MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB4:05:5D:00:00:00 /24
Vendor addressNo 224 Shanda Road Jinan Shandong CN 250013
Country🇨🇳 China
RegisteredJul 12, 2019
Block rangeB4:05:5D:00:00:00– B4:05:5D:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Jul 12, 2019 – Jun 19, 2024 Inspur Electronic Information Industry Co.,Ltd. name changed
- Jun 19, 2024 – present IEIT SYSTEMS Co., Ltd.
Example addresses in this block
Where this block sits
IEIT SYSTEMS Co., Ltd. holds 3 registered blocks in the IEEE registry, ranking #1,109 of 33,427 organizations by block count.
Other blocks registered to IEIT SYSTEMS Co., Ltd.