Accordance Systems Inc. MAC Prefix BC:3E:13 — Vendor Only
Summary
- // what this is
- Accordance Systems is registered to MAC prefix
BC:3E:13in the IEEE OUI database. When a device's MAC address begins withBC:3E:13, that block was registered by Accordance Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A MAC address beginning BC:3E:13 matches the Accordance Systems Inc. MA-L registry prefix. Its 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible values; this is an address-space count, not a device or shipment count. The first-octet Group and Local bits are both zero in this exact prefix. A changed bit produces a different prefix. A match identifies the registry assignment only, not a particular device, deployment, prevalence, or security state.
About this vendor.
A MAC address beginning BC:3E:13 is registered to Accordance Systems Inc.; the assignment does not identify a particular device or product. The supplied IEEE MA-L record lists that exact legal name and prefix. It does not provide evidence about the company’s products, industry, website, or current identity.
This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values within the block. That number describes the address space, not the number of devices made, shipped, or observed. A matching address supports an association with the registry assignment only; it does not establish deployment, prevalence, or safety.
The first octet BC has Group bit 0 and Local bit 0 in this exact prefix. Those bits are fixed for a literal BC:3E:13 match. Turning either bit on changes the prefix, so addresses with changed bits do not match this assignment. RFC 7042 explains the significance of these bits and the structure of 48-bit MAC identifiers.
- Assigned prefix
BC:3E:13(24 bits; MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device category
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- TW is present in the registry address record; country-level identity is not explicitly established [Unknown] — https://standards-oui.ieee.org/oui/oui.csv