MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address prefix A4:61:77 is registered to AMOSENSE, located at Narutu street 56SEOUL Sucho gu 06527KR.
This registration is classified as MA-L (Mac Address Block Large) containing 16,777,216 MAC addresses (2^24)
The prefix was registered on 10 February 2026, and no subsequent updates have been recorded.
OUI: A4:61:77
Vendor name: AMOSENSE
Address:
Assignment Type MA-L Narutu street 56
SEOUL Sucho gu 06527
KR.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 10 February 2026
