Advance Vision Electronics Co. Ltd. — registered MAC prefix
Summary
- // what this is
- Advance Vision Electronics is registered to MAC prefix
3C:83:B5in the IEEE OUI database. When a device's MAC address begins with3C:83:B5, that block was registered by Advance Vision Electronics — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible values. For this exact prefix, the first-octet Group and Local bits are both 0; a change to either bit creates a different prefix. The possible suffix values do not indicate an actual device or shipment count. A prefix match identifies a registry assignment, not a specific device, product, deployment, current legal identity, or security state.
About this vendor.
A MAC address beginning 3C:83:B5 matches an IEEE MA-L assignment to Advance Vision Electronics Co. Ltd.; the available records do not identify a device category or product for this prefix. The assignment covers a 24-bit prefix, leaving 24 bits for the remainder of a 48-bit address.
For this prefix, the first octet 3C has Group bit 0 and Local bit 0. An exact match therefore has both bits clear; changing either bit produces a different prefix. RFC 7042 explains that these bits distinguish group and locally administered addresses. The 24-bit suffix has 16,777,216 possible values, but that is an address-space count, not a count of devices or shipments.
A match indicates the registered prefix only. It does not establish a particular device, product, deployment, current vendor identity, or security state. The IEEE CSV record provides no assignment date.
- Device category
- Unknown; the available record does not map a device type to this prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Advance Vision Electronics Co. Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
3C:83:B5[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv