AD SYSTEMS CORP. — MAC prefix identification
Summary
- // what this is
- AD Systems is registered to MAC prefix
00:50:D5in the IEEE OUI database. When a device's MAC address begins with00:50:D5, that block was registered by AD Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
About this vendor.
A MAC address beginning 00:50:D5 matches the MA-L prefix assigned to AD SYSTEMS CORP.; the available record does not identify a device type or product using it. The prefix establishes a registry match, not the device’s current operator, deployment, or security state.
This is a 24-bit prefix, leaving 24 bits for the remainder of a 48-bit address. It therefore has 16,777,216 possible suffix values, a mathematical range rather than a count of devices or shipments. The captured address can be checked against the first three octets; a match identifies the registered assignment only.
The first octet is 00: its Group bit and Local bit are both zero. For this exact literal prefix, those bit values are fixed. Changing either bit changes the prefix and is not a variation within this assignment. RFC 7042 describes the significance of these bits and the structure of 48-bit MAC identifiers.
- Vendor
- AD SYSTEMS CORP. is the MA-L registrant for
00:50:D5. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device type
- Unknown; the supplied records do not map a device category to this prefix. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- AD SYSTEMS CORP. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:50:D5(MA-L; 24 bits). [Confirmed] — 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
- Country
- Japan. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv