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

根据 IEEE 官方注册库，Zyxel Communications Corporation 共注册了 69 个 OUI / MAC 地址前缀，例如 00:13:49、00:19:CB、00:23:F8 等。

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

取 MAC 地址的前缀（前 6~9 位十六进制）与本页列出的 Zyxel Communications 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。

Zyxel Communications Corporation

该厂商在 IEEE 注册的 OUI / MAC 地址前缀清单，共 69 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 69 个

OUI 前缀	注册类型	前缀位长	地址容量	示例 MAC
`00:13:49`	MA-L	24 bit	16,777,216	`00:13:49:00:00:00`
`00:19:CB`	MA-L	24 bit	16,777,216	`00:19:CB:00:00:00`
`00:23:F8`	MA-L	24 bit	16,777,216	`00:23:F8:00:00:00`
`00:A0:C5`	MA-L	24 bit	16,777,216	`00:A0:C5:00:00:00`
`04:BF:6D`	MA-L	24 bit	16,777,216	`04:BF:6D:00:00:00`
`08:26:97`	MA-L	24 bit	16,777,216	`08:26:97:00:00:00`
`10:71:B3`	MA-L	24 bit	16,777,216	`10:71:B3:00:00:00`
`10:7B:EF`	MA-L	24 bit	16,777,216	`10:7B:EF:00:00:00`
`14:33:75`	MA-L	24 bit	16,777,216	`14:33:75:00:00:00`
`14:36:0E`	MA-L	24 bit	16,777,216	`14:36:0E:00:00:00`
`14:C7:C4`	MA-L	24 bit	16,777,216	`14:C7:C4:00:00:00`
`1C:74:0D`	MA-L	24 bit	16,777,216	`1C:74:0D:00:00:00`
`28:28:5D`	MA-L	24 bit	16,777,216	`28:28:5D:00:00:00`
`30:15:77`	MA-L	24 bit	16,777,216	`30:15:77:00:00:00`
`30:BD:13`	MA-L	24 bit	16,777,216	`30:BD:13:00:00:00`
`3C:F7:5D`	MA-L	24 bit	16,777,216	`3C:F7:5D:00:00:00`
`40:4A:03`	MA-L	24 bit	16,777,216	`40:4A:03:00:00:00`
`44:63:C2`	MA-L	24 bit	16,777,216	`44:63:C2:00:00:00`
`48:ED:E6`	MA-L	24 bit	16,777,216	`48:ED:E6:00:00:00`
`4C:9E:FF`	MA-L	24 bit	16,777,216	`4C:9E:FF:00:00:00`
`4C:C5:3E`	MA-L	24 bit	16,777,216	`4C:C5:3E:00:00:00`
`50:67:F0`	MA-L	24 bit	16,777,216	`50:67:F0:00:00:00`
`50:E0:39`	MA-L	24 bit	16,777,216	`50:E0:39:00:00:00`
`54:83:3A`	MA-L	24 bit	16,777,216	`54:83:3A:00:00:00`
`58:8B:F3`	MA-L	24 bit	16,777,216	`58:8B:F3:00:00:00`
`5C:64:8E`	MA-L	24 bit	16,777,216	`5C:64:8E:00:00:00`
`5C:6A:80`	MA-L	24 bit	16,777,216	`5C:6A:80:00:00:00`
`5C:E2:8C`	MA-L	24 bit	16,777,216	`5C:E2:8C:00:00:00`
`5C:F4:AB`	MA-L	24 bit	16,777,216	`5C:F4:AB:00:00:00`
`60:31:97`	MA-L	24 bit	16,777,216	`60:31:97:00:00:00`
`64:DD:68`	MA-L	24 bit	16,777,216	`64:DD:68:00:00:00`
`6C:4F:89`	MA-L	24 bit	16,777,216	`6C:4F:89:00:00:00`
`70:49:A2`	MA-L	24 bit	16,777,216	`70:49:A2:00:00:00`
`78:C5:7D`	MA-L	24 bit	16,777,216	`78:C5:7D:00:00:00`
`7C:77:16`	MA-L	24 bit	16,777,216	`7C:77:16:00:00:00`
`80:EA:0B`	MA-L	24 bit	16,777,216	`80:EA:0B:00:00:00`
`88:AC:C0`	MA-L	24 bit	16,777,216	`88:AC:C0:00:00:00`
`88:F3:D5`	MA-L	24 bit	16,777,216	`88:F3:D5:00:00:00`
`8C:59:73`	MA-L	24 bit	16,777,216	`8C:59:73:00:00:00`
`90:9F:22`	MA-L	24 bit	16,777,216	`90:9F:22:00:00:00`
`90:EF:68`	MA-L	24 bit	16,777,216	`90:EF:68:00:00:00`
`98:0D:67`	MA-L	24 bit	16,777,216	`98:0D:67:00:00:00`
`A0:E4:CB`	MA-L	24 bit	16,777,216	`A0:E4:CB:00:00:00`
`B0:B2:DC`	MA-L	24 bit	16,777,216	`B0:B2:DC:00:00:00`
`B8:D5:26`	MA-L	24 bit	16,777,216	`B8:D5:26:00:00:00`
`B8:EC:A3`	MA-L	24 bit	16,777,216	`B8:EC:A3:00:00:00`
`BC:7E:C3`	MA-L	24 bit	16,777,216	`BC:7E:C3:00:00:00`
`BC:99:11`	MA-L	24 bit	16,777,216	`BC:99:11:00:00:00`
`BC:CF:4F`	MA-L	24 bit	16,777,216	`BC:CF:4F:00:00:00`
`C0:2E:5F`	MA-L	24 bit	16,777,216	`C0:2E:5F:00:00:00`
`C4:9A:31`	MA-L	24 bit	16,777,216	`C4:9A:31:00:00:00`
`C8:33:74`	MA-L	24 bit	16,777,216	`C8:33:74:00:00:00`
`C8:54:4B`	MA-L	24 bit	16,777,216	`C8:54:4B:00:00:00`
`C8:6C:87`	MA-L	24 bit	16,777,216	`C8:6C:87:00:00:00`
`CC:5D:4E`	MA-L	24 bit	16,777,216	`CC:5D:4E:00:00:00`
`D4:1A:D1`	MA-L	24 bit	16,777,216	`D4:1A:D1:00:00:00`
`D4:3D:F3`	MA-L	24 bit	16,777,216	`D4:3D:F3:00:00:00`
`D8:91:2A`	MA-L	24 bit	16,777,216	`D8:91:2A:00:00:00`
`D8:EC:E5`	MA-L	24 bit	16,777,216	`D8:EC:E5:00:00:00`
`E4:18:6B`	MA-L	24 bit	16,777,216	`E4:18:6B:00:00:00`
`E8:37:7A`	MA-L	24 bit	16,777,216	`E8:37:7A:00:00:00`
`EC:3E:B3`	MA-L	24 bit	16,777,216	`EC:3E:B3:00:00:00`
`EC:43:F6`	MA-L	24 bit	16,777,216	`EC:43:F6:00:00:00`
`F0:87:56`	MA-L	24 bit	16,777,216	`F0:87:56:00:00:00`
`F4:4D:5C`	MA-L	24 bit	16,777,216	`F4:4D:5C:00:00:00`
`F8:0D:A9`	MA-L	24 bit	16,777,216	`F8:0D:A9:00:00:00`
`FC:22:F4`	MA-L	24 bit	16,777,216	`FC:22:F4:00:00:00`
`FC:9F:2A`	MA-L	24 bit	16,777,216	`FC:9F:2A:00:00:00`
`FC:F5:28`	MA-L	24 bit	16,777,216	`FC:F5:28:00:00:00`

关于 Zyxel Communications 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 Zyxel Communications 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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