Juniper Networks 有多少个 MAC 地址前缀（OUI）？

根据 IEEE 官方注册库，Juniper Networks 共注册了 207 个 OUI / MAC 地址前缀，例如 00:05:85、00:10:DB、00:12:1E 等。

如何判断一个 MAC 地址是否属于 Juniper Networks？

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

Juniper Networks

该厂商在 IEEE 注册的 OUI / MAC 地址前缀清单，共 207 个。

207

OUI 前缀总数

207

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 207 个

OUI 前缀	注册类型	前缀位长	地址容量	示例 MAC
`00:05:85`	MA-L	24 bit	16,777,216	`00:05:85:00:00:00`
`00:10:DB`	MA-L	24 bit	16,777,216	`00:10:DB:00:00:00`
`00:12:1E`	MA-L	24 bit	16,777,216	`00:12:1E:00:00:00`
`00:14:F6`	MA-L	24 bit	16,777,216	`00:14:F6:00:00:00`
`00:17:CB`	MA-L	24 bit	16,777,216	`00:17:CB:00:00:00`
`00:19:E2`	MA-L	24 bit	16,777,216	`00:19:E2:00:00:00`
`00:1B:C0`	MA-L	24 bit	16,777,216	`00:1B:C0:00:00:00`
`00:1D:B5`	MA-L	24 bit	16,777,216	`00:1D:B5:00:00:00`
`00:1F:12`	MA-L	24 bit	16,777,216	`00:1F:12:00:00:00`
`00:21:59`	MA-L	24 bit	16,777,216	`00:21:59:00:00:00`
`00:22:83`	MA-L	24 bit	16,777,216	`00:22:83:00:00:00`
`00:23:9C`	MA-L	24 bit	16,777,216	`00:23:9C:00:00:00`
`00:24:DC`	MA-L	24 bit	16,777,216	`00:24:DC:00:00:00`
`00:26:88`	MA-L	24 bit	16,777,216	`00:26:88:00:00:00`
`00:31:46`	MA-L	24 bit	16,777,216	`00:31:46:00:00:00`
`00:90:69`	MA-L	24 bit	16,777,216	`00:90:69:00:00:00`
`00:C5:2C`	MA-L	24 bit	16,777,216	`00:C5:2C:00:00:00`
`00:CC:34`	MA-L	24 bit	16,777,216	`00:CC:34:00:00:00`
`04:5C:6C`	MA-L	24 bit	16,777,216	`04:5C:6C:00:00:00`
`04:69:8F`	MA-L	24 bit	16,777,216	`04:69:8F:00:00:00`
`08:05:E2`	MA-L	24 bit	16,777,216	`08:05:E2:00:00:00`
`08:76:71`	MA-L	24 bit	16,777,216	`08:76:71:00:00:00`
`08:81:F4`	MA-L	24 bit	16,777,216	`08:81:F4:00:00:00`
`08:B2:58`	MA-L	24 bit	16,777,216	`08:B2:58:00:00:00`
`08:D0:1E`	MA-L	24 bit	16,777,216	`08:D0:1E:00:00:00`
`0C:59:9C`	MA-L	24 bit	16,777,216	`0C:59:9C:00:00:00`
`0C:81:26`	MA-L	24 bit	16,777,216	`0C:81:26:00:00:00`
`0C:86:10`	MA-L	24 bit	16,777,216	`0C:86:10:00:00:00`
`10:0E:7E`	MA-L	24 bit	16,777,216	`10:0E:7E:00:00:00`
`10:39:E9`	MA-L	24 bit	16,777,216	`10:39:E9:00:00:00`
`14:B3:A1`	MA-L	24 bit	16,777,216	`14:B3:A1:00:00:00`
`18:2A:D3`	MA-L	24 bit	16,777,216	`18:2A:D3:00:00:00`
`1C:9C:8C`	MA-L	24 bit	16,777,216	`1C:9C:8C:00:00:00`
`1C:D2:1E`	MA-L	24 bit	16,777,216	`1C:D2:1E:00:00:00`
`20:1B:C9`	MA-L	24 bit	16,777,216	`20:1B:C9:00:00:00`
`20:4E:71`	MA-L	24 bit	16,777,216	`20:4E:71:00:00:00`
`20:93:39`	MA-L	24 bit	16,777,216	`20:93:39:00:00:00`
`20:D8:0B`	MA-L	24 bit	16,777,216	`20:D8:0B:00:00:00`
`20:ED:47`	MA-L	24 bit	16,777,216	`20:ED:47:00:00:00`
`24:5D:92`	MA-L	24 bit	16,777,216	`24:5D:92:00:00:00`
`24:DB:94`	MA-L	24 bit	16,777,216	`24:DB:94:00:00:00`
`24:FC:4E`	MA-L	24 bit	16,777,216	`24:FC:4E:00:00:00`
`28:8A:1C`	MA-L	24 bit	16,777,216	`28:8A:1C:00:00:00`
`28:A2:4B`	MA-L	24 bit	16,777,216	`28:A2:4B:00:00:00`
`28:B8:29`	MA-L	24 bit	16,777,216	`28:B8:29:00:00:00`
`28:C0:DA`	MA-L	24 bit	16,777,216	`28:C0:DA:00:00:00`
`2C:21:31`	MA-L	24 bit	16,777,216	`2C:21:31:00:00:00`
`2C:21:72`	MA-L	24 bit	16,777,216	`2C:21:72:00:00:00`
`2C:4C:15`	MA-L	24 bit	16,777,216	`2C:4C:15:00:00:00`
`2C:6B:F5`	MA-L	24 bit	16,777,216	`2C:6B:F5:00:00:00`
`30:63:EA`	MA-L	24 bit	16,777,216	`30:63:EA:00:00:00`
`30:7C:5E`	MA-L	24 bit	16,777,216	`30:7C:5E:00:00:00`
`30:B6:4F`	MA-L	24 bit	16,777,216	`30:B6:4F:00:00:00`
`34:28:65`	MA-L	24 bit	16,777,216	`34:28:65:00:00:00`
`34:93:6F`	MA-L	24 bit	16,777,216	`34:93:6F:00:00:00`
`38:4F:49`	MA-L	24 bit	16,777,216	`38:4F:49:00:00:00`
`38:6D:ED`	MA-L	24 bit	16,777,216	`38:6D:ED:00:00:00`
`38:F2:0D`	MA-L	24 bit	16,777,216	`38:F2:0D:00:00:00`
`3C:08:CD`	MA-L	24 bit	16,777,216	`3C:08:CD:00:00:00`
`3C:61:04`	MA-L	24 bit	16,777,216	`3C:61:04:00:00:00`
`3C:8A:B0`	MA-L	24 bit	16,777,216	`3C:8A:B0:00:00:00`
`3C:8C:93`	MA-L	24 bit	16,777,216	`3C:8C:93:00:00:00`
`3C:94:D5`	MA-L	24 bit	16,777,216	`3C:94:D5:00:00:00`
`40:36:B7`	MA-L	24 bit	16,777,216	`40:36:B7:00:00:00`
`40:71:83`	MA-L	24 bit	16,777,216	`40:71:83:00:00:00`
`40:7F:5F`	MA-L	24 bit	16,777,216	`40:7F:5F:00:00:00`
`40:8F:9D`	MA-L	24 bit	16,777,216	`40:8F:9D:00:00:00`
`40:9E:A4`	MA-L	24 bit	16,777,216	`40:9E:A4:00:00:00`
`40:A6:77`	MA-L	24 bit	16,777,216	`40:A6:77:00:00:00`
`40:B4:F0`	MA-L	24 bit	16,777,216	`40:B4:F0:00:00:00`
`40:DE:AD`	MA-L	24 bit	16,777,216	`40:DE:AD:00:00:00`
`44:AA:50`	MA-L	24 bit	16,777,216	`44:AA:50:00:00:00`
`44:EC:CE`	MA-L	24 bit	16,777,216	`44:EC:CE:00:00:00`
`44:F4:77`	MA-L	24 bit	16,777,216	`44:F4:77:00:00:00`
`48:5A:0D`	MA-L	24 bit	16,777,216	`48:5A:0D:00:00:00`
`48:73:10`	MA-L	24 bit	16,777,216	`48:73:10:00:00:00`
`4C:16:FC`	MA-L	24 bit	16,777,216	`4C:16:FC:00:00:00`
`4C:4A:B4`	MA-L	24 bit	16,777,216	`4C:4A:B4:00:00:00`
`4C:6D:58`	MA-L	24 bit	16,777,216	`4C:6D:58:00:00:00`
`4C:73:4F`	MA-L	24 bit	16,777,216	`4C:73:4F:00:00:00`
`4C:96:14`	MA-L	24 bit	16,777,216	`4C:96:14:00:00:00`
`50:C5:8D`	MA-L	24 bit	16,777,216	`50:C5:8D:00:00:00`
`50:C7:09`	MA-L	24 bit	16,777,216	`50:C7:09:00:00:00`
`54:1E:56`	MA-L	24 bit	16,777,216	`54:1E:56:00:00:00`
`54:4B:8C`	MA-L	24 bit	16,777,216	`54:4B:8C:00:00:00`
`54:E0:32`	MA-L	24 bit	16,777,216	`54:E0:32:00:00:00`
`58:00:BB`	MA-L	24 bit	16,777,216	`58:00:BB:00:00:00`
`58:86:70`	MA-L	24 bit	16,777,216	`58:86:70:00:00:00`
`58:E4:34`	MA-L	24 bit	16,777,216	`58:E4:34:00:00:00`
`5C:39:77`	MA-L	24 bit	16,777,216	`5C:39:77:00:00:00`
`5C:45:27`	MA-L	24 bit	16,777,216	`5C:45:27:00:00:00`
`5C:5E:AB`	MA-L	24 bit	16,777,216	`5C:5E:AB:00:00:00`
`60:C7:8D`	MA-L	24 bit	16,777,216	`60:C7:8D:00:00:00`
`64:64:9B`	MA-L	24 bit	16,777,216	`64:64:9B:00:00:00`
`64:87:88`	MA-L	24 bit	16,777,216	`64:87:88:00:00:00`
`64:AC:2B`	MA-L	24 bit	16,777,216	`64:AC:2B:00:00:00`
`64:C3:D6`	MA-L	24 bit	16,777,216	`64:C3:D6:00:00:00`
`68:22:8E`	MA-L	24 bit	16,777,216	`68:22:8E:00:00:00`
`68:ED:57`	MA-L	24 bit	16,777,216	`68:ED:57:00:00:00`
`68:F3:8E`	MA-L	24 bit	16,777,216	`68:F3:8E:00:00:00`
`6C:62:FE`	MA-L	24 bit	16,777,216	`6C:62:FE:00:00:00`
`6C:78:C1`	MA-L	24 bit	16,777,216	`6C:78:C1:00:00:00`
`74:29:72`	MA-L	24 bit	16,777,216	`74:29:72:00:00:00`
`74:E7:98`	MA-L	24 bit	16,777,216	`74:E7:98:00:00:00`
`78:19:F7`	MA-L	24 bit	16,777,216	`78:19:F7:00:00:00`
`78:4F:9B`	MA-L	24 bit	16,777,216	`78:4F:9B:00:00:00`
`78:50:7C`	MA-L	24 bit	16,777,216	`78:50:7C:00:00:00`
`78:FE:3D`	MA-L	24 bit	16,777,216	`78:FE:3D:00:00:00`
`7C:25:86`	MA-L	24 bit	16,777,216	`7C:25:86:00:00:00`
`7C:E2:CA`	MA-L	24 bit	16,777,216	`7C:E2:CA:00:00:00`
`80:13:BE`	MA-L	24 bit	16,777,216	`80:13:BE:00:00:00`
`80:43:3F`	MA-L	24 bit	16,777,216	`80:43:3F:00:00:00`
`80:71:1F`	MA-L	24 bit	16,777,216	`80:71:1F:00:00:00`
`80:7F:F8`	MA-L	24 bit	16,777,216	`80:7F:F8:00:00:00`
`80:AC:AC`	MA-L	24 bit	16,777,216	`80:AC:AC:00:00:00`
`80:DB:17`	MA-L	24 bit	16,777,216	`80:DB:17:00:00:00`
`84:03:28`	MA-L	24 bit	16,777,216	`84:03:28:00:00:00`
`84:18:88`	MA-L	24 bit	16,777,216	`84:18:88:00:00:00`
`84:52:34`	MA-L	24 bit	16,777,216	`84:52:34:00:00:00`
`84:B5:9C`	MA-L	24 bit	16,777,216	`84:B5:9C:00:00:00`
`84:C1:C1`	MA-L	24 bit	16,777,216	`84:C1:C1:00:00:00`
`88:0A:A3`	MA-L	24 bit	16,777,216	`88:0A:A3:00:00:00`
`88:28:FB`	MA-L	24 bit	16,777,216	`88:28:FB:00:00:00`
`88:30:37`	MA-L	24 bit	16,777,216	`88:30:37:00:00:00`
`88:90:09`	MA-L	24 bit	16,777,216	`88:90:09:00:00:00`
`88:A2:5E`	MA-L	24 bit	16,777,216	`88:A2:5E:00:00:00`
`88:D9:8F`	MA-L	24 bit	16,777,216	`88:D9:8F:00:00:00`
`88:E0:F3`	MA-L	24 bit	16,777,216	`88:E0:F3:00:00:00`
`88:E6:4B`	MA-L	24 bit	16,777,216	`88:E6:4B:00:00:00`
`94:BF:94`	MA-L	24 bit	16,777,216	`94:BF:94:00:00:00`
`94:F7:AD`	MA-L	24 bit	16,777,216	`94:F7:AD:00:00:00`
`98:49:25`	MA-L	24 bit	16,777,216	`98:49:25:00:00:00`
`98:86:8B`	MA-L	24 bit	16,777,216	`98:86:8B:00:00:00`
`9C:5A:80`	MA-L	24 bit	16,777,216	`9C:5A:80:00:00:00`
`9C:8A:CB`	MA-L	24 bit	16,777,216	`9C:8A:CB:00:00:00`
`9C:C8:93`	MA-L	24 bit	16,777,216	`9C:C8:93:00:00:00`
`9C:CC:83`	MA-L	24 bit	16,777,216	`9C:CC:83:00:00:00`
`A4:51:5E`	MA-L	24 bit	16,777,216	`A4:51:5E:00:00:00`
`A4:7F:1B`	MA-L	24 bit	16,777,216	`A4:7F:1B:00:00:00`
`A4:E1:1A`	MA-L	24 bit	16,777,216	`A4:E1:1A:00:00:00`
`A8:D0:E5`	MA-L	24 bit	16,777,216	`A8:D0:E5:00:00:00`
`AC:4B:C8`	MA-L	24 bit	16,777,216	`AC:4B:C8:00:00:00`
`AC:78:D1`	MA-L	24 bit	16,777,216	`AC:78:D1:00:00:00`
`AC:A0:9D`	MA-L	24 bit	16,777,216	`AC:A0:9D:00:00:00`
`B0:33:A6`	MA-L	24 bit	16,777,216	`B0:33:A6:00:00:00`
`B0:A8:6E`	MA-L	24 bit	16,777,216	`B0:A8:6E:00:00:00`
`B0:C6:9A`	MA-L	24 bit	16,777,216	`B0:C6:9A:00:00:00`
`B0:EB:7F`	MA-L	24 bit	16,777,216	`B0:EB:7F:00:00:00`
`B4:16:78`	MA-L	24 bit	16,777,216	`B4:16:78:00:00:00`
`B4:8A:5F`	MA-L	24 bit	16,777,216	`B4:8A:5F:00:00:00`
`B4:F9:5D`	MA-L	24 bit	16,777,216	`B4:F9:5D:00:00:00`
`B8:61:FC`	MA-L	24 bit	16,777,216	`B8:61:FC:00:00:00`
`B8:C2:53`	MA-L	24 bit	16,777,216	`B8:C2:53:00:00:00`
`B8:F0:15`	MA-L	24 bit	16,777,216	`B8:F0:15:00:00:00`
`BC:0F:FE`	MA-L	24 bit	16,777,216	`BC:0F:FE:00:00:00`
`C0:03:80`	MA-L	24 bit	16,777,216	`C0:03:80:00:00:00`
`C0:19:44`	MA-L	24 bit	16,777,216	`C0:19:44:00:00:00`
`C0:42:D0`	MA-L	24 bit	16,777,216	`C0:42:D0:00:00:00`
`C0:BF:A7`	MA-L	24 bit	16,777,216	`C0:BF:A7:00:00:00`
`C0:DF:ED`	MA-L	24 bit	16,777,216	`C0:DF:ED:00:00:00`
`C4:09:B7`	MA-L	24 bit	16,777,216	`C4:09:B7:00:00:00`
`C8:13:37`	MA-L	24 bit	16,777,216	`C8:13:37:00:00:00`
`C8:D9:95`	MA-L	24 bit	16,777,216	`C8:D9:95:00:00:00`
`C8:E7:F0`	MA-L	24 bit	16,777,216	`C8:E7:F0:00:00:00`
`C8:FE:6A`	MA-L	24 bit	16,777,216	`C8:FE:6A:00:00:00`
`CC:E1:7F`	MA-L	24 bit	16,777,216	`CC:E1:7F:00:00:00`
`CC:E1:94`	MA-L	24 bit	16,777,216	`CC:E1:94:00:00:00`
`D0:07:CA`	MA-L	24 bit	16,777,216	`D0:07:CA:00:00:00`
`D0:48:A1`	MA-L	24 bit	16,777,216	`D0:48:A1:00:00:00`
`D0:81:C5`	MA-L	24 bit	16,777,216	`D0:81:C5:00:00:00`
`D0:DD:49`	MA-L	24 bit	16,777,216	`D0:DD:49:00:00:00`
`D4:04:FF`	MA-L	24 bit	16,777,216	`D4:04:FF:00:00:00`
`D4:5A:3F`	MA-L	24 bit	16,777,216	`D4:5A:3F:00:00:00`
`D4:99:6C`	MA-L	24 bit	16,777,216	`D4:99:6C:00:00:00`
`D8:18:D3`	MA-L	24 bit	16,777,216	`D8:18:D3:00:00:00`
`D8:53:9A`	MA-L	24 bit	16,777,216	`D8:53:9A:00:00:00`
`D8:B1:22`	MA-L	24 bit	16,777,216	`D8:B1:22:00:00:00`
`DC:38:E1`	MA-L	24 bit	16,777,216	`DC:38:E1:00:00:00`
`E0:30:F9`	MA-L	24 bit	16,777,216	`E0:30:F9:00:00:00`
`E0:F6:2D`	MA-L	24 bit	16,777,216	`E0:F6:2D:00:00:00`
`E4:23:3C`	MA-L	24 bit	16,777,216	`E4:23:3C:00:00:00`
`E4:5D:37`	MA-L	24 bit	16,777,216	`E4:5D:37:00:00:00`
`E4:5E:CC`	MA-L	24 bit	16,777,216	`E4:5E:CC:00:00:00`
`E4:79:3F`	MA-L	24 bit	16,777,216	`E4:79:3F:00:00:00`
`E4:F2:7C`	MA-L	24 bit	16,777,216	`E4:F2:7C:00:00:00`
`E4:FC:82`	MA-L	24 bit	16,777,216	`E4:FC:82:00:00:00`
`E8:24:A6`	MA-L	24 bit	16,777,216	`E8:24:A6:00:00:00`
`E8:A2:45`	MA-L	24 bit	16,777,216	`E8:A2:45:00:00:00`
`E8:A5:5A`	MA-L	24 bit	16,777,216	`E8:A5:5A:00:00:00`
`E8:B6:C2`	MA-L	24 bit	16,777,216	`E8:B6:C2:00:00:00`
`EC:13:DB`	MA-L	24 bit	16,777,216	`EC:13:DB:00:00:00`
`EC:38:73`	MA-L	24 bit	16,777,216	`EC:38:73:00:00:00`
`EC:3E:F7`	MA-L	24 bit	16,777,216	`EC:3E:F7:00:00:00`
`EC:7C:5C`	MA-L	24 bit	16,777,216	`EC:7C:5C:00:00:00`
`EC:94:D5`	MA-L	24 bit	16,777,216	`EC:94:D5:00:00:00`
`F0:1C:2D`	MA-L	24 bit	16,777,216	`F0:1C:2D:00:00:00`
`F0:4B:3A`	MA-L	24 bit	16,777,216	`F0:4B:3A:00:00:00`
`F0:7C:C7`	MA-L	24 bit	16,777,216	`F0:7C:C7:00:00:00`
`F0:D3:2B`	MA-L	24 bit	16,777,216	`F0:D3:2B:00:00:00`
`F4:A7:39`	MA-L	24 bit	16,777,216	`F4:A7:39:00:00:00`
`F4:B5:2F`	MA-L	24 bit	16,777,216	`F4:B5:2F:00:00:00`
`F4:BF:A8`	MA-L	24 bit	16,777,216	`F4:BF:A8:00:00:00`
`F4:CC:55`	MA-L	24 bit	16,777,216	`F4:CC:55:00:00:00`
`F8:C0:01`	MA-L	24 bit	16,777,216	`F8:C0:01:00:00:00`
`F8:C1:16`	MA-L	24 bit	16,777,216	`F8:C1:16:00:00:00`
`FC:33:42`	MA-L	24 bit	16,777,216	`FC:33:42:00:00:00`
`FC:96:43`	MA-L	24 bit	16,777,216	`FC:96:43:00:00:00`

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