MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
VS
IEEE Registrant 1 Prefix
Valthor, s.r.o.
Valthor, s.r.o. manages 1 unique MAC address prefix. These prefixes have a total block size of 1 million addresses.
The allocation includes the following types: MA-M(MAC Address Block Medium, 1,048,576 addresses each).
The company registered its MAC address allocation on 30 October 2026. These allocations support network identification and communication globally.
Unique prefixes 1
Block Size 1048575 (1.04 M)
First registration 30 October 2026
Last updated —
Entity Details
Unique prefixes 1
Block Size 1048575 (1.04 M)
First registration 30 October 2026
Types
MA-M: Block Type
Mac Address Block Medium. Number of address 2^20 (~1 Million)Registered MAC Prefixes
All Organizationally Unique Identifiers and MAC ranges assigned to this vendor
| MAC Prefix | Type | Registration Date |
|---|---|---|
| B8:F4:53:7 | MA-M | 2026-10-30 |