AARTESYS AG: MAC Vendor Identified, Device Unknown
Summary
- // what this is
- Aartesys is registered to MAC prefix
E4:77:6Bin the IEEE OUI database. When a device's MAC address begins withE4:77:6B, that block was registered by Aartesys — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A prefix match identifies the IEEE registry assignment only; it does not establish a particular device, product, current vendor identity, deployment, traffic prevalence, or security state. The supplied company imprint confirms the legal name Aartesys AG and its UID but provides no product or device-to-prefix mapping.
About this vendor.
A MAC address beginning with E4:77:6B matches an IEEE MA-L assignment to AARTESYS AG. This identifies the registered organization for that prefix; the supplied records do not identify a device type or establish which product, if any, uses it.
The assignment is 24 bits long, leaving 24 bits for suffix values. That yields 16,777,216 possible suffixes within the prefix, not a count of devices, addresses observed in use, or shipments. The first-byte Group and Local bits are both zero for this exact prefix. Changing either bit produces a different prefix, so the bit interpretation does not describe variation within the assigned prefix.
RFC 7042 describes MAC identifiers as an assigned prefix followed by additional bits, and explains the Group and Local bits. The company imprint confirms the legal name Aartesys AG and a Swiss UID; it does not provide product or device-to-prefix mapping. A prefix match alone does not establish current vendor identity, deployment, traffic prevalence, or security status.
- MAC prefix
E4:77:6B(24-bit MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Assignment scope
- One IEEE MA-L prefix; assignment does not establish observed deployment [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- AARTESYS AG [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
E4:77:6B[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Switzerland [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Products
- Unknown [Unknown] — https://aartesys.com/en/imprint/
- Industry
- Unknown [Unknown] — https://aartesys.com/en/imprint/
- Website
- https://aartesys.com/en/imprint/ [Confirmed] — https://aartesys.com/en/imprint/
- Organization status
- Unknown [Unknown] — https://aartesys.com/en/imprint/
- Related vendors
- Unknown [Unknown] — https://aartesys.com/en/imprint/
- Historic prefix
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv