16063 (00:19:74): Registered MAC Prefix, Vendor Identity Unknown
Summary
- // what this is
- 16063 is registered to MAC prefix
00:19:74in the IEEE OUI database. When a device's MAC address begins with00:19:74, that block was registered by 16063 — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact match establishes the assigned 24-bit prefix only. Its first-octet Group and Local bits are both 0; changing either changes the prefix. The 24-bit suffix permits 16,777,216 possible values, not an observed device or shipment count. RFC 7042 describes MAC identifiers as structured with assigned prefixes.
About this vendor.
A MAC address beginning 00:19:74 matches an IEEE MA-L assignment to the organization name 16063; the supplied records do not identify a device type or explain the vendor name. The assignment identifies a registry holder, not a particular device, product, or current legal identity.
The projection contains one full prefix, 00:19:74, with 24 bits assigned and 24 suffix bits remaining. A matching captured address can establish that its first three octets match this assignment, but it does not establish deployment, traffic prevalence, or how many devices use it.
For this prefix, the first octet is 00: its Group bit and Local bit are both 0. Those values are fixed for an exact match. Changing either bit produces a different prefix. The 24 remaining bits allow 16,777,216 possible suffix values; this is a mathematical address-space count, not a device or shipment count. RFC 7042 describes the relationship between MAC identifiers and assigned prefixes.
- Device identity
- Unknown; the record does not identify a device category [Unknown]
- Possible suffix values
- 16,777,216 across the 24 remaining bits; not a device count [Confirmed]