OUI Lookup
20a8b9
SIEMENS AG
Manufacturer Information
- OUI Prefix
- 20a8b9
- Manufacturer
- SIEMENS AG
- Address
- Oestliche Rheinbrueckenstrasse 50 Karlsruhe Baden Wuerttemberg DE 76187
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 7
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 20A8B9
The OUI prefix 20A8B9 is assigned to SIEMENS AG, based in Oestliche Rheinbrueckenstrasse 50 Karlsruhe Baden Wuerttemberg DE 76187 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to SIEMENS AG.
Other prefixes from SIEMENS AG
384b24SIEMENS AGec1c5dSiemens AG000e8cSiemens AG286336Siemens AGb4b15aSiemens AG Energy Management Division789f87Siemens AG I IA PP PRM001ff8Siemens AG, Sector Industry, Drive Technologies, Motion Control Systems000d41Siemens AG ICM MP UC RD IT KLF1ac6417Siemens AG883f99Siemens AG683e02SIEMENS AG, Digital Factory, Motion Control System208756SIEMENS AG080006SIEMENS AGa86d04Siemens AG302f1eSIEMENS AG301389Siemens AG, Automations & Drives,001133Siemens AG Austria40ecf8Siemens AGd4f527SIEMENS AG10dffcSiemens AG000ba3Siemens AG884b39Siemens AG, Healthcare Sector001b1bSiemens AG,001928Siemens AG, Transportation Systems