macadress

Zyxel Communications Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixEC:43:F6:00:00:00 /24
Vendor addressNo. 6 Innovation Road II, Science Park Hsichu Taiwan TW 300
Country🇹🇼  Taiwan
RegisteredNov 17, 2012
Block rangeEC:43:F6:00:00:00– EC:43:F6: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. Nov 17, 2012 – Mar 29, 2016 ZyXEL Communications Corporation name changed
  2. Mar 29, 2016 – Oct 4, 2016 5420 name changedaddress changed
  3. Oct 4, 2016 – present Zyxel Communications Corporation

Dates show when a change became public in the IEEE registry. How we track ownership history →

Example addresses in this block

EC:43:F6:00:00:00 EC:43:F6:7F:FF:FF EC:43:F6:FF:FF:FF

Where this block sits

Zyxel Communications Corporation holds 72 registered blocks in the IEEE registry, ranking #53 of 33,498 organizations by block count.

Other blocks registered to Zyxel Communications Corporation

00:13:49:00:00:00 /24 MA-L 00:19:CB:00:00:00 /24 MA-L 00:23:F8:00:00:00 /24 MA-L 00:A0:C5:00:00:00 /24 MA-L 04:23:36:00:00:00 /24 MA-L 04:BF:6D:00:00:00 /24 MA-L 08:26:97:00:00:00 /24 MA-L 10:71:B3:00:00:00 /24 MA-L 10:7B:EF:00:00:00 /24 MA-L 10:C5:FA:00:00:00 /24 MA-L 14:33:75:00:00:00 /24 MA-L 14:36:0E:00:00:00 /24 MA-L