MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixC0:D3:91:B0:00:00 /28
Vendor addressNo.1027, 24th Main, 11th Cross, Bangalore Karnataka IN 560102
Country🇮🇳 India
RegisteredMay 22, 2016
Block rangeC0:D3:91:B0:00:00– C0:D3:91:BF: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 →
Ownership timeline
- May 22, 2016 – May 15, 2022 Private name changedaddress changedcountry changed
- May 15, 2022 – present Celliber Technologies Pvt Limited
Example addresses in this block
Where this block sits
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C0:D3:91:A0:00:00 /28
Alpha Audiotronics, Inc.
Next
C0:D3:91:C0:00:00 /28
Zhinengguo technology company limited
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Celliber Technologies Pvt Limited holds 1 registered blocks in the IEEE registry, ranking #8,004 of 33,427 organizations by block count.