Securitas Direct AB MAC prefixes: vendor identification only

A MAC address beginning 00:23:C1 or 24:C3:F9 matches an IEEE MA-L assignment to Securitas Direct AB; the records do not identify a device category. Both prefixes are 24 bits long, so a match establishes the first three octets only. RFC 7042 explains that an EUI-48 uses an initial assigned prefix followed by bits available beyond that prefix, and that the Group and Local bits are in the first octet.

For both listed prefixes, the first-octet Group bit and Local bit are zero. Those values are fixed for an exact literal prefix match. Flipping either bit changes the prefix and therefore no longer produces an exact match to these assignments. Each 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible suffix values; that arithmetic describes address space, not a count of devices or shipments.

The supplied IEEE MA-L records list Securitas Direct AB for both assignments. They include no assignment dates. A prefix match identifies a registry assignment, not a particular product, operating system, deployment, current legal identity, or security state. The supplied evidence does not support a device type or product-to-prefix mapping.

Matching prefixes

00:23:C1 and 24:C3:F9; both MA-L, 24 bits [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device category

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

Company

Securitas Direct AB [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Country

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

Registry

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

Prefixes

00:23:C1 and 24:C3:F9 [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