macadress

Gugaoo HK Limited

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixC4:C9:EC:00:00:00 /24
Vendor addressUnit 04, 7/F BRIGHT WAY TOWER Kowloon, Hongkong HK
Country🇭🇰  Hong Kong
RegisteredMar 5, 2014
Block rangeC4:C9:EC:00:00:00– C4:C9:EC: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

  1. Mar 5, 2014 – Jan 6, 2015 D&D GROUP sp. z o.o. name changedaddress changedcountry changed
  2. Jan 6, 2015 – present Gugaoo HK Limited

Example addresses in this block

C4:C9:EC:00:00:00 C4:C9:EC:7F:FF:FF C4:C9:EC:FF:FF:FF

Where this block sits

Gugaoo HK Limited holds 1 registered blocks in the IEEE registry, ranking #14,224 of 33,421 organizations by block count.