Fiberhome Telecommunication Technologies Co.,LTD
MAC address prefix 04:C1:B9 is registered to Fiberhome Telecommunication Technologies Co.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 04:C1:B9 has a network interface built by Fiberhome Telecommunication Technologies 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 04:C1:B9:00:00:00 to 04:C1:B9:FF:FF:FF.
- OUI prefix
- 04:C1:B9
- Hyphen form
- 04-C1-B9
- MAC range
- 04:C1:B9:00:00:00 – 04:C1:B9:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Fiberhome Telecommunication Technologies Co.,LTD
- Address
- No.5 DongXin Road Wuhan City Hubei Province CN 430074
- 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 Fiberhome Telecommunication Technologies Co.,LTD
Fiberhome Telecommunication Technologies Co.,LTD holds 218 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.
- 2016-07-29Assigned to "Fiberhome Telecommunication Technologies Co.,LTD"archived source →
- 2026-07-17Assigned to "Fiberhome Telecommunication Technologies Co.,LTD"
Nearby in the registry
The prefixes assigned immediately before and after 04:C1:B9:
- ISB Corporation04:BF:A8
- Apple, Inc.04:BF:D5
- Tigo Energy04:C0:5B
- HUAWEI TECHNOLOGIES CO.,LTD04:C0:6F
- Tellabs Inc.04:C0:9C
- Clover Network, Inc.04:C1:03
- Huawei Device Co., Ltd.04:C1:D8
- HTC Corporation04:C2:3E
- Nokia04:C2:41
- Aura Home, Inc.04:C2:9B
- IEEE Registration Authority04:C3:E6
- Murata Manufacturing Co., Ltd.04:C4:61
FAQ
- Which company owns MAC address prefix 04:C1:B9?
- MAC address prefix 04:C1:B9 is registered to Fiberhome Telecommunication Technologies Co.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:C1:B9 has a network interface built by Fiberhome Telecommunication Technologies Co.,LTD.
- What is the OUI 04:C1:B9?
- 04:C1:B9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Fiberhome Telecommunication Technologies Co.,LTD. It covers every address from 04:C1:B9:00:00:00 to 04:C1:B9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-C1-B9.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 04:C1:B9:00:00:00 that is 04:C1:B9 — 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 Fiberhome Telecommunication Technologies Co.,LTD located?
- Fiberhome Telecommunication Technologies Co.,LTD is listed at No.5 DongXin Road Wuhan City Hubei Province CN 430074 in the IEEE OUI registry entry for 04:C1:B9. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does Fiberhome Telecommunication Technologies Co.,LTD own?
- Fiberhome Telecommunication Technologies Co.,LTD holds 218 OUI prefixes in the IEEE registry, of which 04:C1:B9 is one. A device made by Fiberhome Telecommunication Technologies Co.,LTD could carry a MAC address from any of them.