE-listed corporate entity 603341 is not an OUI assignee). [Unverified — omitted]
- Special note
- Phone-ODM "OUI ≠ brand" case (same pattern as Wingtech/Huaqin), with a budget/emerging-market focus. Two IEEE registrant strings only — "LONGCHEER TELECOMMUNICATION LIMITED" and "Longcheer Technology (Singapore) Pte Ltd". [Confirmed] — maclookup.app/vendors/longcheer-telecommunication-limited
- Related vendors
- none significant (ODM to many brands)
- Analyst note
- A Longcheer OUI identifies the ODM; common on budget/white-label handsets sold under many brands.