MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:74:00:00:00 /24
Vendor address1F , No. 21, Yanfa 2nd Rd., SBIP Hsinchu City Hsinchu TW 300
Country🇹🇼 Taiwan
RegisteredAug 27, 2006
Block range00:19:74:00:00:00– 00:19:74: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
- Aug 27, 2006 – Oct 30, 2015 AboCom Systems, Inc. name changedaddress changed
- Oct 30, 2015 – present 16063
Example addresses in this block
Where this block sits
Previous
00:19:73:00:00:00 /24
Zeugma Systems
Next
00:19:75:00:00:00 /24
Beijing Huisen networks technology Inc
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
16063 holds 1 registered blocks in the IEEE registry, ranking #3,509 of 33,421 organizations by block count.