Suzhou Hanming Technologies Co., Ltd. MAC prefixes: device unknown

A MAC address beginning with 70:65:82 or 7C:DD:76 matches an IEEE MA-L assignment to Suzhou Hanming Technologies Co., Ltd.; the available records do not identify a device category or product for either prefix.

Each listed prefix is 24 bits long, leaving 24 suffix bits and 16,777,216 possible suffix values. That is a mathematical address-space size, not a count of devices, shipments, or observed addresses.

For both exact prefixes, the Group and Local bits in the first octet are zero. RFC 7042 explains these bits’ roles in MAC identifiers. Changing either bit changes the prefix, so this interpretation applies to addresses matching the listed prefixes exactly; it does not describe all addresses derived by changing those bits. An address match indicates a registry assignment and does not establish a specific device, deployment, current identity, or security status.

Matching prefixes

70:65:82 and 7C:DD:76, each an MA-L /24 assignment [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device category

Unknown; no category is mapped to these exact prefixes in the supplied records [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Company

Suzhou Hanming Technologies Co., Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Prefixes

70:65:82 and 7C:DD:76 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Registry

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

Country

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

Device types

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

Assignment dates

Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv