OUI Lookup
b4b15a
Siemens AG Energy Management Division
Manufacturer Information
- OUI Prefix
- b4b15a
- Manufacturer
- Siemens AG Energy Management Division
- Address
- Humboldtstr. 59 Nurnberg Bavaria DE 90459
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix B4B15A
The OUI prefix B4B15A is assigned to Siemens AG Energy Management Division, based in Humboldtstr. 59 Nurnberg Bavaria DE 90459 . 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 Energy Management Division.