Acroname Inc. MAC prefix 04:E6:62: device mapping Unknown
Summary
- // what this is
- Acroname is registered to MAC prefix
04:E6:62in the IEEE OUI database. When a device's MAC address begins with04:E6:62, that block was registered by Acroname — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
04:E6:62is a 24-bit MA-L prefix leaving 24 suffix bits (16,777,216 possible values). Its first-byte Group bit (bit 0x01) and Local bit (bit 0x02) are both zero. An exact match fixes these bits; changing either bit produces a different prefix. The possible suffix values are not a device or shipment count. The registry match identifies an assignment, not a particular device, deployment, current identity, or security state. The supplied product page does not map USBStem or BrainStem products to this prefix.
About this vendor.
A MAC address beginning 04:E6:62 matches an IEEE MA-L assignment to Acroname Inc.; the supplied evidence does not identify a device category for this exact prefix. A match identifies the registry assignee, not a specific product or confirmed device maker.
Acroname’s product page describes the 40-pin USBStem as a general-purpose embedded I/O module with USB 2.0, analog and digital I/O, and a USB-to-I2C bridge. The page also describes BrainStem modules and development software, but does not map those products to this prefix.
The prefix is 24 bits of a 48-bit MAC address, leaving 24 suffix bits, or 16,777,216 possible values. Its first-byte Group and Local bits are both zero, so the exact prefix denotes an individual, universally administered block. A captured address matching it supports the assignment match; it does not establish deployment, shipment volume, current identity, or safety.
- Registry assignment
- Acroname Inc.; MA-L prefix
04:E6:62[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device category
- Unknown; no supplied source maps a device category to this exact prefix [Unknown] — https://acroname.com/store/s61-usbstem
- Address interpretation
- 24-bit prefix with a 24-bit suffix; Group bit 0 and Local bit 0 [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Country
- United States is listed as the manufacturing country for the USBStem module [Confirmed] — https://acroname.com/store/s61-usbstem