Which company owns MAC address prefix 08:11:5E?

MAC address prefix 08:11:5E is registered to Bitel Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:11:5E has a network interface built by Bitel Co., Ltd..

What is the OUI 08:11:5E?

08:11:5E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Bitel Co., Ltd.. It covers every address from 08:11:5E:00:00:00 to 08:11:5E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-11-5E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 08:11:5E:00:00:00 that is 08:11:5E — 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 Bitel Co., Ltd. located?

Bitel Co., Ltd. is listed at 9F Yohyun B/D, 242-29, Nonhyun-dong Seoul Gangnam-gu KR 135830 in the IEEE OUI registry entry for 08:11:5E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Bitel Co., Ltd.

MAC address prefix 08:11:5E is registered to Bitel Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 08:11:5E has a network interface built by Bitel 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 08:11:5E:00:00:00 to 08:11:5E:FF:FF:FF.

OUI prefix: 08:11:5E
Hyphen form: 08-11-5E
MAC range: 08:11:5E:00:00:00 – 08:11:5E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Bitel Co., Ltd.
Address: 9F Yohyun B/D, 242-29, Nonhyun-dong Seoul Gangnam-gu KR 135830
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 "Bitel Co., Ltd."
archived source →
2026-07-17Assigned to "Bitel Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 08:11:5E:

FAQ

Which company owns MAC address prefix 08:11:5E?: MAC address prefix 08:11:5E is registered to Bitel Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:11:5E has a network interface built by Bitel Co., Ltd..
What is the OUI 08:11:5E?: 08:11:5E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Bitel Co., Ltd.. It covers every address from 08:11:5E:00:00:00 to 08:11:5E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-11-5E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 08:11:5E:00:00:00 that is 08:11:5E — 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 Bitel Co., Ltd. located?: Bitel Co., Ltd. is listed at 9F Yohyun B/D, 242-29, Nonhyun-dong Seoul Gangnam-gu KR 135830 in the IEEE OUI registry entry for 08:11:5E. This is the address the organization registered with the IEEE, which may differ from its current operating address.