Zhejiang Dahua Technology Co., Ltd.
MAC address prefix 4C:11:BF is registered to Zhejiang Dahua Technology Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 4C:11:BF has a network interface built by Zhejiang Dahua Technology 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 4C:11:BF:00:00:00 to 4C:11:BF:FF:FF:FF.
- OUI prefix
- 4C:11:BF
- Hyphen form
- 4C-11-BF
- MAC range
- 4C:11:BF:00:00:00 – 4C:11:BF:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Zhejiang Dahua Technology Co., Ltd.
- Address
- NO.1199 Bin An Road,Binjiang District,HangZhou,P.R.China HangZhou ZheJiang CN 310053
- 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 Zhejiang Dahua Technology Co., Ltd.
Zhejiang Dahua Technology Co., Ltd. holds 27 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:
Assignment history (3)
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 "ZHEJIANG DAHUA TECHNOLOGY CO.,LTD."archived source →
- 2017-09-08Renamed from "ZHEJIANG DAHUA TECHNOLOGY CO.,LTD." to "Zhejiang Dahua Technology Co., Ltd."archived source →
- 2026-07-17Assigned to "Zhejiang Dahua Technology Co., Ltd."
Nearby in the registry
The prefixes assigned immediately before and after 4C:11:BF:
- Hon Hai Precision Ind. Co.,Ltd.4C:0F:6E
- Earda Technologies co Ltd4C:0F:C7
- TP-LINK TECHNOLOGIES CO.,LTD.4C:10:D5
- Mobiwire Mobiles (NingBo) Co., LTD4C:11:54
- Vision Information & Communications4C:11:59
- Espressif Inc.4C:11:AE
- Commscope4C:12:65
- VIETNAM POST AND TELECOMMUNICATION INDUSTRY TECHNOLOGY JOIN STOCK COMPANY4C:12:E8
- Emplus Technologies4C:13:65
- NOREGON SYSTEMS, INC4C:14:80
- TCL Technoly Electronics (Huizhou) Co., Ltd.4C:14:A3
- shenzhen sibituo Technology Co., Ltd4C:16:94
FAQ
- Which company owns MAC address prefix 4C:11:BF?
- MAC address prefix 4C:11:BF is registered to Zhejiang Dahua Technology Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 4C:11:BF has a network interface built by Zhejiang Dahua Technology Co., Ltd..
- What is the OUI 4C:11:BF?
- 4C:11:BF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zhejiang Dahua Technology Co., Ltd.. It covers every address from 4C:11:BF:00:00:00 to 4C:11:BF:FF:FF:FF, or 16,777,216 addresses in total. It is also written 4C-11-BF.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 4C:11:BF:00:00:00 that is 4C:11:BF — 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 Zhejiang Dahua Technology Co., Ltd. located?
- Zhejiang Dahua Technology Co., Ltd. is listed at NO.1199 Bin An Road,Binjiang District,HangZhou,P.R.China HangZhou ZheJiang CN 310053 in the IEEE OUI registry entry for 4C:11:BF. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does Zhejiang Dahua Technology Co., Ltd. own?
- Zhejiang Dahua Technology Co., Ltd. holds 27 OUI prefixes in the IEEE registry, of which 4C:11:BF is one. A device made by Zhejiang Dahua Technology Co., Ltd. could carry a MAC address from any of them.