MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:25:73:00:00:00 /24
Vendor address100, Jurong East Street 21, ST Electronics Jurong East Bldg SG 609602
Country🇸🇬 Singapore
RegisteredMar 8, 2009
Block range00:25:73:00:00:00– 00:25:73: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
Previous
00:25:72:00:00:00 /24
Nemo-Q International AB
Next
00:25:74:00:00:00 /24
KUNIMI MEDIA DEVICE Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ST Electronics (Info-Security) Pte Ltd holds 1 registered blocks in the IEEE registry, ranking #28,274 of 33,427 organizations by block count.