3COM is a registered as a hardware vendor producing devices with MAC addresses according to the below table.
| MAC Prefix | Brand Name | Vendor Name |
|---|---|---|
| 00:01:02 | 3Com | 3Com |
| 00:20:AF | 3Com | 3Com |
| 00:26:54 | 3Com | 3Com |
| 00:50:DA | 3Com | 3Com |
| 00:60:08 | 3com | 3Com |
| 00:60:97 | 3Com | 3Com |
| 00:90:04 | 3com | 3com |
| 00:A0:24 | 3Com | 3Com |
| 00:D0:D8 | 3Com | 3Com |
| 00:0A:5E | 3Com | 3Com |
| 02:60:60 | 3com | 3com |
| 00:01:03 | 3Com | 3Com |
| 00:02:9C | 3Com | 3Com |
| 3C:00:00 | 3Com | 3Com |
| 00:04:75 | 3Com | 3Com |
| 00:04:76 | 3Com | 3Com |
| 02:C0:8C | 3Com | 3Com |
| 00:06:8C | 3Com | 3Com |
| 00:50:04 | 3com3c90 | 3com |
| 02:60:8C | 3comIbmP | 3Com |
| 00:10:4B | 3com3c90 | 3Com |
| 00:10:5A | 3comFast | 3Com |
| 00:1A:C1 | 3Com | 3Com Ltd |
| 00:0A:04 | 3Com | 3Com Ltd |
| 00:0D:54 | 3Com | 3Com Ltd |
| 00:0E:6A | 3Com | 3Com Ltd |
| 00:0F:CB | 3Com | 3Com Ltd |
| 00:0B:AC | 3Com | 3Com Ltd |
| 00:12:A9 | 3Com | 3Com Ltd |
| 00:14:7C | 3Com | 3Com Ltd |
| 00:16:E0 | 3Com | 3Com Ltd |
| 00:18:6E | 3Com | 3Com Ltd |
| 00:1C:C5 | 3Com | 3Com Ltd |
| MAC Prefix | Vendor / Company | Address | Country |
|---|---|---|---|
| 00-50-04 / 005004 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-01-03 / 000103 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 02-C0-8C / 02C08C | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-0A-5E / 000A5E | 3COM | 5400 Bayfront Plaza Santa Clara CA 95052-8145 | US |
| 00-10-5A / 00105A | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-60-97 / 006097 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-60-08 / 006008 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-01-02 / 000102 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-26-54 / 002654 | 3COM | 5353 Betsy Ross Drive Santa Clara 95054-1162 | US |
| 00-50-DA / 0050DA | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-04-76 / 000476 | 3COM | 5400 Bayfront Plaza Santa Clara CA 95052 | US |
| 00-04-75 / 000475 | 3COM | 5400 Bayfront Plaza Santa Clara CA 95052 | US |
| 00-60-8C / 00608C | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-A0-24 / 00A024 | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-20-AF / 0020AF | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-10-4B / 00104B | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-06-8C / 00068C | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 02-60-8C / 02608C | 3COM | 5400 BAYFRONT PLAZA SANTA CLARA CA 95052 | US |
| 00-D0-D8 / 00D0D8 | 3COM | 2133 LEGHORN STREET MOUNTAIN VIEW CA 94043 | US |
| 00-02-9C / 00029C | 3COM | 405 SPRING HILL ROAD SHARON NH 03458 | US |