Which company owns MAC address prefix 88:62:5D?

MAC address prefix 88:62:5D is registered to BITNETWORKS CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:62:5D has a network interface built by BITNETWORKS CO.,LTD.

What is the OUI 88:62:5D?

88:62:5D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to BITNETWORKS CO.,LTD. It covers every address from 88:62:5D:00:00:00 to 88:62:5D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-62-5D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 88:62:5D:00:00:00 that is 88:62:5D — 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 BITNETWORKS CO.,LTD located?

BITNETWORKS CO.,LTD is listed at No.606, 83, Samwon-ro, Deogyang-gu, Goyang-si, Gyeonggi-do,Korea Goyang-si KR 10550 in the IEEE OUI registry entry for 88:62:5D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

BITNETWORKS CO.,LTD

MAC address prefix 88:62:5D is registered to BITNETWORKS CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 88:62:5D has a network interface built by BITNETWORKS 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 88:62:5D:00:00:00 to 88:62:5D:FF:FF:FF.

OUI prefix: 88:62:5D
Hyphen form: 88-62-5D
MAC range: 88:62:5D:00:00:00 – 88:62:5D:FF:FF:FF
Addresses in block: 16,777,216
Organization: BITNETWORKS CO.,LTD
Address: No.606, 83, Samwon-ro, Deogyang-gu, Goyang-si, Gyeonggi-do,Korea Goyang-si KR 10550
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.

2023-07-11Assigned to "BITNETWORKS CO.,LTD"
archived source →
2026-07-17Assigned to "BITNETWORKS CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after 88:62:5D:

FAQ

Which company owns MAC address prefix 88:62:5D?: MAC address prefix 88:62:5D is registered to BITNETWORKS CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:62:5D has a network interface built by BITNETWORKS CO.,LTD.
What is the OUI 88:62:5D?: 88:62:5D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to BITNETWORKS CO.,LTD. It covers every address from 88:62:5D:00:00:00 to 88:62:5D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-62-5D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 88:62:5D:00:00:00 that is 88:62:5D — 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 BITNETWORKS CO.,LTD located?: BITNETWORKS CO.,LTD is listed at No.606, 83, Samwon-ro, Deogyang-gu, Goyang-si, Gyeonggi-do,Korea Goyang-si KR 10550 in the IEEE OUI registry entry for 88:62:5D. This is the address the organization registered with the IEEE, which may differ from its current operating address.