MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix38:05:25:40:00:00 /28
Vendor addressMatam Scientific Industries Center, Building 8.2 Mail box 15123 Haifa IL 3508409
Country🇮🇱 Israel
RegisteredApr 1, 2025
Block range38:05:25:40:00:00– 38:05:25:4F: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
38:05:25:30:00:00 /28
Shenzhen Meigao Electronic Equipment Co.,Ltd
Next
38:05:25:50:00:00 /28
Scorbit
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Annapurna labs holds 157 registered blocks in the IEEE registry, ranking #23 of 33,421 organizations by block count.
Other blocks registered to Annapurna labs
18:96:77:00:00:00 /24
MA-L
28:87:5F:00:00:00 /24
MA-L
30:8B:23:00:00:00 /24
MA-L
50:62:45:00:00:00 /24
MA-L
54:A3:56:00:00:00 /24
MA-L
F8:F2:95:00:00:00 /24
MA-L
00:69:67:00:00:00 /28
MA-M
00:6A:5E:90:00:00 /28
MA-M
00:6A:5E:A0:00:00 /28
MA-M
00:8D:F4:60:00:00 /28
MA-M
04:A1:6F:80:00:00 /28
MA-M
04:C9:8B:40:00:00 /28
MA-M