ADID SA: MAC prefix identifies an IEEE registry assignment
Summary
- // what this is
- ADID is registered to MAC prefix
00:30:7Cin the IEEE OUI database. When a device's MAC address begins with00:30:7C, that block was registered by ADID — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The IEEE record provides an address containing the country-code-like indicator “FR,” but the supplied source does not unambiguously establish a country; country is left null. An exact match to 00:30:7C fixes Group bit 0 and Local bit 0 in the first byte. The 24-bit prefix leaves 24 suffix bits, or 16,777,216 possible suffix values; this is not an observed device count.
About this vendor.
A MAC address beginning with 00:30:7C matches the IEEE MA-L assignment registered to ADID SA. The record establishes the registry holder; it does not identify a device category, product, deployment, or current operator. No supplied first-party material documents ADID SA’s products, industry, website, or status, so those details are not established here.
This is a single 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That arithmetic describes the address space under the prefix, not a count of devices or shipments. A captured address matching the prefix supports an assignment match only; it cannot establish which device or product used it.
For 00:30:7C, the first octet’s Group bit and Local bit are both zero. These values are fixed for an exact literal prefix match; changing either bit changes the prefix. RFC 7042 identifies the Group bit (01) and Local bit (02) as significant in MAC addresses and says OUIs and longer MAC prefixes are assigned with the Local bit zero and the Group bit unspecified.
The supplied RFC excerpt does not explain the Local bit’s meaning, and these bit values alone do not identify a particular device.
- Country
- FR indication in the registry record; no country claim is made from this indicator alone [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- ADID SA [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
00:30:7C[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown
- Notable products
- Unknown
- Industry
- Unknown
- Country
- Unknown
- Organization status
- Unknown
- Website
- Unknown
- Related vendors
- Unknown
- Historic prefix
- Unknown
- Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv