Ad-Sol Nissin Corp: MAC prefix identification
Summary
- // what this is
- Ad-Sol Nissin is registered to MAC prefix
10:6F:EFin the IEEE OUI database. When a device's MAC address begins with10:6F:EF, that block was registered by Ad-Sol Nissin — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The supplied projection gives a 24-bit match boundary and 24 suffix bits (16,777,216 possible suffix values). For prefix 10:6F:EF, the first-octet Group and Local bits are both 0; changing either bit changes the prefix. Suffix-value capacity is not an observed device or shipment count. A prefix match indicates a registry assignment, not a particular device or security state.
About this vendor.
A MAC address beginning with 10:6F:EF matches an IEEE MA-L assignment registered to Ad-Sol Nissin Corp; the supplied evidence does not identify a device type or product using it. The assignment identifies a registry holder, not a particular device, current vendor identity, traffic source, or security state.
This 24-bit prefix leaves 24 bits for suffix values, or 16,777,216 possible values. That is a mathematical address-space count, not a count of devices, shipments, or observed addresses. The supplied IEEE record includes a Tokyo, Japan address, supporting country-level identification as Japan.
RFC 7042 describes the Group and Local bits in the first octet. For this exact prefix, both are fixed at zero: 10 has its least significant bit clear (Group) and its next least significant bit clear (Local). Setting either bit changes the literal prefix and therefore no longer matches 10:6F:EF. Use the first three octets to check this assignment; a match alone cannot establish deployment or use.
- Registry match
- Ad-Sol Nissin Corp, IEEE MA-L assignment
10:6F:EF[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device type
- Unknown; no device category is mapped to this exact prefix in the supplied evidence [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Technical interpretation
- 24-bit match boundary; Group bit 0 and Local bit 0 in the first octet [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt