ALCON TELECOMMUNICATIONS CO., LTD. — vendor assignment; device unknown
Summary
- // what this is
- Alcon Telecommunications is registered to MAC prefix
00:23:28in the IEEE OUI database. When a device's MAC address begins with00:23:28, that block was registered by Alcon Telecommunications — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact match identifies the MA-L registry assignment, not a specific device, deployment, current operator, or security state. This 24-bit prefix leaves 24 suffix bits (16,777,216 possible values). The first-octet Group and Local bits are both clear and fixed for this exact prefix; changing either bit yields a different prefix.
About this vendor.
A MAC address beginning 00:23:28 matches an IEEE MA-L assignment registered to ALCON TELECOMMUNICATIONS CO., LTD.; the supplied evidence does not identify a device category or product using this prefix. A match supports identifying the registry assignment, not the device’s manufacturer, current operator, deployment, or security state.
This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That is a mathematical address-space count, not a count of devices or shipments. In the first octet 00, the Group bit (0x01) and Local bit (0x02) are both clear. Those bits are fixed for an exact 00:23:28 prefix match; changing either bit produces a different prefix. RFC 7042 describes the EUI-48 structure and these bit meanings.
The IEEE record’s address gives Taiwan as the country indication. Assignment dates are unavailable in these IEEE CSV records.
- Vendor assignment
- A MAC beginning
00:23:28matches ALCON TELECOMMUNICATIONS CO., LTD. in the MA-L registry; device category unknown. - Prefix
00:23:28(24 bits); 24 suffix bits permit 16,777,216 possible values, not an observed device count.- Address bits
- Group bit
0and Local bit0in the first octet; either bit changing yields a different prefix.
- Company
- ALCON TELECOMMUNICATIONS CO., LTD. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:23:28[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Taiwan [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device category
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment date
- Unavailable [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv