Arcadyan Corporation 有多少个 MAC 地址前缀（OUI）？

根据 IEEE 官方注册库，Arcadyan Corporation 共注册了 89 个 OUI / MAC 地址前缀，例如 00:12:BF、00:1A:2A、00:1D:19 等。

如何判断一个 MAC 地址是否属于 Arcadyan Corporation？

取 MAC 地址的前缀（前 6~9 位十六进制）与本页列出的 Arcadyan Corporation 前缀比对即可；也可直接使用 MAC 地址厂商查询工具自动匹配。

MAC地址厂商查询的数据来源是什么？

数据来自 IEEE 注册管理机构（Registration Authority）公开的 OUI/MA 数据库，包含 MA-L（24位）、MA-M（28位）、MA-S（36位）三张表，本工具按最长前缀优先匹配以保证准确归属。

支持哪些 MAC 地址格式？

支持冒号、连字符、点分以及无分隔等任意写法，例如 00:1B:44:11:3A:B7、00-1B-44-11-3A-B7、001b.4411.3ab7，大小写均可。也可只输入前 6 位或更长的前缀。

为什么有些 MAC 地址查不到厂商？

若 MAC 的第一个字节 U/L 位为 1，则属于本地管理地址（如虚拟机、随机化 MAC），并未在 IEEE 注册，自然查不到厂商；此外极少数新分配前缀可能尚未收录。

单播、多播、本地管理是什么意思？

MAC 第一个字节的最低位（I/G 位）为 0 表示单播、为 1 表示多播；次低位（U/L 位）为 0 表示全局唯一（由 IEEE 分配 OUI），为 1 表示本地管理。全为 FF 则是广播地址。

数据是否安全？会被上传吗？

查询仅把 MAC 前缀发送到本站接口做厂商匹配，不保存任何记录；属性解析在本地浏览器完成，隐私安全。

Arcadyan Corporation

该厂商在 IEEE 注册的 OUI / MAC 地址前缀清单，共 89 个。

OUI 前缀总数

MA-L（24位）

MA-M（28位）

MA-S（36位）

想根据具体 MAC 地址反查厂商？

打开 MAC 地址厂商查询

OUI 前缀清单

共 89 个

OUI 前缀	注册类型	前缀位长	地址容量	示例 MAC
`00:12:BF`	MA-L	24 bit	16,777,216	`00:12:BF:00:00:00`
`00:1A:2A`	MA-L	24 bit	16,777,216	`00:1A:2A:00:00:00`
`00:1D:19`	MA-L	24 bit	16,777,216	`00:1D:19:00:00:00`
`00:23:08`	MA-L	24 bit	16,777,216	`00:23:08:00:00:00`
`00:26:4D`	MA-L	24 bit	16,777,216	`00:26:4D:00:00:00`
`04:09:86`	MA-L	24 bit	16,777,216	`04:09:86:00:00:00`
`04:70:56`	MA-L	24 bit	16,777,216	`04:70:56:00:00:00`
`04:A2:22`	MA-L	24 bit	16,777,216	`04:A2:22:00:00:00`
`08:27:A8`	MA-L	24 bit	16,777,216	`08:27:A8:00:00:00`
`0C:8E:29`	MA-L	24 bit	16,777,216	`0C:8E:29:00:00:00`
`18:58:80`	MA-L	24 bit	16,777,216	`18:58:80:00:00:00`
`18:60:41`	MA-L	24 bit	16,777,216	`18:60:41:00:00:00`
`18:82:8C`	MA-L	24 bit	16,777,216	`18:82:8C:00:00:00`
`18:83:BF`	MA-L	24 bit	16,777,216	`18:83:BF:00:00:00`
`18:A5:FF`	MA-L	24 bit	16,777,216	`18:A5:FF:00:00:00`
`1C:C6:3C`	MA-L	24 bit	16,777,216	`1C:C6:3C:00:00:00`
`1C:F4:3F`	MA-L	24 bit	16,777,216	`1C:F4:3F:00:00:00`
`20:37:F0`	MA-L	24 bit	16,777,216	`20:37:F0:00:00:00`
`2C:59:17`	MA-L	24 bit	16,777,216	`2C:59:17:00:00:00`
`30:B1:B5`	MA-L	24 bit	16,777,216	`30:B1:B5:00:00:00`
`34:19:4D`	MA-L	24 bit	16,777,216	`34:19:4D:00:00:00`
`38:06:E6`	MA-L	24 bit	16,777,216	`38:06:E6:00:00:00`
`3C:BD:C5`	MA-L	24 bit	16,777,216	`3C:BD:C5:00:00:00`
`3C:F0:83`	MA-L	24 bit	16,777,216	`3C:F0:83:00:00:00`
`44:FE:3B`	MA-L	24 bit	16,777,216	`44:FE:3B:00:00:00`
`48:8D:36`	MA-L	24 bit	16,777,216	`48:8D:36:00:00:00`
`4C:09:D4`	MA-L	24 bit	16,777,216	`4C:09:D4:00:00:00`
`4C:1B:86`	MA-L	24 bit	16,777,216	`4C:1B:86:00:00:00`
`4C:22:F3`	MA-L	24 bit	16,777,216	`4C:22:F3:00:00:00`
`50:7E:5D`	MA-L	24 bit	16,777,216	`50:7E:5D:00:00:00`
`54:3D:60`	MA-L	24 bit	16,777,216	`54:3D:60:00:00:00`
`54:B7:BD`	MA-L	24 bit	16,777,216	`54:B7:BD:00:00:00`
`54:C4:5B`	MA-L	24 bit	16,777,216	`54:C4:5B:00:00:00`
`5C:DC:96`	MA-L	24 bit	16,777,216	`5C:DC:96:00:00:00`
`60:45:E8`	MA-L	24 bit	16,777,216	`60:45:E8:00:00:00`
`60:8D:26`	MA-L	24 bit	16,777,216	`60:8D:26:00:00:00`
`60:95:F8`	MA-L	24 bit	16,777,216	`60:95:F8:00:00:00`
`64:75:DA`	MA-L	24 bit	16,777,216	`64:75:DA:00:00:00`
`64:7D:4D`	MA-L	24 bit	16,777,216	`64:7D:4D:00:00:00`
`64:CC:22`	MA-L	24 bit	16,777,216	`64:CC:22:00:00:00`
`6C:15:DB`	MA-L	24 bit	16,777,216	`6C:15:DB:00:00:00`
`70:3E:76`	MA-L	24 bit	16,777,216	`70:3E:76:00:00:00`
`70:97:41`	MA-L	24 bit	16,777,216	`70:97:41:00:00:00`
`74:31:70`	MA-L	24 bit	16,777,216	`74:31:70:00:00:00`
`74:90:BC`	MA-L	24 bit	16,777,216	`74:90:BC:00:00:00`
`78:DD:12`	MA-L	24 bit	16,777,216	`78:DD:12:00:00:00`
`7C:4F:B5`	MA-L	24 bit	16,777,216	`7C:4F:B5:00:00:00`
`80:82:FE`	MA-L	24 bit	16,777,216	`80:82:FE:00:00:00`
`84:90:0A`	MA-L	24 bit	16,777,216	`84:90:0A:00:00:00`
`84:9C:A6`	MA-L	24 bit	16,777,216	`84:9C:A6:00:00:00`
`84:A3:29`	MA-L	24 bit	16,777,216	`84:A3:29:00:00:00`
`88:03:55`	MA-L	24 bit	16,777,216	`88:03:55:00:00:00`
`88:25:2C`	MA-L	24 bit	16,777,216	`88:25:2C:00:00:00`
`8C:19:B5`	MA-L	24 bit	16,777,216	`8C:19:B5:00:00:00`
`8C:77:79`	MA-L	24 bit	16,777,216	`8C:77:79:00:00:00`
`8C:83:94`	MA-L	24 bit	16,777,216	`8C:83:94:00:00:00`
`94:6A:B0`	MA-L	24 bit	16,777,216	`94:6A:B0:00:00:00`
`9C:80:DF`	MA-L	24 bit	16,777,216	`9C:80:DF:00:00:00`
`A0:B5:49`	MA-L	24 bit	16,777,216	`A0:B5:49:00:00:00`
`A4:CE:DA`	MA-L	24 bit	16,777,216	`A4:CE:DA:00:00:00`
`A8:A2:37`	MA-L	24 bit	16,777,216	`A8:A2:37:00:00:00`
`A8:D3:F7`	MA-L	24 bit	16,777,216	`A8:D3:F7:00:00:00`
`AC:10:07`	MA-L	24 bit	16,777,216	`AC:10:07:00:00:00`
`AC:B6:87`	MA-L	24 bit	16,777,216	`AC:B6:87:00:00:00`
`AC:DF:9F`	MA-L	24 bit	16,777,216	`AC:DF:9F:00:00:00`
`B8:3B:AB`	MA-L	24 bit	16,777,216	`B8:3B:AB:00:00:00`
`B8:F8:53`	MA-L	24 bit	16,777,216	`B8:F8:53:00:00:00`
`BC:30:D9`	MA-L	24 bit	16,777,216	`BC:30:D9:00:00:00`
`BC:AF:6E`	MA-L	24 bit	16,777,216	`BC:AF:6E:00:00:00`
`BC:F8:7E`	MA-L	24 bit	16,777,216	`BC:F8:7E:00:00:00`
`C0:D7:AA`	MA-L	24 bit	16,777,216	`C0:D7:AA:00:00:00`
`C4:E5:32`	MA-L	24 bit	16,777,216	`C4:E5:32:00:00:00`
`C8:99:B2`	MA-L	24 bit	16,777,216	`C8:99:B2:00:00:00`
`CC:B1:48`	MA-L	24 bit	16,777,216	`CC:B1:48:00:00:00`
`CC:D4:2E`	MA-L	24 bit	16,777,216	`CC:D4:2E:00:00:00`
`D0:05:2A`	MA-L	24 bit	16,777,216	`D0:05:2A:00:00:00`
`D4:63:FE`	MA-L	24 bit	16,777,216	`D4:63:FE:00:00:00`
`D4:86:60`	MA-L	24 bit	16,777,216	`D4:86:60:00:00:00`
`DC:F5:1B`	MA-L	24 bit	16,777,216	`DC:F5:1B:00:00:00`
`E0:51:63`	MA-L	24 bit	16,777,216	`E0:51:63:00:00:00`
`E0:95:59`	MA-L	24 bit	16,777,216	`E0:95:59:00:00:00`
`E4:3E:D7`	MA-L	24 bit	16,777,216	`E4:3E:D7:00:00:00`
`E4:75:DC`	MA-L	24 bit	16,777,216	`E4:75:DC:00:00:00`
`EC:6C:9A`	MA-L	24 bit	16,777,216	`EC:6C:9A:00:00:00`
`EC:F4:51`	MA-L	24 bit	16,777,216	`EC:F4:51:00:00:00`
`F0:86:20`	MA-L	24 bit	16,777,216	`F0:86:20:00:00:00`
`F4:CA:E7`	MA-L	24 bit	16,777,216	`F4:CA:E7:00:00:00`
`F8:3E:B0`	MA-L	24 bit	16,777,216	`F8:3E:B0:00:00:00`
`FC:3D:A5`	MA-L	24 bit	16,777,216	`FC:3D:A5:00:00:00`

关于 Arcadyan Corporation 的 OUI

OUI（Organizationally Unique Identifier）是 IEEE 分配给设备制造商的地址前缀。一个 MAC 地址若以上表中的任一前缀开头，通常即由 Arcadyan Corporation 生产或贴牌。

注册类型决定前缀长度与可用地址数：MA-L 占 24 位（约 1678 万个地址）、MA-M 占 28 位、MA-S 占 36 位（4096 个地址）。判断归属时应按最长前缀优先匹配。

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