National Company of Telecommunication and Information Security

MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

PrefixC4:A5:59:40:00:00 /28

Vendor addressOffice 6 - Takween Building First FloorAlyasmin Dist. King Abdulaziz Rd. Riyadh Riyadh SA 395358

RegisteredOct 27, 2022

Block rangeC4:A5:59:40:00:00– C4:A5:59:4F: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 →

Ownership timeline

Oct 27, 2022 – Nov 4, 2023 Private name changedaddress changedcountry changed
Nov 4, 2023 – present National Company of Telecommunication and Information Security

Example addresses in this block

C4:A5:59:40:00:00 C4:A5:59:47:FF:FF C4:A5:59:4F:FF:FF

Where this block sits

Previous C4:A5:59:30:00:00 /28 X-speed lnformation Technology Co.,Ltd Next C4:A5:59:50:00:00 /28 Moultrie Mobile

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

National Company of Telecommunication and Information Security holds 1 registered blocks in the IEEE registry, ranking #20,691 of 33,421 organizations by block count.