YUYAMA MFG Co.,Ltd (70:B3:D5:B2:20:00 /36)

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:B2:20:00 /36

Vendor address1-4-30 MEISHINGUCHI,TOYONAKA OSAKA JP 561-0841

Block range70:B3:D5:B2:20:00– 70:B3:D5:B2:2F: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:B2:20:00 70:B3:D5:B2:27:FF 70:B3:D5:B2:2F:FF

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