Which company owns MAC address prefix 98:77:D5?

MAC address prefix 98:77:D5 is registered to WiZ in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:77:D5 has a network interface built by WiZ.

What is the OUI 98:77:D5?

98:77:D5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WiZ. It covers every address from 98:77:D5:00:00:00 to 98:77:D5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-77-D5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 98:77:D5:00:00:00 that is 98:77:D5 — 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 WiZ located?

WiZ is listed at Unit 1203-5, 12/F, Tower 1, Enterprise Square, 9 Sheung Yuet Road Kowloon Bay Hong Kong HK 0000 in the IEEE OUI registry entry for 98:77:D5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does WiZ own?

WiZ holds 5 OUI prefixes in the IEEE registry, of which 98:77:D5 is one. A device made by WiZ could carry a MAC address from any of them.

WiZ

MAC address prefix 98:77:D5 is registered to WiZ in the IEEE OUI registry. Any device whose MAC address begins with 98:77:D5 has a network interface built by WiZ. 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 98:77:D5:00:00:00 to 98:77:D5:FF:FF:FF.

OUI prefix: 98:77:D5
Hyphen form: 98-77-D5
MAC range: 98:77:D5:00:00:00 – 98:77:D5:FF:FF:FF
Addresses in block: 16,777,216
Organization: WiZ
Address: Unit 1203-5, 12/F, Tower 1, Enterprise Square, 9 Sheung Yuet Road Kowloon Bay Hong Kong HK 0000
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.

Other prefixes from WiZ

WiZ holds 5 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

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

2025-02-27Assigned to "WiZ"
archived source →
2026-07-17Assigned to "WiZ"

Nearby in the registry

The prefixes assigned immediately before and after 98:77:D5:

FAQ

Which company owns MAC address prefix 98:77:D5?: MAC address prefix 98:77:D5 is registered to WiZ in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:77:D5 has a network interface built by WiZ.
What is the OUI 98:77:D5?: 98:77:D5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WiZ. It covers every address from 98:77:D5:00:00:00 to 98:77:D5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-77-D5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 98:77:D5:00:00:00 that is 98:77:D5 — 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 WiZ located?: WiZ is listed at Unit 1203-5, 12/F, Tower 1, Enterprise Square, 9 Sheung Yuet Road Kowloon Bay Hong Kong HK 0000 in the IEEE OUI registry entry for 98:77:D5. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does WiZ own?: WiZ holds 5 OUI prefixes in the IEEE registry, of which 98:77:D5 is one. A device made by WiZ could carry a MAC address from any of them.