MAC Address Lookup
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Former Shenzhen C & D Electronics Co., Ltd. MAC address blocks

The IEEE registry once carried 31 blocks registered to Shenzhen C & D Electronics Co., Ltd.. All 31 blocks are now registered to Shanghai Kanghai Information System CO.,LTD.. Shanghai Kanghai Information System CO.,LTD. took over all of them.

Prefix Block Addresses First registered Organization
04:58:5D:EMA-M1 million29 May 2025Shanghai Kanghai Information System CO.,LTD.
04:A1:6F:0MA-M1 million19 Feb 2025Shanghai Kanghai Information System CO.,LTD.
04:EE:E8:7MA-M1 million11 Nov 2021Shanghai Kanghai Information System CO.,LTD.
0C:5C:B5:8MA-M1 million28 Jan 2021Shanghai Kanghai Information System CO.,LTD.
10:63:A3:8MA-M1 million3 Apr 2024Shanghai Kanghai Information System CO.,LTD.
18:C3:F4:DMA-M1 million2 Jun 2022Shanghai Kanghai Information System CO.,LTD.
34:46:63:9MA-M1 million21 May 2024Shanghai Kanghai Information System CO.,LTD.
34:C8:D6:EMA-M1 million18 Jan 2024Shanghai Kanghai Information System CO.,LTD.
38:A8:CD:7MA-M1 million10 Jul 2021Shanghai Kanghai Information System CO.,LTD.
48:5E:0E:0MA-M1 million18 Jul 2024Shanghai Kanghai Information System CO.,LTD.
54:A4:93:4MA-M1 million25 Jul 2019Shanghai Kanghai Information System CO.,LTD.
58:23:BC:4MA-M1 million31 Dec 2024Shanghai Kanghai Information System CO.,LTD.
58:47:CA:6MA-M1 million22 Jun 2022Shanghai Kanghai Information System CO.,LTD.
58:95:D8:8MA-M1 million26 Aug 2020Shanghai Kanghai Information System CO.,LTD.
64:62:66:7MA-M1 million19 Dec 2019Shanghai Kanghai Information System CO.,LTD.
6C:93:08:5MA-M1 million9 Jan 2022Shanghai Kanghai Information System CO.,LTD.
70:50:E7:0MA-M1 million19 Mar 2022Shanghai Kanghai Information System CO.,LTD.
78:13:05:9MA-M1 million22 Apr 2021Shanghai Kanghai Information System CO.,LTD.
78:39:2D:7MA-M1 million26 Oct 2023Shanghai Kanghai Information System CO.,LTD.
88:A6:EF:CMA-M1 million25 May 2023Shanghai Kanghai Information System CO.,LTD.
8C:AE:49:EMA-M1 million22 Oct 2020Shanghai Kanghai Information System CO.,LTD.
B0:47:5E:0MA-M1 million9 Oct 2024Shanghai Kanghai Information System CO.,LTD.
C0:48:2F:BMA-M1 million22 Aug 2024Shanghai Kanghai Information System CO.,LTD.
C4:98:94:7MA-M1 million27 Jul 2022Shanghai Kanghai Information System CO.,LTD.
C4:FF:BC:6MA-M1 million5 Nov 2017Shanghai Kanghai Information System CO.,LTD.
DC:76:C3:3MA-M1 million19 Apr 2025Shanghai Kanghai Information System CO.,LTD.
E0:23:3B:BMA-M1 million11 Aug 2025Shanghai Kanghai Information System CO.,LTD.
EC:74:CD:1MA-M1 million19 Nov 2024Shanghai Kanghai Information System CO.,LTD.
F4:20:55:AMA-M1 million18 Jun 2024Shanghai Kanghai Information System CO.,LTD.
F8:2B:E6:BMA-M1 million19 Mar 2025Shanghai Kanghai Information System CO.,LTD.
FC:E4:98:3MA-M1 million3 Jul 2025Shanghai Kanghai Information System CO.,LTD.

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