Espressif Inc.

Espressif Inc. accessible at espressif.com, manages 276 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 4.6 billion addresses.

The allocation includes the following types: MA-L (Mac Address Block Large, ~16 million addresses each).

The company registered its MAC address allocation on 11 March 2013, and the most recent update was made on 27 October 2025. These allocations support network identification and communication globally.

Unique prefixes: 276

Block Size: 4630511340 (4.63 G)

espressif.com

First registration: 11 March 2013

Last updated: 27 October 2025

Types

MA-L:Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

MAC PrefixTypeRegistration Date
00:4B:12 MA-L2025-02-20
00:70:07 MA-L2025-07-11
04:83:08 MA-L2024-10-29
08:3A:8D MA-L2022-07-27
08:3A:F2 MA-L2020-06-04
08:92:72 MA-L2025-07-11
08:A6:F7 MA-L2024-02-27
08:B6:1F MA-L2022-04-21
08:D1:F9 MA-L2023-04-24
08:F9:E0 MA-L2023-02-23
0C:4E:A0 MA-L2025-03-18
0C:8B:95 MA-L2022-01-20
0C:B8:15 MA-L2021-11-18
0C:DC:7E MA-L2020-05-14
10:00:3B MA-L2024-10-16
10:06:1C MA-L2023-06-30
10:20:BA MA-L2025-02-27
10:51:DB MA-L2025-01-23
10:52:1C MA-L2019-11-23
10:91:A8 MA-L2021-09-28
10:97:BD MA-L2021-08-20
10:B4:1D MA-L2025-04-23
14:08:08 MA-L2025-05-21
14:2B:2F MA-L2023-12-14
14:33:5C MA-L2024-12-30
18:8B:0E MA-L2023-12-28
18:FE:34 MA-L2013-03-11
1C:69:20 MA-L2024-03-18
1C:9D:C2 MA-L2021-06-04
1C:C3:AB MA-L2025-09-12
1C:DB:D4 MA-L2025-08-07
20:43:A8 MA-L2024-08-13
20:6E:F1 MA-L2025-06-07
20:E7:C8 MA-L2025-07-09
24:0A:C4 MA-L2016-05-23
24:4C:AB MA-L2021-11-24
24:58:7C MA-L2023-12-08
24:62:AB MA-L2019-02-25
24:6F:28 MA-L2019-01-09
24:A1:60 MA-L2020-05-14
24:B2:DE MA-L2017-04-18
24:D7:EB MA-L2021-06-22
24:DC:C3 MA-L2023-02-23
24:EC:4A MA-L2024-03-18
28:05:A5 MA-L2025-08-15
28:37:2F MA-L2024-09-27
28:56:2F MA-L2025-03-18
2C:3A:E8 MA-L2017-02-21
2C:BC:BB MA-L2024-03-06
2C:F4:32 MA-L2018-12-01
30:30:F9 MA-L2023-06-15
30:76:F5 MA-L2025-10-20
30:83:98 MA-L2021-02-03
30:AE:A4 MA-L2016-08-12
30:C6:F7 MA-L2021-08-13
30:C9:22 MA-L2023-08-23
30:ED:A0 MA-L2024-09-27
34:5F:45 MA-L2024-03-22
34:85:18 MA-L2022-04-14
34:86:5D MA-L2021-02-03
34:94:54 MA-L2021-09-22
34:98:7A MA-L2022-11-28
34:AB:95 MA-L2021-01-28
34:B4:72 MA-L2021-05-11
34:B7:DA MA-L2023-04-24
34:CD:B0 MA-L2024-05-10
38:18:2B MA-L2024-11-22
38:44:BE MA-L2025-10-27
3C:0F:02 MA-L2025-09-18
3C:61:05 MA-L2020-09-17
3C:71:BF MA-L2018-04-22
3C:84:27 MA-L2023-09-20
3C:8A:1F MA-L2024-08-13
3C:DC:75 MA-L2025-07-11
3C:E9:0E MA-L2022-04-08
40:22:D8 MA-L2022-04-21
40:4C:CA MA-L2022-12-07
40:91:51 MA-L2021-06-11
40:F5:20 MA-L2020-01-23
44:17:93 MA-L2021-05-29
44:1D:64 MA-L2025-03-25
48:27:E2 MA-L2022-04-14
48:31:B7 MA-L2023-02-16
48:3F:DA MA-L2019-11-23
48:55:19 MA-L2021-08-13
48:CA:43 MA-L2023-12-28
48:E7:29 MA-L2022-07-27
48:F6:EE MA-L2025-06-20
4C:11:AE MA-L2019-01-23
4C:75:25 MA-L2020-11-01
4C:C3:82 MA-L2025-04-23
4C:EB:D6 MA-L2021-06-22
50:02:91 MA-L2019-05-10
50:78:7D MA-L2025-02-20
54:32:04 MA-L2023-02-16
54:43:B2 MA-L2022-01-27
54:5A:A6 MA-L2015-12-03
58:8C:81 MA-L2024-11-22
58:BF:25 MA-L2021-06-04
58:CF:79 MA-L2021-10-05
58:E6:C5 MA-L2025-06-07
5C:01:3B MA-L2024-09-11
5C:CF:7F MA-L2015-11-17
60:01:94 MA-L2015-11-17
60:55:F9 MA-L2020-11-01
64:B7:08 MA-L2022-12-07
64:E8:33 MA-L2022-08-04
68:25:DD MA-L2025-01-23
68:67:25 MA-L2021-08-20
68:B6:B3 MA-L2022-01-22
68:C6:3A MA-L2017-07-01
68:FE:71 MA-L2025-06-20
6C:B4:56 MA-L2023-06-22
6C:C8:40 MA-L2025-03-08
70:03:9F MA-L2020-02-21
70:04:1D MA-L2021-11-30
70:4B:CA MA-L2025-10-27
70:B8:F6 MA-L2021-10-05
74:4D:BD MA-L2023-06-30
78:1C:3C MA-L2025-03-04
78:21:84 MA-L2021-09-22
78:42:1C MA-L2024-08-26
78:E3:6D MA-L2021-01-28
78:EE:4C MA-L2024-04-29
7C:2C:67 MA-L2024-05-03
7C:73:98 MA-L2023-06-22
7C:87:CE MA-L2021-04-20
7C:9E:BD MA-L2020-01-23
7C:DF:A1 MA-L2019-12-04
80:64:6F MA-L2022-05-11
80:65:99 MA-L2023-09-20
80:7D:3A MA-L2018-08-16
80:B5:4E MA-L2025-04-17
80:F1:B2 MA-L2025-07-09
80:F3:DA MA-L2025-04-17
84:0D:8E MA-L2018-01-28
84:1F:E8 MA-L2025-05-09
84:CC:A8 MA-L2020-02-27
84:F3:EB MA-L2018-01-28
84:F7:03 MA-L2021-04-29
84:FC:E6 MA-L2022-08-11
88:13:BF MA-L2024-03-22
88:56:A6 MA-L2025-08-15
88:57:21 MA-L2025-05-21
8C:4B:14 MA-L2021-06-11
8C:4F:00 MA-L2024-07-23
8C:AA:B5 MA-L2019-10-17
8C:BF:EA MA-L2024-07-03
8C:CE:4E MA-L2020-08-01
8C:FD:49 MA-L2025-10-27
90:15:06 MA-L2024-04-29
90:38:0C MA-L2021-08-05
90:70:69 MA-L2025-09-02
90:97:D5 MA-L2015-11-17
90:E5:B1 MA-L2025-03-04
94:3C:C6 MA-L2021-01-22
94:51:DC MA-L2025-05-30
94:54:C5 MA-L2024-06-10
94:A9:90 MA-L2024-10-16
94:B5:55 MA-L2021-11-30
94:B9:7E MA-L2020-08-01
94:E6:86 MA-L2021-11-24
98:3D:AE MA-L2024-06-19
98:88:E0 MA-L2024-12-30
98:A3:16 MA-L2025-02-27
98:CD:AC MA-L2021-01-15
98:F4:AB MA-L2019-07-02
9C:13:9E MA-L2025-05-30
9C:9C:1F MA-L2020-11-12
9C:9E:6E MA-L2024-03-12
A0:20:A6 MA-L2016-04-01
A0:76:4E MA-L2020-07-23
A0:85:E3 MA-L2024-07-12
A0:A3:B3 MA-L2022-11-28
A0:B7:65 MA-L2022-03-15
A0:DD:6C MA-L2023-12-14
A4:7B:9D MA-L2017-04-18
A4:CF:12 MA-L2018-12-08
A4:E5:7C MA-L2020-11-12
A4:F0:0F MA-L2025-09-02
A8:03:2A MA-L2020-06-04
A8:42:E3 MA-L2022-04-08
A8:46:74 MA-L2025-03-25
A8:48:FA MA-L2021-04-20
AC:0B:FB MA-L2021-05-11
AC:15:18 MA-L2024-02-27
AC:67:B2 MA-L2020-02-21
AC:A7:04 MA-L2025-10-20
AC:D0:74 MA-L2014-10-25
AC:EB:E6 MA-L2025-09-12
B0:81:84 MA-L2024-06-19
B0:A6:04 MA-L2025-09-12
B0:A7:32 MA-L2022-12-14
B0:B2:1C MA-L2022-12-14
B0:CB:D8 MA-L2025-09-18
B4:3A:45 MA-L2024-10-29
B4:8A:0A MA-L2022-04-01
B4:E6:2D MA-L2017-10-11
B8:D6:1A MA-L2022-01-20
B8:F0:09 MA-L2020-02-27
B8:F8:62 MA-L2025-03-08
BC:DD:C2 MA-L2017-12-11
BC:FF:4D MA-L2021-01-22
C0:49:EF MA-L2021-12-07
C0:4E:30 MA-L2022-04-01
C0:5D:89 MA-L2024-05-10
C0:CD:D6 MA-L2025-07-09
C4:4F:33 MA-L2018-06-13
C4:5B:BE MA-L2021-01-15
C4:D8:D5 MA-L2023-12-21
C4:DD:57 MA-L2020-07-23
C4:DE:E2 MA-L2022-01-22
C8:2B:96 MA-L2019-05-20
C8:2E:18 MA-L2023-06-08
C8:C9:A3 MA-L2021-05-29
C8:F0:9E MA-L2022-02-02
CC:50:E3 MA-L2018-03-02
CC:7B:5C MA-L2023-11-10
CC:8D:A2 MA-L2023-12-08
CC:BA:97 MA-L2024-08-26
CC:DB:A7 MA-L2022-03-15
D0:CF:13 MA-L2025-05-09
D0:EF:76 MA-L2023-12-21
D4:8A:FC MA-L2023-06-02
D4:8C:49 MA-L2024-07-03
D4:D4:DA MA-L2022-08-11
D4:E9:F4 MA-L2025-08-07
D4:F9:8D MA-L2021-09-28
D8:13:2A MA-L2023-08-23
D8:3B:DA MA-L2024-05-03
D8:85:AC MA-L2025-08-15
D8:A0:1D MA-L2017-05-24
D8:BC:38 MA-L2023-04-14
D8:BF:C0 MA-L2019-07-02
D8:F1:5B MA-L2019-03-07
DC:06:75 MA-L2024-09-04
DC:1E:D5 MA-L2024-09-04
DC:4F:22 MA-L2017-08-20
DC:54:75 MA-L2022-02-02
DC:B4:D9 MA-L2025-06-20
DC:DA:0C MA-L2023-06-15
E0:5A:1B MA-L2022-05-11
E0:72:A1 MA-L2025-10-20
E0:8C:FE MA-L2025-08-07
E0:98:06 MA-L2019-09-11
E0:E2:E6 MA-L2020-09-05
E4:65:B8 MA-L2023-06-02
E4:B0:63 MA-L2024-03-12
E4:B3:23 MA-L2024-07-23
E8:06:90 MA-L2024-03-28
E8:31:CD MA-L2021-11-18
E8:68:E7 MA-L2020-09-17
E8:6B:EA MA-L2023-06-08
E8:9F:6D MA-L2021-08-05
E8:DB:84 MA-L2020-09-05
E8:F6:0A MA-L2025-09-02
EC:62:60 MA-L2022-01-27
EC:64:C9 MA-L2023-11-02
EC:94:CB MA-L2021-04-29
EC:C9:FF MA-L2024-03-06
EC:DA:3B MA-L2022-08-04
EC:E3:34 MA-L2024-12-17
EC:FA:BC MA-L2017-08-04
F0:08:D1 MA-L2019-12-04
F0:24:F9 MA-L2024-06-10
F0:9E:9E MA-L2024-03-28
F0:F5:BD MA-L2023-11-02
F4:12:FA MA-L2021-12-07
F4:2D:C9 MA-L2025-09-18
F4:65:0B MA-L2024-09-11
F4:CF:A2 MA-L2019-09-11
F8:B3:B7 MA-L2024-07-12
FC:01:2C MA-L2024-12-17
FC:B4:67 MA-L2023-04-14
FC:E8:C0 MA-L2023-11-10
FC:F5:C4 MA-L2019-10-17