MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:6F:00:00:00 /24
Vendor address1F No.9 R&D Rd.II, Science-Based Industrial Park Hsin-Chu TW 300
Country🇹🇼 Taiwan
RegisteredSep 29, 2004
Block range00:12:6F:00:00:00– 00:12:6F: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
00:12:6E:00:00:00 /24
Seidel Elektronik GmbH Nfg.KG
Next
00:12:70:00:00:00 /24
NGES Denro Systems
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Rayson Technology Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,833 of 33,427 organizations by block count.
Other blocks registered to Rayson Technology Co., Ltd.