Which company owns MAC address prefix CC:A2:19?

MAC address prefix CC:A2:19 is registered to SHENZHEN ALONG INVESTMENT CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:A2:19 has a network interface built by SHENZHEN ALONG INVESTMENT CO.,LTD.

What is the OUI CC:A2:19?

CC:A2:19 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHENZHEN ALONG INVESTMENT CO.,LTD. It covers every address from CC:A2:19:00:00:00 to CC:A2:19:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-A2-19.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:A2:19:00:00:00 that is CC:A2:19 — 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 ALONG INVESTMENT CO.,LTD located?

SHENZHEN ALONG INVESTMENT CO.,LTD is listed at Room 1301,13F,Zhenye international Business Center,No.3101-90,Qianhai Road,Nanshan District Shenzhen Guangdong Province CN 518052 in the IEEE OUI registry entry for CC:A2:19. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SHENZHEN ALONG INVESTMENT CO.,LTD

MAC address prefix CC:A2:19 is registered to SHENZHEN ALONG INVESTMENT CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with CC:A2:19 has a network interface built by SHENZHEN ALONG INVESTMENT 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:A2:19:00:00:00 to CC:A2:19:FF:FF:FF.

OUI prefix: CC:A2:19
Hyphen form: CC-A2-19
MAC range: CC:A2:19:00:00:00 – CC:A2:19:FF:FF:FF
Addresses in block: 16,777,216
Organization: SHENZHEN ALONG INVESTMENT CO.,LTD
Address: Room 1301,13F,Zhenye international Business Center,No.3101-90,Qianhai Road,Nanshan District Shenzhen Guangdong Province CN 518052
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.

2017-09-08Assigned to "SHENZHEN ALONG INVESTMENT CO.,LTD"
archived source →
2026-07-17Assigned to "SHENZHEN ALONG INVESTMENT CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after CC:A2:19:

FAQ

Which company owns MAC address prefix CC:A2:19?: MAC address prefix CC:A2:19 is registered to SHENZHEN ALONG INVESTMENT CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:A2:19 has a network interface built by SHENZHEN ALONG INVESTMENT CO.,LTD.
What is the OUI CC:A2:19?: CC:A2:19 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHENZHEN ALONG INVESTMENT CO.,LTD. It covers every address from CC:A2:19:00:00:00 to CC:A2:19:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-A2-19.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:A2:19:00:00:00 that is CC:A2:19 — 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 ALONG INVESTMENT CO.,LTD located?: SHENZHEN ALONG INVESTMENT CO.,LTD is listed at Room 1301,13F,Zhenye international Business Center,No.3101-90,Qianhai Road,Nanshan District Shenzhen Guangdong Province CN 518052 in the IEEE OUI registry entry for CC:A2:19. This is the address the organization registered with the IEEE, which may differ from its current operating address.