Private
MAC address prefix 00:86:A0 is registered to Private in the IEEE OUI registry. Any device whose MAC address begins with 00:86:A0 has a network interface built by Private. 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 00:86:A0:00:00:00 to 00:86:A0:FF:FF:FF.
- OUI prefix
- 00:86:A0
- Hyphen form
- 00-86-A0
- MAC range
- 00:86:A0:00:00:00 – 00:86:A0:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Private
- 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 "Private"archived source →
- 2026-07-17Assigned to "Private"
Nearby in the registry
The prefixes assigned immediately before and after 00:86:A0:
- Cisco Meraki00:84:1E
- Shenzhen MiaoMing Intelligent Technology Co.,Ltd00:84:97
- LEXMARK INTERNATIONAL, INC.00:84:ED
- Amazon Technologies Inc.00:86:21
- LG Innotek00:86:67
- Palo Alto Networks00:86:9C
- Samsung Electronics Co.,Ltd00:87:01
- Cisco Systems, Inc00:87:31
- Cisco Systems, Inc00:87:64
- Apple, Inc.00:88:65
- NC&C00:88:BA
- Extreme Networks, Inc.00:89:C9
FAQ
- Which company owns MAC address prefix 00:86:A0?
- MAC address prefix 00:86:A0 is registered to Private in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:86:A0 has a network interface built by Private.
- What is the OUI 00:86:A0?
- 00:86:A0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Private. It covers every address from 00:86:A0:00:00:00 to 00:86:A0:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-86-A0.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 00:86:A0:00:00:00 that is 00:86:A0 — 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.