NXP Semiconductor (Tianjin) LTD.
MAC address prefix 40:EE:BE is registered to NXP Semiconductor (Tianjin) LTD. in the IEEE OUI registry. Any device whose MAC address begins with 40:EE:BE has a network interface built by NXP Semiconductor (Tianjin) 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 40:EE:BE:00:00:00 to 40:EE:BE:FF:FF:FF.
- OUI prefix
- 40:EE:BE
- Hyphen form
- 40-EE-BE
- MAC range
- 40:EE:BE:00:00:00 – 40:EE:BE:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- NXP Semiconductor (Tianjin) LTD.
- Address
- No.15 Xinghua Avenue, Xiqing Economic Development Area Tianjin CN 300385
- 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 NXP Semiconductor (Tianjin) LTD.
NXP Semiconductor (Tianjin) LTD. holds 23 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.
- 2024-02-15Assigned to "NXP Semiconductor (Tianjin) LTD."archived source →
- 2026-07-17Assigned to "NXP Semiconductor (Tianjin) LTD."
Nearby in the registry
The prefixes assigned immediately before and after 40:EE:BE:
- TP-Link Systems Inc40:ED:00
- Zscaler40:ED:7B
- IEEE Registration Authority40:ED:98
- Apple, Inc.40:ED:CF
- Zioncom Electronics (Shenzhen) Ltd.40:EE:15
- HUAWEI TECHNOLOGIES CO.,LTD40:EE:6D
- HUAWEI TECHNOLOGIES CO.,LTD40:EE:DD
- Fihonest communication co.,Ltd40:EF:4C
- Liteon Technology Corporation40:F0:2F
- Integrated Device Technology (Malaysia) Sdn. Bhd.40:F0:4E
- Cisco Systems, Inc40:F0:78
- ISE Europe SPRL40:F1:4C
FAQ
- Which company owns MAC address prefix 40:EE:BE?
- MAC address prefix 40:EE:BE is registered to NXP Semiconductor (Tianjin) LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 40:EE:BE has a network interface built by NXP Semiconductor (Tianjin) LTD..
- What is the OUI 40:EE:BE?
- 40:EE:BE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NXP Semiconductor (Tianjin) LTD.. It covers every address from 40:EE:BE:00:00:00 to 40:EE:BE:FF:FF:FF, or 16,777,216 addresses in total. It is also written 40-EE-BE.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 40:EE:BE:00:00:00 that is 40:EE:BE — 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 NXP Semiconductor (Tianjin) LTD. located?
- NXP Semiconductor (Tianjin) LTD. is listed at No.15 Xinghua Avenue, Xiqing Economic Development Area Tianjin CN 300385 in the IEEE OUI registry entry for 40:EE:BE. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does NXP Semiconductor (Tianjin) LTD. own?
- NXP Semiconductor (Tianjin) LTD. holds 23 OUI prefixes in the IEEE registry, of which 40:EE:BE is one. A device made by NXP Semiconductor (Tianjin) LTD. could carry a MAC address from any of them.