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MAC Address Lookup - 7085c2 #Webmaster
MAC address
| MAC address | 7085C2 |
|---|---|
| OUI | 7085C2 |
| Registry type | MA-L |
| Region | Taiwan, Province of China 🇹🇼 |
| Manufacturer | ASRock Incorporation |
| Address | 2F., No. 37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei 112 |
| I/G bit | Unicast Multicast |
| U/L bit | Globally unique Locally administered |
MAC address structure
A1-B2-C3-D4-E5-F6
- A1-B2-C3：OUI给MAC制造商分配的地址段，每个厂商唯一。
- D4-E5-F6：MAC制造商自己分配，理论上在地址段内唯一。
- A1...F6：每组由两位十六进制数构成，范围从00~FF（十进制：0~255），共256个。理论上MAC地址共有组合数量为：256^6=281,474,976,710,656。
About
- MAC地址（MAC address）
- 英文：Media Access Control Address。直译为媒体存取控制位址，也称为局域网地址（LAN Address），MAC位址，以太网地址（Ethernet Address）或物理地址（Physical Address），它是一个用来确认网络设备位置的位址。在OSI模型中，第三层网络层负责IP地址，第二层数据链路层则负责MAC位址 。MAC地址用于在网络中唯一标示一个网卡，一台设备若有一或多个网卡，则每个网卡都需要并会有一个唯一的MAC地址。
- 组织唯一标识符（OUI）
- 英文：Organizationally unique identifier。在任何一块网卡（NIC）中烧录的6字节MAC地址中，前3个字节体现了OUI，其表明了NIC的制造组织。通常情况下，该标识符是唯一的。
Ranking of MAC addresses owner
- [ 🇺🇸 ] Cisco Systems, Inc1013
- [ 🇺🇸 ] Apple, Inc.973
- [ 🇨🇳 ] HUAWEI TECHNOLOGIES CO.,LTD906
- [ 🇰🇷 ] Samsung Electronics Co.,Ltd690
- [ 🇲🇾 ] Intel Corporate490
- [ 🇨🇳 ] Huawei Device Co., Ltd.380
- [ 🇺🇸 ] ARRIS Group, Inc.343
- [ 🇺🇸 ] IEEE Registration Authority270
- [ 🇺🇸 ] zte corporation267
- [ 🇺🇸 ] Texas Instruments257
Ranking of regional manufacturers
- 🇺🇸 United States of America8059
- 🇨🇳 China3978
- 🇩🇪 Germany2137
- 🇰🇷 South Korea1912
- 🇯🇵 Japan1700
- 🇹🇼 Taiwan, China1606
- 🇬🇧 United Kingdom1216
- 🇨🇦 Canada799
- 🇫🇷 France756
- 🇮🇹 Italy652
Ranking of regional OUI quantity
- 🇺🇸 United States of America14114
- 🇨🇳 China7786
- 🇰🇷 South Korea2963
- 🇩🇪 Germany2707
- 🇹🇼 Taiwan, China2418
- 🇯🇵 Japan2292
- 🇬🇧 United Kingdom1418
- 🇨🇦 Canada1064
- 🇫🇷 France1057
- 🇮🇹 Italy875
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