Which company owns MAC address prefix CC:B3:AB?

MAC address prefix CC:B3:AB is registered to shenzhen Biocare Bio-Medical Equipment Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:B3:AB has a network interface built by shenzhen Biocare Bio-Medical Equipment Co.,Ltd..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:B3:AB:00:00:00 that is CC:B3:AB — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is shenzhen Biocare Bio-Medical Equipment Co.,Ltd. located?

shenzhen Biocare Bio-Medical Equipment Co.,Ltd. is listed at #A735, 7/F, Block A, Shenzhen Mingyou Industrial Products Exhibition & Procurement Center, Baoyuan Road, Xixiang Sub-district, Bao'an District, 518102 Shenzhen, P.R. China Shenzhen CN 518000 in the IEEE OUI registry entry for CC:B3:AB. This is the address the organization registered with the IEEE, which may differ from its current operating address.

shenzhen Biocare Bio-Medical Equipment Co.,Ltd.

MAC address prefix CC:B3:AB is registered to shenzhen Biocare Bio-Medical Equipment Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with CC:B3:AB has a network interface built by shenzhen Biocare Bio-Medical Equipment Co.,Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from CC:B3:AB:00:00:00 to CC:B3:AB:FF:FF:FF.

OUI prefix: CC:B3:AB
Hyphen form: CC-B3-AB
MAC range: CC:B3:AB:00:00:00 – CC:B3:AB:FF:FF:FF
Addresses in block: 16,777,216
Organization: shenzhen Biocare Bio-Medical Equipment Co.,Ltd.
Address: #A735, 7/F, Block A, Shenzhen Mingyou Industrial Products Exhibition & Procurement Center, Baoyuan Road, Xixiang Sub-district, Bao'an District, 518102 Shenzhen, P.R. China Shenzhen CN 518000
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "shenzhen Biocare Bio-Medical Equipment Co.,Ltd."
archived source →
2026-07-17Assigned to "shenzhen Biocare Bio-Medical Equipment Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after CC:B3:AB:

FAQ

Which company owns MAC address prefix CC:B3:AB?: MAC address prefix CC:B3:AB is registered to shenzhen Biocare Bio-Medical Equipment Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:B3:AB has a network interface built by shenzhen Biocare Bio-Medical Equipment Co.,Ltd..
What is the OUI CC:B3:AB?: CC:B3:AB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to shenzhen Biocare Bio-Medical Equipment Co.,Ltd.. It covers every address from CC:B3:AB:00:00:00 to CC:B3:AB:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-B3-AB.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:B3:AB:00:00:00 that is CC:B3:AB — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is shenzhen Biocare Bio-Medical Equipment Co.,Ltd. located?: shenzhen Biocare Bio-Medical Equipment Co.,Ltd. is listed at #A735, 7/F, Block A, Shenzhen Mingyou Industrial Products Exhibition & Procurement Center, Baoyuan Road, Xixiang Sub-district, Bao'an District, 518102 Shenzhen, P.R. China Shenzhen CN 518000 in the IEEE OUI registry entry for CC:B3:AB. This is the address the organization registered with the IEEE, which may differ from its current operating address.