ACX GmbH — identified by MAC prefix 70:31:87
Summary
- // what this is
- ACX is registered to MAC prefix
70:31:87in the IEEE OUI database. When a device's MAC address begins with70:31:87, that block was registered by ACX — 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 (16,777,216 possible suffix values). This is address-space capacity, not a device or shipment count. For this literal prefix, the first-byte Group and Local bits are both zero; changing either bit creates a different prefix. A match identifies the registry assignment only, not a specific device, product, operating system, current identity, or security state.
About this vendor.
A MAC address beginning 70:31:87 matches the IEEE MA-L assignment to ACX GmbH; the record identifies the registrant, not a device type or product. The available evidence gives no product or device mapping for this prefix.
This is a 24-bit prefix, leaving 24 bits for suffixes: 16,777,216 possible values. That is a mathematical address-space count, not a count of devices, shipments, or addresses in use. A match establishes only that the captured address begins with the assigned prefix.
For 70:31:87, the first-byte Group bit and Local bit are both zero. In an exact literal match, those bits are fixed. Changing either bit produces a different prefix; RFC 7042 explains their significance for group and local MAC identifiers. The supplied IEEE CSV record does not display an assignment date.
- Device type
- Unknown; no device category is mapped to this prefix [Unknown]
- Company
- ACX GmbH [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
70:31:87[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Germany, indicated by
DEin the registry record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device category
- Unknown [Unknown]
- Products
- Unknown [Unknown]
- Industry
- Unknown [Unknown]
- Website
- Unknown [Unknown]
- Organization status
- Unknown [Unknown]
- Related vendors
- Unknown [Unknown]