MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:15:04:00:00:00 /24
Vendor address164-57, Yeonghwa-dong, Jangan-gu Suwon Gyeonggi-do KR 440-818
Country🇰🇷 South Korea
RegisteredJun 25, 2005
Block range00:15:04:00:00:00– 00:15:04: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 →
Example addresses in this block
Where this block sits
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00:15:03:00:00:00 /24
PROFIcomms s.r.o.
Next
00:15:05:00:00:00 /24
Actiontec Electronics, Inc
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
GAME PLUS CO., LTD. holds 1 registered blocks in the IEEE registry, ranking #13,321 of 33,421 organizations by block count.