macadress

Sichuan Tianyi Comheart Telecom Co.,LTD

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix9C:9C:40:00:00:00 /24
Vendor addressFL12, TowerB,Tianyi international Hotel,No.2 West Section One, Second Ring Road, Chengdu Sichuan CN 610000
Country🇨🇳  China
RegisteredJul 6, 2017
Block range9C:9C:40:00:00:00– 9C:9C:40:FF:FF:FF
Address capacity16,777,216
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

  1. Jul 6, 2017 – Feb 24, 2021 SICHUAN TIANYI COMHEART TELECOMCO., LTD name changed
  2. Feb 24, 2021 – Feb 25, 2021 SICHUAN TIANYI COMHEART TELECOMCO.,LTD name changed
  3. Feb 25, 2021 – present Sichuan Tianyi Comheart Telecom Co.,LTD

Dates show when a change became public in the IEEE registry. How we track ownership history →

Example addresses in this block

9C:9C:40:00:00:00 9C:9C:40:7F:FF:FF 9C:9C:40:FF:FF:FF

Where this block sits

Sichuan Tianyi Comheart Telecom Co.,LTD holds 91 registered blocks in the IEEE registry, ranking #38 of 33,498 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