Reference
Vendor database changelog.
Blocks recently added to this database, and blocks that have changed registered owner. Rebuilt once a day; current as of Oct 31, 2026.
Every date below is when macadress first observed that state, not an IEEE registration date. The IEEE feed carries no registration date, so this site can only report when one of its own sync runs first saw a given assignment or change. For a full, filterable history including changes reconstructed from historical records, this is the public slice of what the data sources page describes.
Ownership changes
A registered block whose organization name changed, or whose registrant asked IEEE to withhold or publish their name.
| First observed | Block | Change | Now / previously |
|---|---|---|---|
| Oct 17, 2026 | 0C:48:C6 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 5C:AA:A2 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 64:F6:4D |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | D8:49:BF |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 00:E0:EC |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 94:64:42 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 88:5A:23 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | DC:DA:4D |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | 34:AD:61 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 17, 2026 | B4:DB:91 |
Registered organization changed | Celestica Platform and Cloud Solution Malaysia Sdn Bhd was CELESTICA INC. |
| Oct 13, 2026 | 7C:97:63 |
Registered organization changed | ZF Friedrichshafen AG was Openmatics s.r.o. |
| Oct 8, 2026 | 00:90:DD |
Registered organization changed | FURUKAWA MIHARU SOLUTIONS CORPORATION was MIHARU COMMUNICATIONS Inc |
| Sep 26, 2026 | A0:C5:F2:A |
Registered organization changed | e2ip Technologies was Serious Integrated, Inc. |
| Sep 26, 2026 | 00:60:41 |
Registered organization changed | DTS INSIGHT Corporation was Yokogawa Digital Computer Corporation |
| Sep 26, 2026 | F8:55:4B |
Registered organization changed | Eagle Wireless Engineering Centre SDN BHD was WirelessMobility Engineering Centre SDN. BHD |
| Sep 26, 2026 | 00:00:64 |
Registered organization changed | DTS INSIGHT Corporation was Yokogawa Digital Computer Corporation |
| Sep 26, 2026 | D0:0A:AB |
Registered organization changed | DTS INSIGHT Corporation was Yokogawa Digital Computer Corporation |
| Sep 26, 2026 | 0C:16:6E |
Registered organization changed | Eagle Wireless Engineering Centre SDN BHD was WirelessMobility Engineering Centre SDN. BHD |
| Sep 26, 2026 | 00:1E:B8 |
Registered organization changed | ATLAS LINK INC. was Aloys, Inc |
| Sep 25, 2026 | 34:80:0D |
Registered organization changed | Marvell Semiconductors was Cavium Inc |
| Sep 23, 2026 | A0:02:4A:5 |
Registered organization changed | Dongguan Amsamotion Automation Technology Co.,Ltd. was Dongguan Amsamotion Automation Technology Co., Ltd |
| Sep 23, 2026 | 84:B3:86:D |
Registered organization changed | Dongguan Amsamotion Automation Technology Co.,Ltd. was Dongguan Amsamotion Automation Technology Co., Ltd |
| Sep 23, 2026 | BC:F9:F2 |
Registered organization changed | CJSC "STC "TEKO" was TEKO |
| Sep 21, 2026 | 4A:07:D6 |
Registered organization changed | IEEE 802.1 Working Group was IEEE 802.1 Chair |
| Sep 21, 2026 | FA:94:F1 |
Registered organization changed | IEEE 802.1 Working Group was IEEE 802.1 Chair |
| Sep 21, 2026 | 3A:A3:F8 |
Registered organization changed | IEEE 802.1 Working Group was IEEE 802.1 Chair |
| Sep 21, 2026 | CA:30:BF |
Registered organization changed | IEEE 802.1 Working Group was IEEE 802.1 Chair |
| Sep 21, 2026 | 00:80:C2 |
Registered organization changed | IEEE 802.1 Working Group was IEEE 802.1 Chair |
| Sep 21, 2026 | 00:1E:83 |
Registered organization changed | IEEE 802.1 Working Group was LAN/MAN Standards Association (LMSC) |
| Sep 20, 2026 | 8C:1F:64:F7:E |
Registered organization changed | Suzhou Deyi Automotive Electronics Co., Ltd. was Suzhou Deyi Automotive Electronice Co., Ltd. |
| Sep 20, 2026 | 00:12:0F |
Registered organization changed | IEEE 802.3 Working Group was IEEE 802.3 |
| Sep 13, 2026 | 8C:1F:64:5E:0 |
Registered organization changed | Everest Audio Labs was Audio Video Show Sp. z o.o. |
| Sep 9, 2026 | F4:97:9D:6 |
Registered organization changed | Camnex Innovations Private Limited was camnex innovation pvt ltd |
Recently added
Blocks a sync run saw in the IEEE registry for the first time.
Weekly archive
Each week's new registrations and ownership changes have their own page, and the same data is available as an RSS feed.
- Week of Oct 26, 2026 52 new blocks
- Week of Oct 19, 2026 70 new blocks
- Week of Oct 12, 2026 50 new blocks, 11 ownership changes
- Week of Oct 5, 2026 46 new blocks, 1 ownership change
- Week of Sep 28, 2026 65 new blocks
- Week of Sep 21, 2026 97 new blocks, 17 ownership changes
- Week of Sep 14, 2026 64 new blocks, 2 ownership changes
- Week of Sep 7, 2026 63 new blocks, 2 ownership changes
- Week of Aug 31, 2026 88 new blocks
- Week of Aug 24, 2026 59 new blocks
Each list is capped at its most recent entries. This is a convenience view of recent activity, not a complete audit trail: a block that changed hands more than once in a day, or before macadress began tracking it, may not appear here in full.