MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixBC:31:98:20:00:00 /28
Vendor addressDekabrkih sobitiy, 100 Irkutsk RU 664007
Country🇷🇺 Russia
RegisteredApr 6, 2023
Block rangeBC:31:98:20:00:00– BC:31:98:2F:FF:FF
Address capacity1,048,576
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
Where this block sits
Previous
BC:31:98:10:00:00 /28
swiss-sonic Ultraschall AG
Next
BC:31:98:30:00:00 /28
Shenzhen Qichang Intelligent Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
JSC Megapolis-telecom region holds 2 registered blocks in the IEEE registry, ranking #2,334 of 33,427 organizations by block count.
Other blocks registered to JSC Megapolis-telecom region