ADTEK System Science Co., Ltd.: MAC prefix identifies the registered assignee
Summary
- // what this is
- ADTEK System Science is registered to MAC prefix
00:01:7Ein the IEEE OUI database. When a device's MAC address begins with00:01:7E, that block was registered by ADTEK System Science — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact 24-bit match identifies the registered prefix assignment. In first octet 00, the Group and Local bits are both zero; changing either bit yields a different prefix. The remaining 24 bits permit 16,777,216 possible suffix values, not a count of devices or shipments.
About this vendor.
A MAC address beginning 00:01:7E matches an IEEE MA-L assignment registered to ADTEK System Science Co., Ltd.; the supplied record does not identify a device category or product for this prefix. The match establishes a registry assignment, not the manufacturer of a particular device, its current operator, or its security state.
00:01:7E is a 24-bit prefix, leaving 24 bits for the remaining address. In this prefix’s first octet, 00, the Group bit (bit 0) and Local bit (bit 1) are both zero. Exact matching uses the first 24 bits. Changing either bit changes the prefix and does not match this exact assignment. Although 24 suffix bits allow 16,777,216 possible values, that number does not establish how many devices exist or were shipped.
RFC 7042 describes 48-bit MAC identifiers as using an assigned initial prefix followed by additional bits, and explains the Group and Local bits. The IEEE CSV record provides the legal assignee name and MA-L allocation; it supplies no assignment date. Assignment dates are unavailable in these IEEE CSV records.
- Matching prefix
00:01:7E(24-bit MA-L assignment) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Identified device or product
- Unknown; the assignment record does not specify one [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- Japan, indicated by
JPin the IEEE record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- ADTEK System Science Co., Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:01:7E[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- Japan [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device category
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment date
- Unavailable in this IEEE CSV record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv