Espressif Inc. 有多少个 MAC 地址前缀（OUI）？

根据 IEEE 官方注册库，Espressif Inc. 共注册了 315 个 OUI / MAC 地址前缀，例如 00:4B:12、00:70:07、04:83:08 等。

如何判断一个 MAC 地址是否属于 Espressif Inc.？

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

Espressif Inc.

该厂商在 IEEE 注册的 OUI / MAC 地址前缀清单，共 315 个。

315

OUI 前缀总数

315

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 315 个

OUI 前缀	注册类型	前缀位长	地址容量	示例 MAC
`00:4B:12`	MA-L	24 bit	16,777,216	`00:4B:12:00:00:00`
`00:70:07`	MA-L	24 bit	16,777,216	`00:70:07:00:00:00`
`04:83:08`	MA-L	24 bit	16,777,216	`04:83:08:00:00:00`
`04:B2:47`	MA-L	24 bit	16,777,216	`04:B2:47:00:00:00`
`08:3A:8D`	MA-L	24 bit	16,777,216	`08:3A:8D:00:00:00`
`08:3A:F2`	MA-L	24 bit	16,777,216	`08:3A:F2:00:00:00`
`08:92:72`	MA-L	24 bit	16,777,216	`08:92:72:00:00:00`
`08:A6:F7`	MA-L	24 bit	16,777,216	`08:A6:F7:00:00:00`
`08:AD:0A`	MA-L	24 bit	16,777,216	`08:AD:0A:00:00:00`
`08:B6:1F`	MA-L	24 bit	16,777,216	`08:B6:1F:00:00:00`
`08:D1:F9`	MA-L	24 bit	16,777,216	`08:D1:F9:00:00:00`
`08:F9:E0`	MA-L	24 bit	16,777,216	`08:F9:E0:00:00:00`
`0C:4E:A0`	MA-L	24 bit	16,777,216	`0C:4E:A0:00:00:00`
`0C:8B:95`	MA-L	24 bit	16,777,216	`0C:8B:95:00:00:00`
`0C:B8:15`	MA-L	24 bit	16,777,216	`0C:B8:15:00:00:00`
`0C:DC:7E`	MA-L	24 bit	16,777,216	`0C:DC:7E:00:00:00`
`10:00:3B`	MA-L	24 bit	16,777,216	`10:00:3B:00:00:00`
`10:06:1C`	MA-L	24 bit	16,777,216	`10:06:1C:00:00:00`
`10:20:BA`	MA-L	24 bit	16,777,216	`10:20:BA:00:00:00`
`10:51:DB`	MA-L	24 bit	16,777,216	`10:51:DB:00:00:00`
`10:52:1C`	MA-L	24 bit	16,777,216	`10:52:1C:00:00:00`
`10:91:A8`	MA-L	24 bit	16,777,216	`10:91:A8:00:00:00`
`10:97:BD`	MA-L	24 bit	16,777,216	`10:97:BD:00:00:00`
`10:B4:1D`	MA-L	24 bit	16,777,216	`10:B4:1D:00:00:00`
`10:BD:A3`	MA-L	24 bit	16,777,216	`10:BD:A3:00:00:00`
`14:08:08`	MA-L	24 bit	16,777,216	`14:08:08:00:00:00`
`14:2B:2F`	MA-L	24 bit	16,777,216	`14:2B:2F:00:00:00`
`14:33:5C`	MA-L	24 bit	16,777,216	`14:33:5C:00:00:00`
`14:63:93`	MA-L	24 bit	16,777,216	`14:63:93:00:00:00`
`14:C1:9F`	MA-L	24 bit	16,777,216	`14:C1:9F:00:00:00`
`18:8B:0E`	MA-L	24 bit	16,777,216	`18:8B:0E:00:00:00`
`18:FE:34`	MA-L	24 bit	16,777,216	`18:FE:34:00:00:00`
`1C:69:20`	MA-L	24 bit	16,777,216	`1C:69:20:00:00:00`
`1C:8F:57`	MA-L	24 bit	16,777,216	`1C:8F:57:00:00:00`
`1C:9D:C2`	MA-L	24 bit	16,777,216	`1C:9D:C2:00:00:00`
`1C:C3:AB`	MA-L	24 bit	16,777,216	`1C:C3:AB:00:00:00`
`1C:DB:D4`	MA-L	24 bit	16,777,216	`1C:DB:D4:00:00:00`
`20:43:A8`	MA-L	24 bit	16,777,216	`20:43:A8:00:00:00`
`20:50:0D`	MA-L	24 bit	16,777,216	`20:50:0D:00:00:00`
`20:6E:F1`	MA-L	24 bit	16,777,216	`20:6E:F1:00:00:00`
`20:9B:A9`	MA-L	24 bit	16,777,216	`20:9B:A9:00:00:00`
`20:E7:C8`	MA-L	24 bit	16,777,216	`20:E7:C8:00:00:00`
`24:0A:C4`	MA-L	24 bit	16,777,216	`24:0A:C4:00:00:00`
`24:4C:AB`	MA-L	24 bit	16,777,216	`24:4C:AB:00:00:00`
`24:58:7C`	MA-L	24 bit	16,777,216	`24:58:7C:00:00:00`
`24:62:AB`	MA-L	24 bit	16,777,216	`24:62:AB:00:00:00`
`24:6F:28`	MA-L	24 bit	16,777,216	`24:6F:28:00:00:00`
`24:A1:60`	MA-L	24 bit	16,777,216	`24:A1:60:00:00:00`
`24:B2:DE`	MA-L	24 bit	16,777,216	`24:B2:DE:00:00:00`
`24:D7:EB`	MA-L	24 bit	16,777,216	`24:D7:EB:00:00:00`
`24:DC:C3`	MA-L	24 bit	16,777,216	`24:DC:C3:00:00:00`
`24:EC:4A`	MA-L	24 bit	16,777,216	`24:EC:4A:00:00:00`
`28:05:A5`	MA-L	24 bit	16,777,216	`28:05:A5:00:00:00`
`28:37:2F`	MA-L	24 bit	16,777,216	`28:37:2F:00:00:00`
`28:56:2F`	MA-L	24 bit	16,777,216	`28:56:2F:00:00:00`
`28:84:85`	MA-L	24 bit	16,777,216	`28:84:85:00:00:00`
`2C:3A:E8`	MA-L	24 bit	16,777,216	`2C:3A:E8:00:00:00`
`2C:BC:BB`	MA-L	24 bit	16,777,216	`2C:BC:BB:00:00:00`
`2C:F4:32`	MA-L	24 bit	16,777,216	`2C:F4:32:00:00:00`
`30:30:F9`	MA-L	24 bit	16,777,216	`30:30:F9:00:00:00`
`30:76:F5`	MA-L	24 bit	16,777,216	`30:76:F5:00:00:00`
`30:83:98`	MA-L	24 bit	16,777,216	`30:83:98:00:00:00`
`30:AE:A4`	MA-L	24 bit	16,777,216	`30:AE:A4:00:00:00`
`30:C6:F7`	MA-L	24 bit	16,777,216	`30:C6:F7:00:00:00`
`30:C9:22`	MA-L	24 bit	16,777,216	`30:C9:22:00:00:00`
`30:ED:A0`	MA-L	24 bit	16,777,216	`30:ED:A0:00:00:00`
`34:5F:45`	MA-L	24 bit	16,777,216	`34:5F:45:00:00:00`
`34:85:18`	MA-L	24 bit	16,777,216	`34:85:18:00:00:00`
`34:86:5D`	MA-L	24 bit	16,777,216	`34:86:5D:00:00:00`
`34:94:54`	MA-L	24 bit	16,777,216	`34:94:54:00:00:00`
`34:98:7A`	MA-L	24 bit	16,777,216	`34:98:7A:00:00:00`
`34:AB:95`	MA-L	24 bit	16,777,216	`34:AB:95:00:00:00`
`34:B4:72`	MA-L	24 bit	16,777,216	`34:B4:72:00:00:00`
`34:B7:DA`	MA-L	24 bit	16,777,216	`34:B7:DA:00:00:00`
`34:CD:B0`	MA-L	24 bit	16,777,216	`34:CD:B0:00:00:00`
`38:18:2B`	MA-L	24 bit	16,777,216	`38:18:2B:00:00:00`
`38:44:BE`	MA-L	24 bit	16,777,216	`38:44:BE:00:00:00`
`3C:0F:02`	MA-L	24 bit	16,777,216	`3C:0F:02:00:00:00`
`3C:61:05`	MA-L	24 bit	16,777,216	`3C:61:05:00:00:00`
`3C:71:BF`	MA-L	24 bit	16,777,216	`3C:71:BF:00:00:00`
`3C:84:27`	MA-L	24 bit	16,777,216	`3C:84:27:00:00:00`
`3C:8A:1F`	MA-L	24 bit	16,777,216	`3C:8A:1F:00:00:00`
`3C:DC:75`	MA-L	24 bit	16,777,216	`3C:DC:75:00:00:00`
`3C:E9:0E`	MA-L	24 bit	16,777,216	`3C:E9:0E:00:00:00`
`40:22:D8`	MA-L	24 bit	16,777,216	`40:22:D8:00:00:00`
`40:4C:CA`	MA-L	24 bit	16,777,216	`40:4C:CA:00:00:00`
`40:91:51`	MA-L	24 bit	16,777,216	`40:91:51:00:00:00`
`40:F5:20`	MA-L	24 bit	16,777,216	`40:F5:20:00:00:00`
`44:17:93`	MA-L	24 bit	16,777,216	`44:17:93:00:00:00`
`44:1B:F6`	MA-L	24 bit	16,777,216	`44:1B:F6:00:00:00`
`44:1D:64`	MA-L	24 bit	16,777,216	`44:1D:64:00:00:00`
`44:B1:76`	MA-L	24 bit	16,777,216	`44:B1:76:00:00:00`
`44:BD:8D`	MA-L	24 bit	16,777,216	`44:BD:8D:00:00:00`
`48:27:E2`	MA-L	24 bit	16,777,216	`48:27:E2:00:00:00`
`48:31:B7`	MA-L	24 bit	16,777,216	`48:31:B7:00:00:00`
`48:3F:DA`	MA-L	24 bit	16,777,216	`48:3F:DA:00:00:00`
`48:55:19`	MA-L	24 bit	16,777,216	`48:55:19:00:00:00`
`48:9D:31`	MA-L	24 bit	16,777,216	`48:9D:31:00:00:00`
`48:CA:43`	MA-L	24 bit	16,777,216	`48:CA:43:00:00:00`
`48:E7:29`	MA-L	24 bit	16,777,216	`48:E7:29:00:00:00`
`48:F6:EE`	MA-L	24 bit	16,777,216	`48:F6:EE:00:00:00`
`4C:11:AE`	MA-L	24 bit	16,777,216	`4C:11:AE:00:00:00`
`4C:75:25`	MA-L	24 bit	16,777,216	`4C:75:25:00:00:00`
`4C:C3:82`	MA-L	24 bit	16,777,216	`4C:C3:82:00:00:00`
`4C:EB:D6`	MA-L	24 bit	16,777,216	`4C:EB:D6:00:00:00`
`50:02:91`	MA-L	24 bit	16,777,216	`50:02:91:00:00:00`
`50:78:7D`	MA-L	24 bit	16,777,216	`50:78:7D:00:00:00`
`54:32:04`	MA-L	24 bit	16,777,216	`54:32:04:00:00:00`
`54:43:B2`	MA-L	24 bit	16,777,216	`54:43:B2:00:00:00`
`54:5A:A6`	MA-L	24 bit	16,777,216	`54:5A:A6:00:00:00`
`58:2A:BD`	MA-L	24 bit	16,777,216	`58:2A:BD:00:00:00`
`58:8C:81`	MA-L	24 bit	16,777,216	`58:8C:81:00:00:00`
`58:BF:25`	MA-L	24 bit	16,777,216	`58:BF:25:00:00:00`
`58:CF:79`	MA-L	24 bit	16,777,216	`58:CF:79:00:00:00`
`58:E6:C5`	MA-L	24 bit	16,777,216	`58:E6:C5:00:00:00`
`5C:01:3B`	MA-L	24 bit	16,777,216	`5C:01:3B:00:00:00`
`5C:CF:7F`	MA-L	24 bit	16,777,216	`5C:CF:7F:00:00:00`
`60:01:94`	MA-L	24 bit	16,777,216	`60:01:94:00:00:00`
`60:55:F9`	MA-L	24 bit	16,777,216	`60:55:F9:00:00:00`
`64:B7:08`	MA-L	24 bit	16,777,216	`64:B7:08:00:00:00`
`64:E8:33`	MA-L	24 bit	16,777,216	`64:E8:33:00:00:00`
`68:09:47`	MA-L	24 bit	16,777,216	`68:09:47:00:00:00`
`68:25:DD`	MA-L	24 bit	16,777,216	`68:25:DD:00:00:00`
`68:67:25`	MA-L	24 bit	16,777,216	`68:67:25:00:00:00`
`68:B6:B3`	MA-L	24 bit	16,777,216	`68:B6:B3:00:00:00`
`68:C6:3A`	MA-L	24 bit	16,777,216	`68:C6:3A:00:00:00`
`68:EE:8F`	MA-L	24 bit	16,777,216	`68:EE:8F:00:00:00`
`68:FE:71`	MA-L	24 bit	16,777,216	`68:FE:71:00:00:00`
`6C:B4:56`	MA-L	24 bit	16,777,216	`6C:B4:56:00:00:00`
`6C:C8:40`	MA-L	24 bit	16,777,216	`6C:C8:40:00:00:00`
`70:03:9F`	MA-L	24 bit	16,777,216	`70:03:9F:00:00:00`
`70:04:1D`	MA-L	24 bit	16,777,216	`70:04:1D:00:00:00`
`70:4B:CA`	MA-L	24 bit	16,777,216	`70:4B:CA:00:00:00`
`70:AF:09`	MA-L	24 bit	16,777,216	`70:AF:09:00:00:00`
`70:B8:F6`	MA-L	24 bit	16,777,216	`70:B8:F6:00:00:00`
`74:4D:BD`	MA-L	24 bit	16,777,216	`74:4D:BD:00:00:00`
`78:1C:3C`	MA-L	24 bit	16,777,216	`78:1C:3C:00:00:00`
`78:21:84`	MA-L	24 bit	16,777,216	`78:21:84:00:00:00`
`78:42:1C`	MA-L	24 bit	16,777,216	`78:42:1C:00:00:00`
`78:E3:6D`	MA-L	24 bit	16,777,216	`78:E3:6D:00:00:00`
`78:EE:4C`	MA-L	24 bit	16,777,216	`78:EE:4C:00:00:00`
`7C:0C:5F`	MA-L	24 bit	16,777,216	`7C:0C:5F:00:00:00`
`7C:2C:67`	MA-L	24 bit	16,777,216	`7C:2C:67:00:00:00`
`7C:4F:AD`	MA-L	24 bit	16,777,216	`7C:4F:AD:00:00:00`
`7C:73:98`	MA-L	24 bit	16,777,216	`7C:73:98:00:00:00`
`7C:87:CE`	MA-L	24 bit	16,777,216	`7C:87:CE:00:00:00`
`7C:9E:BD`	MA-L	24 bit	16,777,216	`7C:9E:BD:00:00:00`
`7C:DF:A1`	MA-L	24 bit	16,777,216	`7C:DF:A1:00:00:00`
`7C:E8:B1`	MA-L	24 bit	16,777,216	`7C:E8:B1:00:00:00`
`80:45:6B`	MA-L	24 bit	16,777,216	`80:45:6B:00:00:00`
`80:64:6F`	MA-L	24 bit	16,777,216	`80:64:6F:00:00:00`
`80:65:99`	MA-L	24 bit	16,777,216	`80:65:99:00:00:00`
`80:7D:3A`	MA-L	24 bit	16,777,216	`80:7D:3A:00:00:00`
`80:B5:4E`	MA-L	24 bit	16,777,216	`80:B5:4E:00:00:00`
`80:F1:B2`	MA-L	24 bit	16,777,216	`80:F1:B2:00:00:00`
`80:F3:DA`	MA-L	24 bit	16,777,216	`80:F3:DA:00:00:00`
`84:0D:8E`	MA-L	24 bit	16,777,216	`84:0D:8E:00:00:00`
`84:1F:E8`	MA-L	24 bit	16,777,216	`84:1F:E8:00:00:00`
`84:CC:A8`	MA-L	24 bit	16,777,216	`84:CC:A8:00:00:00`
`84:F3:EB`	MA-L	24 bit	16,777,216	`84:F3:EB:00:00:00`
`84:F7:03`	MA-L	24 bit	16,777,216	`84:F7:03:00:00:00`
`84:FC:E6`	MA-L	24 bit	16,777,216	`84:FC:E6:00:00:00`
`88:13:BF`	MA-L	24 bit	16,777,216	`88:13:BF:00:00:00`
`88:56:A6`	MA-L	24 bit	16,777,216	`88:56:A6:00:00:00`
`88:57:21`	MA-L	24 bit	16,777,216	`88:57:21:00:00:00`
`88:F1:55`	MA-L	24 bit	16,777,216	`88:F1:55:00:00:00`
`8C:4B:14`	MA-L	24 bit	16,777,216	`8C:4B:14:00:00:00`
`8C:4F:00`	MA-L	24 bit	16,777,216	`8C:4F:00:00:00:00`
`8C:8C:29`	MA-L	24 bit	16,777,216	`8C:8C:29:00:00:00`
`8C:94:DF`	MA-L	24 bit	16,777,216	`8C:94:DF:00:00:00`
`8C:AA:B5`	MA-L	24 bit	16,777,216	`8C:AA:B5:00:00:00`
`8C:BF:EA`	MA-L	24 bit	16,777,216	`8C:BF:EA:00:00:00`
`8C:CE:4E`	MA-L	24 bit	16,777,216	`8C:CE:4E:00:00:00`
`8C:FD:49`	MA-L	24 bit	16,777,216	`8C:FD:49:00:00:00`
`90:15:06`	MA-L	24 bit	16,777,216	`90:15:06:00:00:00`
`90:38:0C`	MA-L	24 bit	16,777,216	`90:38:0C:00:00:00`
`90:64:9B`	MA-L	24 bit	16,777,216	`90:64:9B:00:00:00`
`90:70:69`	MA-L	24 bit	16,777,216	`90:70:69:00:00:00`
`90:97:D5`	MA-L	24 bit	16,777,216	`90:97:D5:00:00:00`
`90:DA:72`	MA-L	24 bit	16,777,216	`90:DA:72:00:00:00`
`90:E5:B1`	MA-L	24 bit	16,777,216	`90:E5:B1:00:00:00`
`94:3C:C6`	MA-L	24 bit	16,777,216	`94:3C:C6:00:00:00`
`94:51:DC`	MA-L	24 bit	16,777,216	`94:51:DC:00:00:00`
`94:54:C5`	MA-L	24 bit	16,777,216	`94:54:C5:00:00:00`
`94:A9:90`	MA-L	24 bit	16,777,216	`94:A9:90:00:00:00`
`94:B5:55`	MA-L	24 bit	16,777,216	`94:B5:55:00:00:00`
`94:B9:7E`	MA-L	24 bit	16,777,216	`94:B9:7E:00:00:00`
`94:E6:86`	MA-L	24 bit	16,777,216	`94:E6:86:00:00:00`
`98:3D:AE`	MA-L	24 bit	16,777,216	`98:3D:AE:00:00:00`
`98:88:E0`	MA-L	24 bit	16,777,216	`98:88:E0:00:00:00`
`98:A3:16`	MA-L	24 bit	16,777,216	`98:A3:16:00:00:00`
`98:CD:AC`	MA-L	24 bit	16,777,216	`98:CD:AC:00:00:00`
`98:F4:AB`	MA-L	24 bit	16,777,216	`98:F4:AB:00:00:00`
`9C:13:9E`	MA-L	24 bit	16,777,216	`9C:13:9E:00:00:00`
`9C:9C:1F`	MA-L	24 bit	16,777,216	`9C:9C:1F:00:00:00`
`9C:9E:6E`	MA-L	24 bit	16,777,216	`9C:9E:6E:00:00:00`
`9C:CC:01`	MA-L	24 bit	16,777,216	`9C:CC:01:00:00:00`
`A0:20:A6`	MA-L	24 bit	16,777,216	`A0:20:A6:00:00:00`
`A0:76:4E`	MA-L	24 bit	16,777,216	`A0:76:4E:00:00:00`
`A0:85:E3`	MA-L	24 bit	16,777,216	`A0:85:E3:00:00:00`
`A0:A3:B3`	MA-L	24 bit	16,777,216	`A0:A3:B3:00:00:00`
`A0:B7:65`	MA-L	24 bit	16,777,216	`A0:B7:65:00:00:00`
`A0:DD:6C`	MA-L	24 bit	16,777,216	`A0:DD:6C:00:00:00`
`A0:F2:62`	MA-L	24 bit	16,777,216	`A0:F2:62:00:00:00`
`A4:7B:9D`	MA-L	24 bit	16,777,216	`A4:7B:9D:00:00:00`
`A4:CB:8F`	MA-L	24 bit	16,777,216	`A4:CB:8F:00:00:00`
`A4:CF:12`	MA-L	24 bit	16,777,216	`A4:CF:12:00:00:00`
`A4:E5:7C`	MA-L	24 bit	16,777,216	`A4:E5:7C:00:00:00`
`A4:F0:0F`	MA-L	24 bit	16,777,216	`A4:F0:0F:00:00:00`
`A8:03:2A`	MA-L	24 bit	16,777,216	`A8:03:2A:00:00:00`
`A8:42:E3`	MA-L	24 bit	16,777,216	`A8:42:E3:00:00:00`
`A8:46:74`	MA-L	24 bit	16,777,216	`A8:46:74:00:00:00`
`A8:48:FA`	MA-L	24 bit	16,777,216	`A8:48:FA:00:00:00`
`AC:0B:FB`	MA-L	24 bit	16,777,216	`AC:0B:FB:00:00:00`
`AC:15:18`	MA-L	24 bit	16,777,216	`AC:15:18:00:00:00`
`AC:27:6E`	MA-L	24 bit	16,777,216	`AC:27:6E:00:00:00`
`AC:67:B2`	MA-L	24 bit	16,777,216	`AC:67:B2:00:00:00`
`AC:A7:04`	MA-L	24 bit	16,777,216	`AC:A7:04:00:00:00`
`AC:D0:74`	MA-L	24 bit	16,777,216	`AC:D0:74:00:00:00`
`AC:EB:E6`	MA-L	24 bit	16,777,216	`AC:EB:E6:00:00:00`
`B0:3F:D3`	MA-L	24 bit	16,777,216	`B0:3F:D3:00:00:00`
`B0:81:84`	MA-L	24 bit	16,777,216	`B0:81:84:00:00:00`
`B0:A6:04`	MA-L	24 bit	16,777,216	`B0:A6:04:00:00:00`
`B0:A7:32`	MA-L	24 bit	16,777,216	`B0:A7:32:00:00:00`
`B0:B2:1C`	MA-L	24 bit	16,777,216	`B0:B2:1C:00:00:00`
`B0:CB:D8`	MA-L	24 bit	16,777,216	`B0:CB:D8:00:00:00`
`B4:3A:45`	MA-L	24 bit	16,777,216	`B4:3A:45:00:00:00`
`B4:8A:0A`	MA-L	24 bit	16,777,216	`B4:8A:0A:00:00:00`
`B4:BF:E9`	MA-L	24 bit	16,777,216	`B4:BF:E9:00:00:00`
`B4:E6:2D`	MA-L	24 bit	16,777,216	`B4:E6:2D:00:00:00`
`B8:1F:3F`	MA-L	24 bit	16,777,216	`B8:1F:3F:00:00:00`
`B8:7B:4D`	MA-L	24 bit	16,777,216	`B8:7B:4D:00:00:00`
`B8:D6:1A`	MA-L	24 bit	16,777,216	`B8:D6:1A:00:00:00`
`B8:F0:09`	MA-L	24 bit	16,777,216	`B8:F0:09:00:00:00`
`B8:F8:62`	MA-L	24 bit	16,777,216	`B8:F8:62:00:00:00`
`BC:DD:C2`	MA-L	24 bit	16,777,216	`BC:DD:C2:00:00:00`
`BC:FF:4D`	MA-L	24 bit	16,777,216	`BC:FF:4D:00:00:00`
`C0:49:EF`	MA-L	24 bit	16,777,216	`C0:49:EF:00:00:00`
`C0:4E:30`	MA-L	24 bit	16,777,216	`C0:4E:30:00:00:00`
`C0:5D:89`	MA-L	24 bit	16,777,216	`C0:5D:89:00:00:00`
`C0:CD:D6`	MA-L	24 bit	16,777,216	`C0:CD:D6:00:00:00`
`C4:4F:33`	MA-L	24 bit	16,777,216	`C4:4F:33:00:00:00`
`C4:5B:BE`	MA-L	24 bit	16,777,216	`C4:5B:BE:00:00:00`
`C4:D8:D5`	MA-L	24 bit	16,777,216	`C4:D8:D5:00:00:00`
`C4:DD:57`	MA-L	24 bit	16,777,216	`C4:DD:57:00:00:00`
`C4:DE:E2`	MA-L	24 bit	16,777,216	`C4:DE:E2:00:00:00`
`C8:2B:96`	MA-L	24 bit	16,777,216	`C8:2B:96:00:00:00`
`C8:2E:18`	MA-L	24 bit	16,777,216	`C8:2E:18:00:00:00`
`C8:85:41`	MA-L	24 bit	16,777,216	`C8:85:41:00:00:00`
`C8:C9:A3`	MA-L	24 bit	16,777,216	`C8:C9:A3:00:00:00`
`C8:F0:9E`	MA-L	24 bit	16,777,216	`C8:F0:9E:00:00:00`
`CC:50:E3`	MA-L	24 bit	16,777,216	`CC:50:E3:00:00:00`
`CC:7B:5C`	MA-L	24 bit	16,777,216	`CC:7B:5C:00:00:00`
`CC:8D:A2`	MA-L	24 bit	16,777,216	`CC:8D:A2:00:00:00`
`CC:BA:97`	MA-L	24 bit	16,777,216	`CC:BA:97:00:00:00`
`CC:DB:A7`	MA-L	24 bit	16,777,216	`CC:DB:A7:00:00:00`
`D0:CF:13`	MA-L	24 bit	16,777,216	`D0:CF:13:00:00:00`
`D0:EF:76`	MA-L	24 bit	16,777,216	`D0:EF:76:00:00:00`
`D4:05:92`	MA-L	24 bit	16,777,216	`D4:05:92:00:00:00`
`D4:8A:FC`	MA-L	24 bit	16,777,216	`D4:8A:FC:00:00:00`
`D4:8C:49`	MA-L	24 bit	16,777,216	`D4:8C:49:00:00:00`
`D4:D4:DA`	MA-L	24 bit	16,777,216	`D4:D4:DA:00:00:00`
`D4:E9:F4`	MA-L	24 bit	16,777,216	`D4:E9:F4:00:00:00`
`D4:F9:8D`	MA-L	24 bit	16,777,216	`D4:F9:8D:00:00:00`
`D8:13:2A`	MA-L	24 bit	16,777,216	`D8:13:2A:00:00:00`
`D8:3B:DA`	MA-L	24 bit	16,777,216	`D8:3B:DA:00:00:00`
`D8:85:AC`	MA-L	24 bit	16,777,216	`D8:85:AC:00:00:00`
`D8:A0:1D`	MA-L	24 bit	16,777,216	`D8:A0:1D:00:00:00`
`D8:BC:38`	MA-L	24 bit	16,777,216	`D8:BC:38:00:00:00`
`D8:BF:C0`	MA-L	24 bit	16,777,216	`D8:BF:C0:00:00:00`
`D8:F1:5B`	MA-L	24 bit	16,777,216	`D8:F1:5B:00:00:00`
`DC:06:75`	MA-L	24 bit	16,777,216	`DC:06:75:00:00:00`
`DC:1E:D5`	MA-L	24 bit	16,777,216	`DC:1E:D5:00:00:00`
`DC:4F:22`	MA-L	24 bit	16,777,216	`DC:4F:22:00:00:00`
`DC:54:75`	MA-L	24 bit	16,777,216	`DC:54:75:00:00:00`
`DC:B4:D9`	MA-L	24 bit	16,777,216	`DC:B4:D9:00:00:00`
`DC:DA:0C`	MA-L	24 bit	16,777,216	`DC:DA:0C:00:00:00`
`E0:5A:1B`	MA-L	24 bit	16,777,216	`E0:5A:1B:00:00:00`
`E0:72:A1`	MA-L	24 bit	16,777,216	`E0:72:A1:00:00:00`
`E0:8C:FE`	MA-L	24 bit	16,777,216	`E0:8C:FE:00:00:00`
`E0:98:06`	MA-L	24 bit	16,777,216	`E0:98:06:00:00:00`
`E0:E2:E6`	MA-L	24 bit	16,777,216	`E0:E2:E6:00:00:00`
`E4:65:B8`	MA-L	24 bit	16,777,216	`E4:65:B8:00:00:00`
`E4:B0:63`	MA-L	24 bit	16,777,216	`E4:B0:63:00:00:00`
`E4:B3:23`	MA-L	24 bit	16,777,216	`E4:B3:23:00:00:00`
`E8:06:90`	MA-L	24 bit	16,777,216	`E8:06:90:00:00:00`
`E8:31:CD`	MA-L	24 bit	16,777,216	`E8:31:CD:00:00:00`
`E8:3D:C1`	MA-L	24 bit	16,777,216	`E8:3D:C1:00:00:00`
`E8:68:E7`	MA-L	24 bit	16,777,216	`E8:68:E7:00:00:00`
`E8:6B:EA`	MA-L	24 bit	16,777,216	`E8:6B:EA:00:00:00`
`E8:9F:6D`	MA-L	24 bit	16,777,216	`E8:9F:6D:00:00:00`
`E8:DB:84`	MA-L	24 bit	16,777,216	`E8:DB:84:00:00:00`
`E8:F6:0A`	MA-L	24 bit	16,777,216	`E8:F6:0A:00:00:00`
`EC:62:60`	MA-L	24 bit	16,777,216	`EC:62:60:00:00:00`
`EC:64:C9`	MA-L	24 bit	16,777,216	`EC:64:C9:00:00:00`
`EC:94:CB`	MA-L	24 bit	16,777,216	`EC:94:CB:00:00:00`
`EC:C9:FF`	MA-L	24 bit	16,777,216	`EC:C9:FF:00:00:00`
`EC:DA:3B`	MA-L	24 bit	16,777,216	`EC:DA:3B:00:00:00`
`EC:E3:34`	MA-L	24 bit	16,777,216	`EC:E3:34:00:00:00`
`EC:FA:BC`	MA-L	24 bit	16,777,216	`EC:FA:BC:00:00:00`
`F0:08:D1`	MA-L	24 bit	16,777,216	`F0:08:D1:00:00:00`
`F0:16:1D`	MA-L	24 bit	16,777,216	`F0:16:1D:00:00:00`
`F0:24:F9`	MA-L	24 bit	16,777,216	`F0:24:F9:00:00:00`
`F0:9E:9E`	MA-L	24 bit	16,777,216	`F0:9E:9E:00:00:00`
`F0:F5:BD`	MA-L	24 bit	16,777,216	`F0:F5:BD:00:00:00`
`F4:12:FA`	MA-L	24 bit	16,777,216	`F4:12:FA:00:00:00`
`F4:2D:C9`	MA-L	24 bit	16,777,216	`F4:2D:C9:00:00:00`
`F4:65:0B`	MA-L	24 bit	16,777,216	`F4:65:0B:00:00:00`
`F4:CF:A2`	MA-L	24 bit	16,777,216	`F4:CF:A2:00:00:00`
`F8:5B:1B`	MA-L	24 bit	16,777,216	`F8:5B:1B:00:00:00`
`F8:B3:B7`	MA-L	24 bit	16,777,216	`F8:B3:B7:00:00:00`
`FC:01:2C`	MA-L	24 bit	16,777,216	`FC:01:2C:00:00:00`
`FC:B4:67`	MA-L	24 bit	16,777,216	`FC:B4:67:00:00:00`
`FC:E8:C0`	MA-L	24 bit	16,777,216	`FC:E8:C0:00:00:00`
`FC:F5:C4`	MA-L	24 bit	16,777,216	`FC:F5:C4:00:00:00`

关于 Espressif Inc. 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 Espressif Inc. 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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