Active Control Technology Inc. — MAC Prefix Device Identification Unknown
Summary
- // what this is
- Active Control Technology is registered to MAC prefix
D0:58:75in the IEEE OUI database. When a device's MAC address begins withD0:58:75, that block was registered by Active Control Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An address matching this 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible suffix values; this does not indicate a count of devices or shipments. The first-octet Group and Local bits are both 0 for this exact prefix. Flipping either bit changes the prefix.
About this vendor.
A MAC address beginning D0:58:75 is assigned in the IEEE MA-L registry to Active Control Technology Inc.; the assignment does not identify a device type or establish that this vendor produced the observed device. The supplied evidence contains no first-party product or industry information for this legal entity.
This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That is a mathematical address space, not a device or shipment count. A matching address establishes the prefix match and registry assignment only; it does not establish the device, its operating system, current vendor identity, prevalence, or safety.
The first octet D0 has Group bit 0 and Local bit 0 for this exact prefix. RFC 7042 describes the Group and Local bits in the initial octet and notes that these bits have significance for MAC addresses. Changing either bit produces a different prefix; it does not describe variation among addresses within this fixed prefix.
- Registry assignment
- Active Control Technology Inc. — MA-L
D0:58:75[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device identification
- Unknown; the assignment does not specify a device category [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Matching boundary
D0:58:75fixes the first 24 bits; the final 24 bits allow 16,777,216 possible suffix values [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt- Bit interpretation
- Group bit 0 and Local bit 0 in the first octet of this prefix [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Company
- Active Control Technology Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
D0:58:75[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Canada [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Notable products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv