MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix1C:04:60:00:00:00 /24
Vendor addressNo. 10, Jing 5th Rd., Nanzi Dist., Kaohsiung City 811643, Taiwan Nanzi Dist. Kaohsiung TW 811643
Country🇹🇼 Taiwan
RegisteredNov 7, 2025
Block range1C:04:60:00:00:00– 1C:04:60: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
NXP Semiconductors Taiwan Ltd. holds 18 registered blocks in the IEEE registry, ranking #189 of 33,498 organizations by block count.
Other blocks registered to NXP Semiconductors Taiwan Ltd.
0C:51:41:00:00:00 /24
MA-L
10:CB:33:00:00:00 /24
MA-L
10:ED:C8:00:00:00 /24
MA-L
14:4F:F0:00:00:00 /24
MA-L
24:1F:49:00:00:00 /24
MA-L
34:E1:D7:00:00:00 /24
MA-L
38:B9:AF:00:00:00 /24
MA-L
44:D4:65:00:00:00 /24
MA-L
5C:E6:74:00:00:00 /24
MA-L
68:58:92:00:00:00 /24
MA-L
68:5E:DF:00:00:00 /24
MA-L
68:86:E0:00:00:00 /24
MA-L