Sichuan Tianyi Comheart Telecom Co.,LTD

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.

Prefix78:C2:C0:60:00:00 /28

Vendor addressFL12,TowerB,Tianyi international Hotel,No.2 West Section One, Second Ring Road, Chengdu, Sichuan Chengdu Sichuan CN 610000

Country🇨🇳 China

RegisteredOct 16, 2015

Block range78:C2:C0:60:00:00– 78:C2:C0:6F: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 16, 2015 – Feb 25, 2021 SICHUAN TIANYI COMHEART TELECOMCO.,LTD name changed
Feb 25, 2021 – present Sichuan Tianyi Comheart Telecom Co.,LTD

Example addresses in this block

78:C2:C0:60:00:00 78:C2:C0:67:FF:FF 78:C2:C0:6F:FF:FF

Where this block sits

Previous 78:C2:C0:50:00:00 /28 ShenZhen TuLing Robot CO.,LTD Next 78:C2:C0:70:00:00 /28 Guangzhou Hongcai Stage Equipment co.,ltd

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

Sichuan Tianyi Comheart Telecom Co.,LTD holds 89 registered blocks in the IEEE registry, ranking #40 of 33,427 organizations by block count.

Other blocks registered to Sichuan Tianyi Comheart Telecom Co.,LTD

00:4C:E5:00:00:00 /24 MA-L 00:E5:E4:00:00:00 /24 MA-L 04:43:FD:00:00:00 /24 MA-L 04:6B:25:00:00:00 /24 MA-L 08:01:0F:00:00:00 /24 MA-L 10:12:B4:00:00:00 /24 MA-L 14:69:A2:00:00:00 /24 MA-L 18:52:07:00:00:00 /24 MA-L 18:75:32:00:00:00 /24 MA-L 1C:0E:D3:00:00:00 /24 MA-L 1C:FF:59:00:00:00 /24 MA-L 24:06:F2:00:00:00 /24 MA-L