Reference

Vendor database changelog.

Blocks recently added to this database, and blocks that have changed registered owner. Rebuilt once a day; current as of Sep 10, 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
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.

First observed	Block	Type	Organization	Country
Sep 10, 2026	`CC:82:7B:C`	MA-M	RNL Technology(Shenzhen) Co., Ltd	China
Sep 10, 2026	`B4:67:3F`	MA-L	Shenzhen Shokz Co., Ltd.	China
Sep 10, 2026	`EC:D6:1B`	MA-L	Espressif Inc.	British Virgin Islands
Sep 10, 2026	`00:FB:4A`	MA-L	Espressif Inc.	British Virgin Islands
Sep 10, 2026	`A8:FD:07`	MA-L	Espressif Inc.	British Virgin Islands
Sep 10, 2026	`F8:43:EE`	MA-L	Espressif Inc.	British Virgin Islands
Sep 10, 2026	`98:87:CC`	MA-L	AltoBeam Inc.	China
Sep 9, 2026	`8C:1F:64:06:4`	MA-S	Cube Telecom Pvt Ltd	India
Sep 9, 2026	`8C:1F:64:37:3`	MA-S	Pin Kuan Technology Co., Ltd.	Taiwan
Sep 9, 2026	`8C:1F:64:44:C`	MA-S	Radi International CO., LTD.	Taiwan
Sep 9, 2026	`8C:1F:64:5C:8`	MA-S	WOTA Corp.	Japan
Sep 9, 2026	`8C:1F:64:90:0`	MA-S	AUTA COMUNICACIONES SL	Spain
Sep 9, 2026	`8C:1F:64:9E:3`	MA-S	E-Globaledge Corporation	Japan
Sep 9, 2026	`8C:1F:64:B7:0`	MA-S	Tesla Subsea Inc.	United States
Sep 9, 2026	`CC:82:7B:9`	MA-M	Ecotron Corporation	United States
Sep 9, 2026	`CC:82:7B:A`	MA-M	Converging Systems Inc.	United States
Sep 9, 2026	`1C:42:B8`	MA-L	Taicang T&W Electronics	China
Sep 9, 2026	`20:CC:73`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`68:7D:AC`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`94:B4:3A`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`9C:0A:B3`	MA-L	Vantiva USA LLC	United States
Sep 9, 2026	`BC:EB:E8`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`F0:E4:26`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`30:DE:52`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`40:67:92`	MA-L	Cisco Systems, Inc	United States
Sep 9, 2026	`40:98:E1`	MA-L	VusionGroup	Austria
Sep 9, 2026	`40:E7:67`	MA-L	Extreme Networks, Inc.	United States
Sep 9, 2026	`50:DD:AB`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`74:0C:2E`	MA-L	Cisco Systems, Inc	United States
Sep 9, 2026	`7C:86:57`	MA-L	GTWAVE	South Korea
Sep 9, 2026	`D8:1F:99`	MA-L	Hitron Technologies. Inc	Taiwan
Sep 9, 2026	`DC:5D:89`	MA-L	Cisco Systems, Inc	United States
Sep 9, 2026	`00:B5:C7`	MA-L	VusionGroup	Austria
Sep 9, 2026	`14:BA:A2`	MA-L	Extreme Networks, Inc.	United States
Sep 9, 2026	`D8:9D:13`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`54:59:A8`	MA-L	WUHAN JINGCHEN INTELLIGENT IDENTIFICATION TECHNOLOGY CO.,LTD	China
Sep 9, 2026	`5C:D1:9C`	MA-L	Fantasia Trading LLC	United States
Sep 9, 2026	`90:69:89`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`CC:82:7B`	MA-L	IEEE Registration Authority	United States
Sep 9, 2026	`20:26:80`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 9, 2026	`2C:A2:E5`	MA-L	Cisco Systems, Inc	United States
Sep 9, 2026	`B4:BE:56`	MA-L	Camnex Innovations Private Limited	India
Sep 5, 2026	`38:90:FE`	MA-L	New H3C Technologies Co., Ltd	China
Sep 5, 2026	`B0:52:1F`	MA-L	Dyson Limited	United Kingdom
Sep 5, 2026	`04:89:6D`	MA-L	New H3C Technologies Co., Ltd	China
Sep 5, 2026	`7C:17:95`	MA-L	New H3C Technologies Co., Ltd	China
Sep 5, 2026	`74:1B:13`	MA-L	New H3C Technologies Co., Ltd	China
Sep 4, 2026	`8C:1F:64:B1:2`	MA-S	Hongtai Intelligent Technology	China
Sep 4, 2026	`8C:1F:64:A8:D`	MA-S	Brightxcom	United States
Sep 4, 2026	`EC:BA:34:4`	MA-M	CITIZEN T.I.C. CO., LTD.	Japan
Sep 4, 2026	`EC:BA:34:8`	MA-M	Dongguan Neith Electronic Industry Co., LTD	China
Sep 4, 2026	`EC:BA:34:A`	MA-M	Shenzhen Yidao Intelligent Technology Co.,Ltd.	China
Sep 4, 2026	`EC:BA:34:E`	MA-M	Green ACS Sp. z o.o.	Poland
Sep 4, 2026	`14:A6:B9`	MA-L	Samsung Electronics Co.,Ltd	South Korea
Sep 4, 2026	`94:76:C3`	MA-L	FRITZ! Technology GmbH	Germany
Sep 4, 2026	`24:1F:3A`	MA-L	Silicon Laboratories	United States
Sep 4, 2026	`44:17:7A`	MA-L	IZT Cloud, Inc.	United States
Sep 4, 2026	`64:9E:F1`	MA-L	Texas Instruments	United States
Sep 4, 2026	`68:E5:D9`	MA-L	Fiberhome Telecommunication Technologies Co.,LTD	China
Sep 4, 2026	`B8:22:27`	MA-L	Texas Instruments	United States

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.