MAC Address Lookup

AltoBeam Inc. F4:B1:9C

F4:B1:9C is a 24-bit MA-L MAC address block registered to AltoBeam Inc. in CN.

Vendor

AltoBeam Inc.

MA-L · 24-bit
F4:B1:9C

Unicast · Universally administered (U/L bit clear)

Matched prefix
F4:B1:9C
Match
MA-L assignment
Address range
F4:B1:9C:00:00:00 – F4:B1:9C:FF:FF:FF
Addresses in block
16,777,216
Country
CN
Organization address
B808, Tsinghua Tongfang Hi-Tech Plaza, Haidian Beijing Beijing CN 100083
First registered
Jun 4, 2021

Formats

  • Plain hex F4B19C
  • Colon-separated F4:B1:9C
  • Hyphen-separated F4-B1-9C
  • Cisco dot notation F4B1.9C

Prefix lineage

This prefix has changed hands. Dates are when each change was first observed in public registration data (runZero mac-tracker).

  1. AltoBeam (China) Inc. Jun 4, 2021
  2. AltoBeam Inc. Jun 16, 2026