OUI Lookup
643ab1
Sichuan Tianyi Comheart Telecom Co.,LTD
Manufacturer Information
- OUI Prefix
- 643ab1
- Manufacturer
- Sichuan Tianyi Comheart Telecom Co.,LTD
- Address
- FL12,TowerB,Tianyi international Hotel,No.2 West Section One, Second Ring Road, Chengdu, Sichuan Chengdu Sichuan CN 610000
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 88
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 643AB1
The OUI prefix 643AB1 is assigned to Sichuan Tianyi Comheart Telecom Co.,LTD, based in FL12,TowerB,Tianyi international Hotel,No.2 West Section One, Second Ring Road, Chengdu, Sichuan Chengdu Sichuan CN 610000 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Sichuan Tianyi Comheart Telecom Co.,LTD.
Other prefixes from Sichuan Tianyi Comheart Telecom Co.,LTD
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