MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
RayService a.s.
MAC address prefix EC:B5:AF is registered to RayService a.s., located at Huštěnovská 2022Staré Město Czech Republic 686 03CZ.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was registered on 10 March 2026, and no subsequent updates have been recorded.
OUI: EC:B5:AF
Vendor name: RayService a.s.
Address:
Assignment Type MA-L Huštěnovská 2022
Staré Město Czech Republic 686 03
CZ.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 10 March 2026
