Akenori PTE Ltd MAC prefixes: device identity unknown
Summary
- // what this is
- Akenori is registered to MAC prefix
D4:2F:23and 2 more in the IEEE OUI database. When a device's MAC address begins withD4:2F:23, that block was registered by Akenori — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The three assignments have 24-, 28-, and 36-bit matching boundaries. Their Group and Local bits are fixed at zero in the exact prefixes. Suffix capacity describes possible address values, not device or shipment counts. A matching prefix indicates a registry assignment, not a specific device or deployment.
About this vendor.
A MAC address beginning with one of these prefixes identifies an IEEE registry assignment to Akenori PTE Ltd; the supplied evidence does not identify a device category or a specific product. The records list three assignments: one MA-L, one MA-M, and one MA-S. They also give Singapore as the registrant address country. The registry entries alone do not establish where these addresses are deployed or whether the registrant’s current legal identity has changed.
The prefixes have different matching boundaries: D4:2F:23 matches 24 bits, 80:E4:DA:E/28 matches 28 bits, and 70:B3:D5:6A:5/36 matches 36 bits. Their first bytes are D4, 80, and 70; each has Group and Local bits set to zero. A captured address matching a prefix therefore has those fixed first-byte bits. Changing either bit changes the prefix; it does not describe variation within that exact assignment.
The remaining suffixes contain 24, 20, and 12 bits, allowing 16,777,216, 1,048,576, and 4,096 possible values respectively. These are address-space possibilities, not counts of devices or shipments. RFC 7042 describes MAC identifiers as using an initial OUI or a longer assigned prefix, followed by additional bits. A match can establish the matching registry prefix, but not a particular device, product, operating system, deployment, or security state.
- Vendor
- Akenori PTE Ltd is the organization named in the three supplied IEEE assignments.
- Device category
- Unknown; no supplied source maps a device category to these exact prefixes.
- Country
- Singapore, as shown in the IEEE assignment records.
- Registry prefixes
D4:2F:23(MA-L),80:E4:DA:E/28(MA-M), and70:B3:D5:6A:5/36(MA-S).
- Company
- Akenori PTE Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv; MA-M [Confirmed] — https://standards-oui.ieee.org/oui28/mam.csv; MA-S [Confirmed] — https://standards-oui.ieee.org/oui36/oui36.csv
- Prefixes
D4:2F:23[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv;80:E4:DA:E/28[Confirmed] — https://standards-oui.ieee.org/oui28/mam.csv;70:B3:D5:6A:5/36[Confirmed] — https://standards-oui.ieee.org/oui36/oui36.csv- Country
- Singapore [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device category
- Unknown [Unknown] — https://www.rfc-editor.org/rfc/rfc7042.txt