WNC Corporation

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

PrefixD8:5B:27:00:00:00 /24

Vendor addressNo.20,Park Avenue II,Hsinchu Science Park Hsin-Chu R.O.C. TW 308

RegisteredJan 21, 2026

Block rangeD8:5B:27:00:00:00– D8:5B:27: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

D8:5B:27:00:00:00 D8:5B:27:7F:FF:FF D8:5B:27:FF:FF:FF

Where this block sits

Previous D8:5B:22:00:00:00 /24 Shenzhen Hohunet Technology Co., Ltd Next D8:5B:2A:00:00:00 /24 Samsung Electronics Co.,Ltd

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

WNC Corporation holds 51 registered blocks in the IEEE registry, ranking #71 of 33,427 organizations by block count.

Other blocks registered to WNC Corporation

00:0B:6B:00:00:00 /24 MA-L 00:1B:B1:00:00:00 /24 MA-L 04:B3:C9:00:00:00 /24 MA-L 10:E8:A7:00:00:00 /24 MA-L 1C:D6:BE:00:00:00 /24 MA-L 20:58:43:00:00:00 /24 MA-L 24:41:FE:00:00:00 /24 MA-L 28:04:7A:00:00:00 /24 MA-L 28:24:FF:00:00:00 /24 MA-L 28:2E:89:00:00:00 /24 MA-L 2C:9F:FB:00:00:00 /24 MA-L 2C:DC:AD:00:00:00 /24 MA-L