Adam Communications Systems Int Ltd — MAC Prefix Identification Unknown
Summary
- // what this is
- Adam Communications Systems Int is registered to MAC prefix
00:1D:64in the IEEE OUI database. When a device's MAC address begins with00:1D:64, that block was registered by Adam Communications Systems Int — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The 24-bit prefix has 24 remaining bits, permitting 16,777,216 suffix values; this is not a device or shipment count. For
00:1D:64, the first-octet Group and Local bits are both zero. A literal match identifies the registry assignment only.
About this vendor.
A MAC address beginning with 00:1D:64 is registered to Adam Communications Systems Int Ltd; the supplied records do not identify a device category or product for this prefix. The assignment identifies the organization named in the IEEE registry, not a particular device, current vendor identity, or security status.
The assigned MA-L prefix is 24 bits long, leaving 24 bits for the remaining address. That gives 16,777,216 mathematically possible suffix values, not a count of devices, shipments, or observed addresses. Match the first 24 bits to identify this registry assignment; a captured match alone does not establish which product or device used it.
For this exact prefix, the first octet is 00: its Group bit and Local bit are both zero. RFC 7042 describes the Group bit (01) and Local bit (02) in the first octet. Because these bits are fixed in the literal assigned prefix, changing either creates a different prefix; their variation does not describe addresses within this fixed assignment. Assignment dates are unavailable in these IEEE CSV records.
- Device or product identification
- Unknown from the supplied records [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Registry and prefix
- MA-L,
00:1D:64[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Adam Communications Systems Int Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:1D:64[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- GB [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv