macadress

Arcadyan Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix1C:C6:3C:00:00:00 /24
Vendor address4F, No. 9, Park Avenue II , Hsinchu TW 300
Country🇹🇼  Taiwan
RegisteredDec 7, 2011
Block range1C:C6:3C:00:00:00– 1C:C6:3C: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. Dec 7, 2011 – Dec 15, 2011 Arcadyan Technology Corp. name changed
  2. Dec 15, 2011 – Mar 10, 2026 Arcadyan Technology Corporation name changed
  3. Mar 10, 2026 – present Arcadyan Corporation

Example addresses in this block

1C:C6:3C:00:00:00 1C:C6:3C:7F:FF:FF 1C:C6:3C:FF:FF:FF

Where this block sits

Arcadyan Corporation holds 90 registered blocks in the IEEE registry, ranking #38 of 33,427 organizations by block count.

Other blocks registered to Arcadyan Corporation

00:12:BF:00:00:00 /24 MA-L 00:1A:2A:00:00:00 /24 MA-L 00:1D:19:00:00:00 /24 MA-L 00:23:08:00:00:00 /24 MA-L 00:26:4D:00:00:00 /24 MA-L 04:09:86:00:00:00 /24 MA-L 04:70:56:00:00:00 /24 MA-L 04:A2:22:00:00:00 /24 MA-L 08:27:A8:00:00:00 /24 MA-L 0C:8E:29:00:00:00 /24 MA-L 18:58:80:00:00:00 /24 MA-L 18:60:41:00:00:00 /24 MA-L