Sun Cupid Technology (HK) LTD — 3 prefixes (MA-L)

A MAC address starting with A4:4B:15, 54:E7:D5, or 68:A4:7D belongs to Sun Cupid Technology (HK) LTD, a Hong Kong-based ODM/OEM electronics manufacturer, and typically appears on LTE smartphones, tablets, Bluetooth accessories, or set-top boxes it produces.

All three blocks are ordinary IEEE MA-L (/24) registrant assignments, not shared/sub-allocated bases like 70:B3:D5 — each is owned outright by this one company, which is itself a signal of real operating substance rather than a bare single-OUI shell registration.

Two of the three blocks (A4:4B:15 and 54:E7:D5) share one registered address in Tsim Sha Tsui, Kowloon; the third (68:A4:7D) is registered to a separate Kowloon address, CEO Tower on Wing Hong Street — both are checkable Hong Kong business addresses rather than a residential or PO-box registration.

Independent research corroborates the OUI data: dozens of FCC equipment-authorization filings under grantee code 2ADIN show LTE smartphone, tablet, and phone models (S6003L, S6008L, T1001L, NUUA3, and others) carrying dual-band WiFi and Bluetooth radios, and third-party business profiles (GlobalSources, D&B) describe a Hong Kong-headquartered, Shenzhen-manufacturing electronics OEM founded in 1979.

No security advisories, CVEs, or abuse associations were found for this vendor or its device lines in this pass — a sourced absence of findings, not a confirmed clean record.

IEEE assignment

3 prefixes → Sun Cupid Technology (HK) LTD [Confirmed] — the IEEE MA-L registry A44B15, 54E7D5, 68A47D

Registry / block size

MA-L (24-bit OUI); no MA-M, MA-S, or OUI36 assignments found for this vendor [Confirmed] — the IEEE MA-L registry A44B15, 54E7D5, 68A47D

HQ / registered address

Room 1201-3, 12/F., Tower 6, Tsim Sha Tsui, HK (A44B15, 54E7D5); 16/F, CEO Tower, 77 Wing Hong Street, Kowloon, HK (68A47D) [Confirmed] — the IEEE MA-L registry A44B15, 54E7D5, 68A47D

Company status

active — Hong Kong-headquartered ODM/OEM electronics manufacturer, founded 1979 [Likely] — https://www.globalsources.com/sun-cupid/company-profile_6008840354701.htm (single-aggregator profile; corroborated by an active FCC filing history under grantee code 2ADIN)

Device types

LTE smartphones, tablets, Bluetooth wireless accessories (speakers, power banks, stylus pens/cases), set-top boxes/TV receivers [Confirmed] — https://fccid.io/2ADIN, https://fccid.io/2ADINS6003L

Notable products

S6003L, S6008L, S6512L, S6601L, S5702L (LTE smartphones); T1001L, T1005L (tablets); NUUA3, NUUX1 (phones) [Confirmed] — https://fccid.io/2ADIN

Verified sample prefixes (all MA-L, Sun Cupid Technology (HK) LTD)

A4:4B:15, 54:E7:D5, 68:A4:7D [Confirmed] — the IEEE MA-L registry A44B15, 54E7D5, 68A47D

Registration dates

Unknown — IEEE does not publish MAC address assignment/registration dates in the OUI registry (the IEEE MA-L registry columns are Registry, Assignment, Organization Name, Organization Address only); no third-party "date registered" was used [Confirmed] — the IEEE MA-L registry

Company background

privately held OEM/ODM electronics manufacturer, ~2,500+ employees, US$100-249M annual sales, Shenzhen (Longgang District) manufacturing base with 20 SMT/assembly lines [Likely] — https://www.globalsources.com/sun-cupid/company-profile_6008840354701.htm (a separate ZoomInfo-derived figure cites 500-999 employees; third-party aggregator estimates vary and are non-authoritative)

Security context

no CVEs, disclosed vulnerabilities, or abuse/botnet associations found for this vendor or its device lines in this pass [Unknown] — sourced absence of findings, not a confirmed clean record

Related vendors

none found

Analyst note

three independently-registered MA-L blocks (not a shared IEEE base) all resolve to one identifiable, FCC-filing-active Hong Kong electronics manufacturer — treat OUI matches on these prefixes as reliable identification, subject to the usual caveat that mobile-device MAC randomization can mask the true OUI on Wi-Fi.