Which company owns MAC address prefix CC:D9:E9?

MAC address prefix CC:D9:E9 is registered to SCR Engineers Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:D9:E9 has a network interface built by SCR Engineers Ltd..

What is the OUI CC:D9:E9?

CC:D9:E9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SCR Engineers Ltd.. It covers every address from CC:D9:E9:00:00:00 to CC:D9:E9:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-D9-E9.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:D9:E9:00:00:00 that is CC:D9:E9 — 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 SCR Engineers Ltd. located?

SCR Engineers Ltd. is listed at 6 Haomanut St. Netanya IL 42504 in the IEEE OUI registry entry for CC:D9:E9. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SCR Engineers Ltd.

MAC address prefix CC:D9:E9 is registered to SCR Engineers Ltd. in the IEEE OUI registry. Any device whose MAC address begins with CC:D9:E9 has a network interface built by SCR Engineers 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:D9:E9:00:00:00 to CC:D9:E9:FF:FF:FF.

OUI prefix: CC:D9:E9
Hyphen form: CC-D9-E9
MAC range: CC:D9:E9:00:00:00 – CC:D9:E9:FF:FF:FF
Addresses in block: 16,777,216
Organization: SCR Engineers Ltd.
Address: 6 Haomanut St. Netanya IL 42504
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 "SCR Engineers Ltd."
archived source →
2026-07-17Assigned to "SCR Engineers Ltd."

Nearby in the registry

The prefixes assigned immediately before and after CC:D9:E9:

FAQ

Which company owns MAC address prefix CC:D9:E9?: MAC address prefix CC:D9:E9 is registered to SCR Engineers Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:D9:E9 has a network interface built by SCR Engineers Ltd..
What is the OUI CC:D9:E9?: CC:D9:E9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SCR Engineers Ltd.. It covers every address from CC:D9:E9:00:00:00 to CC:D9:E9:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-D9-E9.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:D9:E9:00:00:00 that is CC:D9:E9 — 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 SCR Engineers Ltd. located?: SCR Engineers Ltd. is listed at 6 Haomanut St. Netanya IL 42504 in the IEEE OUI registry entry for CC:D9:E9. This is the address the organization registered with the IEEE, which may differ from its current operating address.