Beijing Muniulinghang Technology Co., Ltd
MA-S
MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:19:80:00 /36
Vendor addressC9001 Kangjianbaosheng Square C, No.8 Heiquan Road, Haidian District, Beijing CN 100192
Country🇨🇳 China
Block range70:B3:D5:19:80:00– 70:B3:D5:19:8F: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