MAC address vendor

Adolf Thies GmbH & Co. KG MAC Prefix: 00:24:AD

Primary prefix
00:24:AD
Block
MA-L

Summary

// what this is
Adolf Thies Gmbh & Co. KG is registered to MAC prefix 00:24:AD in the IEEE OUI database. When a device's MAC address begins with 00:24:AD, that block was registered by Adolf Thies Gmbh & Co. KG — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The exact prefix has Group bit 0 and Local bit 0 in its first octet. Flipping either bit changes the prefix and no longer matches this assignment. A match identifies the registry assignment only, not a particular product, device, operator, or security state.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  3 sources  ·  How this page is checked

A MAC address beginning with 00:24:AD matches an IEEE MA-L assignment to Adolf Thies Gmbh & Co. KG; the assignment does not identify a particular device or product. The supplied company page describes Adolf Thies GmbH & Co. KG as a sensor manufacturer and says it accepts covered products for environmentally sound disposal and recycling.

00:24:AD is a 24-bit prefix, leaving 24 bits for the address suffix: 16,777,216 possible suffix values. This is a mathematical range, not a count of devices, shipments, or observed network use. The exact prefix has Group bit 0 and Local bit 0 in its first octet (00), consistent with an individual, globally administered address interpretation under RFC 7042. Changing either bit changes the prefix and no longer exactly matches this assignment.

A prefix match supports only that the captured address falls within this registry assignment. It cannot establish which sensor or other device is involved, who currently operates it, or its safety. The company page provides no mapping from this prefix to a device category or product.

Registry assignment
Adolf Thies Gmbh & Co. KG — 00:24:AD (MA-L) [Confirmed]
Device class
Unknown; no device category is mapped to this exact prefix [Unknown]
Company context
The official page describes the company as a sensor manufacturer [Confirmed]
Address interpretation
24-bit prefix; 24 suffix bits allow 16,777,216 values [Confirmed]
Company
Adolf Thies Gmbh & Co. KG [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
00:24:AD (MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Total assigned prefixes
1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Germany [Confirmed] — https://www.thiesclima.com/de/impressum/
Industry
Sensor manufacturing [Confirmed] — https://www.thiesclima.com/de/impressum/
Notable products
Sensors; the page does not specify product models [Confirmed] — https://www.thiesclima.com/de/impressum/
Device types
Unknown; no category is tied to this exact prefix [Unknown] — https://www.thiesclima.com/de/impressum/
Assignment dates
Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:24:ADMA-L
[ 03 ] — Related

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