What this means
The IEEE assigned the MA-L block 000465 to i.s.t isdn-support technik GmbH. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 00:04:65, it is i.s.t isdn-support technik GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 000465?
000465 is registered to i.s.t isdn-support technik GmbH in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. i.s.t isdn-support technik GmbH's block covers 16,777,216 addresses.
What devices use 000465?
Any network device with a MAC address starting 00:04:65 was manufactured by or for i.s.t isdn-support technik GmbH.