Ademco Smart Homes Technology(Tianjin)Co.,Ltd. — MAC prefix identification

A MAC address beginning A0:F9:B7 matches an IEEE MA-L assignment registered to Ademco Smart Homes Technology(Tianjin)Co.,Ltd. This identifies the registry assignment only; the supplied records do not identify a device category or product that uses the prefix.

A0:F9:B7 is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That number describes the address space under the prefix, not a count of devices, shipments, or observed addresses. An exact prefix match establishes the first three octets, not the identity or security state of a particular device.

For this prefix, the first octet is A0 (binary 10100000). Its Group bit is 0 and its Local bit is 0. RFC 7042 explains these bit positions and the structure of MAC identifiers. Setting either bit changes the prefix, so a match to the exact assigned prefix has both bits fixed at zero. The supplied IEEE CSV record does not include an assignment date.

Registry and prefix

MA-L, A0:F9:B7 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device category

Unknown; no supplied record maps a device category to this exact prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Registry

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

Company

Ademco Smart Homes Technology(Tianjin)Co.,Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Prefix

A0:F9:B7 [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 date

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

Company website

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