Which company owns MAC address prefix F4:15:32?

MAC address prefix F4:15:32 is registered to PETAiO (NanJing), Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:15:32 has a network interface built by PETAiO (NanJing), Inc..

What is the OUI F4:15:32?

F4:15:32 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to PETAiO (NanJing), Inc.. It covers every address from F4:15:32:00:00:00 to F4:15:32:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-15-32.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F4:15:32:00:00:00 that is F4:15:32 — 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 PETAiO (NanJing), Inc. located?

PETAiO (NanJing), Inc. is listed at 17 / F, block A, Weien building, No. 73 Huachuang Road, Yan Chuang Park, Jiang Bei New Area Nanjing Jiangsu CN 211800 in the IEEE OUI registry entry for F4:15:32. This is the address the organization registered with the IEEE, which may differ from its current operating address.

PETAiO (NanJing), Inc.

MAC address prefix F4:15:32 is registered to PETAiO (NanJing), Inc. in the IEEE OUI registry. Any device whose MAC address begins with F4:15:32 has a network interface built by PETAiO (NanJing), Inc.. 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 F4:15:32:00:00:00 to F4:15:32:FF:FF:FF.

OUI prefix: F4:15:32
Hyphen form: F4-15-32
MAC range: F4:15:32:00:00:00 – F4:15:32:FF:FF:FF
Addresses in block: 16,777,216
Organization: PETAiO (NanJing), Inc.
Address: 17 / F, block A, Weien building, No. 73 Huachuang Road, Yan Chuang Park, Jiang Bei New Area Nanjing Jiangsu CN 211800
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 (1)

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

2026-07-17Assigned to "PETAiO (NanJing), Inc."

Nearby in the registry

The prefixes assigned immediately before and after F4:15:32:

FAQ

Which company owns MAC address prefix F4:15:32?: MAC address prefix F4:15:32 is registered to PETAiO (NanJing), Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:15:32 has a network interface built by PETAiO (NanJing), Inc..
What is the OUI F4:15:32?: F4:15:32 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to PETAiO (NanJing), Inc.. It covers every address from F4:15:32:00:00:00 to F4:15:32:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-15-32.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F4:15:32:00:00:00 that is F4:15:32 — 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 PETAiO (NanJing), Inc. located?: PETAiO (NanJing), Inc. is listed at 17 / F, block A, Weien building, No. 73 Huachuang Road, Yan Chuang Park, Jiang Bei New Area Nanjing Jiangsu CN 211800 in the IEEE OUI registry entry for F4:15:32. This is the address the organization registered with the IEEE, which may differ from its current operating address.