YUYAMA MFG Co.,Ltd

MA-S

MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.

Prefix70:B3:D5:CA:D0:00 /36

Vendor address3-3-1 TOYONAKASHI OSAKA JP 561-0841

RegisteredDec 20, 2020

Block range70:B3:D5:CA:D0:00– 70:B3:D5:CA:DF:FF

Address capacity4,096

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

70:B3:D5:CA:D0:00 70:B3:D5:CA:D7:FF 70:B3:D5:CA:DF:FF

Where this block sits

Previous 70:B3:D5:CA:C0:00 /36 CRDE Next 70:B3:D5:CA:E0:00 /36 THEMA

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

YUYAMA MFG Co.,Ltd holds 50 registered blocks in the IEEE registry, ranking #73 of 33,421 organizations by block count.

Other blocks registered to YUYAMA MFG Co.,Ltd

00:50:C2:39:B0:00 /36 IAB 00:50:C2:A2:E0:00 /36 IAB 00:50:C2:EE:C0:00 /36 IAB 40:D8:55:0F:F0:00 /36 IAB 70:B3:D5:15:00:00 /36 MA-S 70:B3:D5:19:60:00 /36 MA-S 70:B3:D5:1F:20:00 /36 MA-S 70:B3:D5:2D:E0:00 /36 MA-S 70:B3:D5:5C:80:00 /36 MA-S 70:B3:D5:74:20:00 /36 MA-S 70:B3:D5:85:F0:00 /36 MA-S 70:B3:D5:9C:70:00 /36 MA-S