Ablerex Electronics Co., LTD — MAC prefix identification
Summary
- // what this is
- Ablerex Electronics is registered to MAC prefix
00:0F:7Ein the IEEE OUI database. When a device's MAC address begins with00:0F:7E, that block was registered by Ablerex Electronics — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
About this vendor.
A MAC address beginning 00:0F:7E matches an IEEE MA-L assignment to Ablerex Electronics Co., LTD; the supplied records do not identify a device category for this prefix. The match establishes the registered assignment associated with the prefix, not the address’s current user, a specific product, or the identity or security state of a device.
The assignment is 24 bits long, leaving 24 bits for suffix values: 16,777,216 possible values within the matching range. This is a mathematical address-space count, not a count of devices, shipments, or addresses actually in use. For this literal prefix, the first octet is 00: its Group bit and Local bit are both zero. Changing either bit changes the prefix and no longer matches this exact assignment.
RFC 7042 explains that 48-bit MAC identifiers use an initial OUI or longer assigned prefix followed by additional bits, and describes the Group and Local bits. Compare the first 24 bits of a captured address with 00:0F:7E to check for this assignment. An exact match does not establish the manufacturer of every component or where the address is currently deployed.
- Device category
- Unknown; the supplied records do not map this prefix to a device category [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment
00:0F:7E(MA-L, 24-bit prefix) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Matching boundary
- Compare the first 24 bits; the remaining 24 bits allow 16,777,216 possible suffix values [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Group and Local bits
- Both are zero in the literal first octet
00; changing either bit produces a different prefix [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Company
- Ablerex Electronics Co., LTD [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
00:0F:7E[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv