OUI Lookup
f4b19c
AltoBeam (China) Inc.
Manufacturer Information
- OUI Prefix
- f4b19c
- Manufacturer
- AltoBeam (China) Inc.
- Address
- B808, Tsinghua Tongfang Hi-Tech Plaza, Haidian Beijing Beijing CN 100083
- Last updated
- 6/9/2026
Vendor Statistics
- Total prefixes
- 8
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix F4B19C
The OUI prefix F4B19C is assigned to AltoBeam (China) Inc., based in B808, Tsinghua Tongfang Hi-Tech Plaza, Haidian Beijing Beijing CN 100083 . 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 AltoBeam (China) Inc..