NR ELECTRIC CO., LTD MAC prefixes: device identity unknown

A MAC address beginning with B4:4C:C2 or 2C:60:CD matches an IEEE registry assignment to NR ELECTRIC CO., LTD; the available evidence does not identify a device category using either prefix. The match identifies the registered prefix, not a specific device, operating system, current legal identity, or security state.

Both assignments are MA-L 24-bit prefixes. Each leaves 24 bits for suffix values, giving 16,777,216 possible suffix values per prefix. This is a mathematical range, not a count of devices or shipments. Both prefixes have Group bit 0 and Local bit 0 in their first byte, consistent with individual and globally administered addresses. Changing either bit changes the prefix and is not variation within these fixed assignments.

NR Electric's official catalog covers protection, automation and control, HVDC and FACTS, and renewable energy and microgrid products. It lists products such as the PCS-9700 Automation System, PCS-9700 Renewable Energy SCADA, and PCS-9580 Static Var Compensator. The catalog establishes company product context, but does not map any product to these prefixes. For identification, compare the complete first three bytes against the assignments; a matching prefix alone cannot establish the device model.

Matching prefixes

B4:4C:C2 and 2C:60:CD (both MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device category

Unknown; the supplied evidence does not map a device category to either exact prefix [Unknown] — https://www.nrec.com/en/index.php/welcome.html

Registry

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

Assigned prefixes

B4:4C:C2, 2C:60:CD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Company products

Protection, automation and control, HVDC and FACTS, renewable energy and microgrid; includes PCS-9700 Automation System, PCS-9700 Renewable Energy SCADA, and PCS-9580 Static Var Compensator [Confirmed] — https://www.nrec.com/en/index.php/welcome.html

Industry

Power systems [Confirmed] — https://www.nrec.com/en/index.php/welcome.html

Device types

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

Country

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

Assignment date

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