TP-LINK TECHNOLOGIES CO.,LTD.
MAC address prefix 1C:44:19 is registered to TP-LINK TECHNOLOGIES CO.,LTD. in the IEEE OUI registry. Any device whose MAC address begins with 1C:44:19 has a network interface built by TP-LINK 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 1C:44:19:00:00:00 to 1C:44:19:FF:FF:FF.
- OUI prefix
- 1C:44:19
- Hyphen form
- 1C-44-19
- MAC range
- 1C:44:19:00:00:00 – 1C:44:19:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- TP-LINK TECHNOLOGIES CO.,LTD.
- Address
- Building 24(floors 1,3,4,5)and 28(floors 1-4)Central Science and Technology Park,Shennan Road,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 TP-LINK TECHNOLOGIES CO.,LTD.
TP-LINK TECHNOLOGIES CO.,LTD. holds 174 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 "TP-LINK TECHNOLOGIES CO.,LTD."archived source →
- 2026-07-17Assigned to "TP-LINK TECHNOLOGIES CO.,LTD."
Nearby in the registry
The prefixes assigned immediately before and after 1C:44:19:
- Universal Electronics, Inc.1C:41:90
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP.,LTD1C:42:7D
- Taicang T&W Electronics1C:42:B8
- Huawei Device Co., Ltd.1C:42:C2
- HUAWEI TECHNOLOGIES CO.,LTD1C:43:63
- JAPAN CIRCUIT CO.,LTD1C:43:EC
- Sieb & Meyer AG1C:44:55
- Nintendo Co.,Ltd1C:45:86
- Texas Instruments1C:45:93
- Huizhou City Sunsin lntelligent Technology Co.,Ltd1C:45:C2
- SKY UK LIMITED1C:46:D1
- Huawei Device Co., Ltd.1C:47:2F
FAQ
- Which company owns MAC address prefix 1C:44:19?
- MAC address prefix 1C:44:19 is registered to TP-LINK TECHNOLOGIES CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 1C:44:19 has a network interface built by TP-LINK TECHNOLOGIES CO.,LTD..
- What is the OUI 1C:44:19?
- 1C:44:19 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TP-LINK TECHNOLOGIES CO.,LTD.. It covers every address from 1C:44:19:00:00:00 to 1C:44:19:FF:FF:FF, or 16,777,216 addresses in total. It is also written 1C-44-19.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 1C:44:19:00:00:00 that is 1C:44:19 — 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 TP-LINK TECHNOLOGIES CO.,LTD. located?
- TP-LINK TECHNOLOGIES CO.,LTD. is listed at Building 24(floors 1,3,4,5)and 28(floors 1-4)Central Science and Technology Park,Shennan Road,Nanshan Shenzhen Guangdong CN 518057 in the IEEE OUI registry entry for 1C:44:19. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does TP-LINK TECHNOLOGIES CO.,LTD. own?
- TP-LINK TECHNOLOGIES CO.,LTD. holds 174 OUI prefixes in the IEEE registry, of which 1C:44:19 is one. A device made by TP-LINK TECHNOLOGIES CO.,LTD. could carry a MAC address from any of them.