MAC Address Lookup
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EM Microelectronic MAC address blocks

The IEEE registry carries 76 blocks registered to EM Microelectronic, together 1.3 billion addresses, first observed 22 Dec 2010, most recently 29 Sep 2026.

Registered in CH.

Prefix Block Addresses Country First registered
04:9E:28MA-L16.8 millionCH29 Sep 2026
08:73:6FMA-L16.8 millionCH10 Jun 2025
08:CE:94MA-L16.8 millionCH19 Mar 2025
0C:F3:EEMA-L16.8 millionCH22 Dec 2010
10:9D:9CMA-L16.8 millionCH10 May 2023
18:32:19MA-L16.8 millionCH6 Dec 2020
28:E9:71MA-L16.8 millionCH2 Jul 2026
2C:AB:EEMA-L16.8 millionCH16 Mar 2026
2C:DC:C1MA-L16.8 millionCH10 Jun 2025
30:40:FAMA-L16.8 millionCH4 Sep 2026
34:5B:98MA-L16.8 millionCH8 Apr 2021
40:69:18MA-L16.8 millionCH30 May 2024
44:38:F3MA-L16.8 millionCH11 Aug 2025
44:45:20MA-L16.8 millionCH13 Apr 2026
44:D5:C1MA-L16.8 millionCH30 Mar 2023
48:83:6FMA-L16.8 millionCH27 Jul 2023
48:A1:7AMA-L16.8 millionCH4 Sep 2026
50:F2:22MA-L16.8 millionCH6 Jun 2023
58:35:0FMA-L16.8 millionCH20 Oct 2023
58:C3:56MA-L16.8 millionCH14 Jan 2022
5C:33:B1MA-L16.8 millionCH13 Oct 2025
5C:53:B4MA-L16.8 millionCH27 Jul 2023
5C:B2:60MA-L16.8 millionCH8 Nov 2023
60:2B:58MA-L16.8 millionCH10 May 2023
64:F5:4EMA-L16.8 millionCH16 Jul 2020
68:47:24MA-L16.8 millionCH30 Mar 2023
68:53:9DMA-L16.8 millionCH27 Apr 2022
68:D9:76MA-L16.8 millionCH22 Jan 2025
78:5F:28MA-L16.8 millionCH9 Aug 2023
7C:17:79MA-L16.8 millionCH29 Oct 2022
7C:5C:8DMA-L16.8 millionCH16 Mar 2026
80:65:59MA-L16.8 millionCH18 Feb 2021
84:CB:85MA-L16.8 millionCH30 May 2024
84:E5:85MA-L16.8 millionCH22 Jan 2025
88:8C:1BMA-L16.8 millionCH27 Mar 2024
88:DB:08MA-L16.8 millionCH13 Apr 2026
8C:08:3CMA-L16.8 millionCH2 May 2026
8C:61:20MA-L16.8 millionCH9 Aug 2023
8C:CD:55MA-L16.8 millionCH19 Mar 2025
8C:D6:7FMA-L16.8 millionCH16 Jul 2020
90:1A:4FMA-L16.8 millionCH9 Aug 2019
90:65:60MA-L16.8 millionCH27 Apr 2022
90:A7:BFMA-L16.8 millionCH8 Feb 2023
94:0B:FAMA-L16.8 millionCH19 Jan 2024
94:6C:04MA-L16.8 millionCH5 Sep 2024
98:75:96MA-L16.8 millionCH28 Jun 2024
A0:7E:16MA-L16.8 millionCH11 Aug 2025
A4:7E:36MA-L16.8 millionCH6 Dec 2020
AC:FC:E3MA-L16.8 millionCH22 Dec 2023
B0:95:01MA-L16.8 millionCH20 Jan 2026
B0:FA:91MA-L16.8 millionCH20 Oct 2023
B8:48:AAMA-L16.8 millionCH7 Mar 2020
BC:6E:6DMA-L16.8 millionCH14 Jan 2022
C0:49:BDMA-L16.8 millionCH27 Feb 2025
C0:D0:63MA-L16.8 millionCH8 Apr 2021
C8:F2:25MA-L16.8 millionCH8 Feb 2023
CC:19:66MA-L16.8 millionCH2 Jul 2026
CC:22:DFMA-L16.8 millionCH5 Sep 2024
D0:35:E5MA-L16.8 millionCH18 Feb 2021
D0:A9:D3MA-L16.8 millionCH29 Oct 2022
D8:F7:60MA-L16.8 millionCH22 Dec 2023
DC:CB:35MA-L16.8 millionCH2 May 2026
E0:18:9FMA-L16.8 millionCH7 Sep 2018
E0:31:5DMA-L16.8 millionCH13 Oct 2025
E0:C4:01MA-L16.8 millionCH29 Sep 2026
E4:64:47MA-L16.8 millionCH29 Oct 2024
EC:1B:FAMA-L16.8 millionCH27 Feb 2025
EC:3B:AFMA-L16.8 millionCH27 Mar 2024
EC:B0:D2MA-L16.8 millionCH6 Jun 2023
F0:6D:93MA-L16.8 millionCH20 Jan 2026
F0:86:6FMA-L16.8 millionCH8 Nov 2023
F4:6E:D6MA-L16.8 millionCH19 Jan 2024
F4:FB:F5MA-L16.8 millionCH28 Jun 2024
F8:05:84MA-L16.8 millionCH29 Oct 2024
FC:96:3EMA-L16.8 millionCH15 Sep 2025
FC:CF:9FMA-L16.8 millionCH15 Sep 2025

Every block registered to EM Microelectronic in the IEEE registries, complete. Free-text search also matches former owners.

Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.