Shenzhen Skyworth Display Technologies Co.,Ltd MAC prefixes: device identity unknown

A MAC address beginning with 9C:1F:E6 or E4:FD:9D matches an IEEE MA-L assignment listed to Shenzhen Skyworth Display Technologies Co.,Ltd. The assignment identifies the registry holder; the supplied evidence does not identify a device category or establish that a particular product uses either prefix.

Both entries are 24-bit prefixes, leaving 24 bits for suffix values: 16,777,216 possible values per prefix. This is a mathematical address-space size, not a count of devices or shipments. For both prefixes, the first octet has Group bit 0 and Local bit 0. Those bits are fixed for an exact prefix match; changing either creates a different prefix.

RFC 7042 describes 48-bit MAC identifiers as an assigned prefix followed by additional bits, and explains the Group and Local bits. A matching captured address supports identifying the matching assignment only; it does not establish the device, current vendor identity, deployment, prevalence, or security state.

Registry match

9C:1F:E6 and E4:FD:9D are listed to Shenzhen Skyworth Display Technologies Co.,Ltd as MA-L assignments. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device identity

The supplied records do not identify a device category for either exact prefix. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Address interpretation

Each prefix fixes 24 bits and leaves 24 suffix bits; Group and Local bits are both zero in each first octet. [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt

Company

Shenzhen Skyworth Display Technologies Co.,Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Country

China, indicated by CN in the IEEE record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Registry

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

Device types

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