MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.
MAC address prefix 6C:59:40 is registered to MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. in the IEEE OUI registry. Any device whose MAC address begins with 6C:59:40 has a network interface built by MERCURY COMMUNICATION 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 6C:59:40:00:00:00 to 6C:59:40:FF:FF:FF.
- OUI prefix
- 6C:59:40
- Hyphen form
- 6C-59-40
- MAC range
- 6C:59:40:00:00:00 – 6C:59:40:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.
- Address
- Mid-Fourth Flr.,Building 28,Cui Xi Fourth Road,Ke Yuan West,Nanshan Shenzhen Guangdong CN 518057
- 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 MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.
MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. holds 8 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 "SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD."archived source →
- 2018-12-21Renamed from "SHENZHEN MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD." to "MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD."archived source →
- 2026-07-17Assigned to "MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD."
Nearby in the registry
The prefixes assigned immediately before and after 6C:59:40:
- Amazon Technologies Inc.6C:55:B1
- Vantiva USA LLC6C:55:E8
- eero inc.6C:55:F6
- BLU Products Inc6C:56:40
- Amazon Technologies Inc.6C:56:97
- Aclima, Inc.6C:57:79
- Shanghai Tricheer Technology Co.,Ltd.6C:59:76
- Shenzhen Haitianxiong Electronic Co., Ltd.6C:5A:34
- TP-Link Systems Inc6C:5A:B0
- TCL Technoly Electronics (Huizhou) Co., Ltd.6C:5A:B5
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP.,LTD6C:5C:14
- IEEE Registration Authority6C:5C:3D
FAQ
- Which company owns MAC address prefix 6C:59:40?
- MAC address prefix 6C:59:40 is registered to MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:59:40 has a network interface built by MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD..
- What is the OUI 6C:59:40?
- 6C:59:40 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD.. It covers every address from 6C:59:40:00:00:00 to 6C:59:40:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-59-40.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 6C:59:40:00:00:00 that is 6C:59:40 — 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 MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. located?
- MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. is listed at Mid-Fourth Flr.,Building 28,Cui Xi Fourth Road,Ke Yuan West,Nanshan Shenzhen Guangdong CN 518057 in the IEEE OUI registry entry for 6C:59:40. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. own?
- MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. holds 8 OUI prefixes in the IEEE registry, of which 6C:59:40 is one. A device made by MERCURY COMMUNICATION TECHNOLOGIES CO.,LTD. could carry a MAC address from any of them.