MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1F:73:00:00:00 /24
Vendor address23F, No. 29-5, Sec. 2, Jhongjheng E. Road, Taipei County TW 251
Country🇹🇼 Taiwan
RegisteredJan 7, 2008
Block range00:1F:73:00:00:00– 00:1F: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
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00:1F:72:00:00:00 /24
QingDao Hiphone Technology Co,.Ltd
Next
00:1F:74:00:00:00 /24
Eigen Development
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Teraview Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #29,768 of 33,427 organizations by block count.