Wintecronics Ltd. MAC Prefixes: Vendor Known, Device Unknown

A MAC address beginning with 48:36:5F or 00:15:F7 matches a prefix registered to Wintecronics Ltd.; the supplied records do not identify a device category. Both are MA-L assignments with 24-bit prefixes, leaving 24 address bits after each match. The IEEE records give Taiwan (R.O.C.) as the country-level location, but do not establish where a particular device is deployed or who operates it now.

For both registered prefixes, the first-byte Group and Local bits are 0, according to the supplied address interpretation. Since these bits are fixed in each exact 24-bit prefix, changing either produces a different prefix. A match identifies the registered prefix only; it does not establish a product, device, operating system, traffic prevalence, or security state.

Each 24-bit prefix leaves 2^24 possible suffix values, or 16,777,216 combinations. This is an address-space size, not a count of devices or shipments. Use the complete prefix when comparing a captured MAC address; a match covers only the first 24 bits.

Device category

Unknown from the supplied records [Unknown]

Registry

MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Company

Wintecronics Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Prefixes

48:36:5F and 00:15:F7 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Country

Taiwan (R.O.C.) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device category

Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv