MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix38:72:C0:00:00:00 /24
Vendor address3F-1, 10 Lane 609, Chongxin Road, Section 5, New Taipei City, Taiwan TW 24159
Country🇹🇼 Taiwan
RegisteredNov 18, 2010
Block range38:72:C0:00:00:00– 38:72:C0: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
- Nov 18, 2010 – Nov 4, 2015 COMTREND name changedaddress changed
- Nov 4, 2015 – present Comtrend Corporation
Example addresses in this block
Where this block sits
Comtrend Corporation holds 10 registered blocks in the IEEE registry, ranking #300 of 33,421 organizations by block count.
Other blocks registered to Comtrend Corporation