CID MAC address blocks

The IEEE CID registry carries 220 blocks covering 3.7 billion addresses across 215 organizations.

Blocks
220
Addresses
3.7 billion
Organizations
215
Countries
28
First observed
28 May 2017
Prefix Organization Country Addresses First observed
0A:2A:33DIGISTORUnited States16.8 million17 Oct 2020
0A:35:F2Integrated Technical Vision LtdUkraine16.8 million6 Feb 2024
0A:36:1CSmardiiUnited States16.8 million18 Oct 2020
0A:58:FBPurple WiFi LimitedUnited Kingdom16.8 million13 Nov 2025
0A:87:36IEEE 1901 Working GroupFrance16.8 million28 May 2017
0A:8E:62Delta Solutions LLCRussia16.8 million22 Dec 2021
0A:93:26Qorvo, Inc.United States16.8 million8 Nov 2025
0A:9E:66Distance Technologies LtdFinland16.8 million31 Jan 2026
0A:A2:3BVitex LLCUnited States16.8 million27 Jan 2023
0A:AB:8CMidwest Microwave Solutions Inc.United States16.8 million15 Feb 2024
0A:CD:8FCisco Systems NorwayNorway16.8 million12 Nov 2019
0A:D9:C4Craft Designs, IncUnited States16.8 million1 Apr 2022
0A:E4:71Caterpillar Inc.United States16.8 million10 Jun 2018
0A:E9:1BPADL Software Pty LtdAustralia16.8 million31 Oct 2023
0A:F9:9DFitipower Integrated TechnologyTaiwan16.8 million19 Dec 2024
1A:75:FBAUTOSARGermany16.8 million28 May 2017
1A:90:21Physical Security Interoperability AllianceUnited States16.8 million20 Oct 2023
1A:AF:53JSC Megapolis-telecom regionRussia16.8 million29 Jul 2025
1A:BB:FBUHD AllianceUnited States16.8 million16 Oct 2019
2A:0B:B8xFusion Digital Technologies Co., LimitedChina16.8 million8 Dec 2021
2A:15:97COTSWORKSUnited States16.8 million10 Jan 2025
2A:2F:83UplinkUnited States16.8 million9 Jul 2025
2A:2F:E2onway agSwitzerland16.8 million31 Oct 2025
2A:47:C9Code Construct Pty LtdAustralia16.8 million30 May 2025
2A:7F:76Wireless Broadband Alliance, IncSingapore16.8 million25 Mar 2025
2A:9F:EBAVnu AllianceUnited States16.8 million10 Aug 2023
2A:A1:39POINTGUARD, LLCUnited States16.8 million12 Jul 2020
2A:A1:47DISTRIBUCIONES CANTILEVERMexico16.8 million26 Oct 2023
2A:AC:53Wolfspyre LabsUnited States16.8 million27 Aug 2022
2A:BF:3FLinkplay Technology IncUnited States16.8 million17 Dec 2025
2A:DB:D7Vesper TechnologiesUnited Kingdom16.8 million13 Jul 2024
2A:EA:15Tibit CommunicationsUnited States16.8 million28 May 2017
2A:FD:6ACharter CommunicationsUnited States16.8 million28 May 2017
3A:02:92Video Electronics Standards AssociationUnited States16.8 million28 May 2017
3A:0E:75KEVCOM LLCUnited States16.8 million10 Nov 2022
3A:1E:C0GENESISUnited States16.8 million19 Jul 2024
3A:27:A5Wootware Computers (Pty) LtdSouth Africa16.8 million28 May 2026
3A:35:41Raspberry Pi (Trading) LtdUnited Kingdom16.8 million3 Dec 2019
3A:5A:27Shenzhen Longsys Electronics Co.,Ltd.China16.8 million20 May 2020
3A:5E:03Cirrus Data Solutions, IncUnited States16.8 million28 May 2017
3A:72:C2HUAWEI TECHNOLOGIES CO.,LTDChina16.8 million11 Mar 2023
3A:76:5DNewCoSemi(Beijing) Technology Co., LtdChina16.8 million7 Aug 2022
3A:78:CASoundTalks NVBelgium16.8 million13 Feb 2019
3A:79:6ELX Semicon co.,Ltd.South Korea16.8 million20 May 2022
3A:A3:F8IEEE 802.1 Working GroupUnited States16.8 million28 May 2017
3A:BA:37CirrentUnited States16.8 million28 May 2017
3A:C6:CFParakey ABSweden16.8 million1 Oct 2024
3A:CF:C5Quickline AGSwitzerland16.8 million26 Nov 2017
3A:F5:21Single DigitsUnited States16.8 million7 Sep 2018
4A:07:D6IEEE 802.1 Working GroupUnited States16.8 million28 May 2017
4A:15:40sas de la Halle aux FoursFrance16.8 million9 Dec 2021
4A:19:1BZigBee AllianceUnited States16.8 million28 May 2017
4A:59:09MIWA LOCK CO.,LTD.Japan16.8 million28 Mar 2025
4A:5A:6FApplied MaterialsUnited States16.8 million11 Mar 2018
4A:5A:A9GoCodeIT IncCanada16.8 million16 Aug 2022
4A:65:36m3connect GmbHGermany16.8 million9 Sep 2025
4A:67:04Reliable Robotics CorporationUnited States16.8 million28 Jan 2022
4A:68:8DShenzhen TCL New Technology Co., LtdChina16.8 million12 Jan 2023
4A:72:06CAIRE, Inc.United States16.8 million28 May 2017
4A:7F:74INTEC Inc.Japan16.8 million6 Apr 2019
4A:AD:CECODAN ARGUS AGSwitzerland16.8 million10 Sep 2021
4A:B4:7Bfaytech Tech. Co., Ltd.China16.8 million30 Jul 2026
4A:C0:3FWUHAN HIKSTORAGE TECHNOLOGY CO.,LTDChina16.8 million7 Sep 2018
4A:CA:3EZEUSSouth Korea16.8 million7 Sep 2019
4A:DA:10Emotiva Audio CorpUnited States16.8 million28 May 2017
4A:E0:3FChengdu Superxon Communication Technology Co., Ltd.China16.8 million16 Aug 2020
4A:E5:68leapioChina16.8 million5 Dec 2023
4A:ED:1DAstera Labs IncUnited States16.8 million13 Aug 2022
4A:F5:7DASAM e.V.Germany16.8 million8 Aug 2025
5A:03:BAWireless Broadband Alliance, IncSingapore16.8 million24 Apr 2020
5A:18:FFFiRa ConsortiumUnited States16.8 million29 May 2020
5A:55:ADDisruptive Cities SAPI DE CVMexico16.8 million27 Sep 2024
5A:6B:B4Xconn TechnologiesUnited States16.8 million29 May 2024
5A:73:CFGogo Business AviationUnited States16.8 million20 Oct 2023
5A:CB:D3Simaudio LtdCanada16.8 million12 Nov 2017
5A:E6:60nyantec GmbHGermany16.8 million28 May 2017
5A:ED:67GoldiLink Technology Corp.Taiwan16.8 million3 Feb 2024
6A:0E:20GeoFrenzy, IncUnited States16.8 million20 Aug 2017
6A:1F:6CiPass, Inc.United States16.8 million28 May 2017
6A:40:65Open Connectivity FoundationUnited States16.8 million18 Feb 2018
6A:5C:35Secrétariat général de la défense et de la sécurité nationaleFrance16.8 million12 Jan 2019
6A:61:EENanjing Etlchips Microelectronics Technology Co., LTDChina16.8 million4 Aug 2026
6A:62:1EDIFI ConsortiumUnited States16.8 million19 May 2022
6A:71:E6FuelCloudUnited States16.8 million6 May 2023
6A:73:7D25G Ethernet ConsortiumUnited States16.8 million28 May 2017
6A:8E:AFWaooDenmark16.8 million23 May 2021
6A:9D:A4Global Reach TechnologyUnited Kingdom16.8 million27 Apr 2019
6A:B6:F2Eli Technology IncCanada16.8 million8 Jul 2018
6A:B8:7AAcrosswavesSouth Korea16.8 million10 Jun 2025
6A:E6:4AS&O Electronics (Malaysia) Sdn. Bhd.Malaysia16.8 million28 May 2017
6A:E7:32UNIS-WDC Storage Co.,LtdChina16.8 million5 Mar 2021
7A:15:ECYatomi Techology(ZheJiang) Co.,LtdChina16.8 million6 Jun 2021
7A:35:EASHARP CorporationJapan16.8 million2 Dec 2020
7A:38:4EPROFIBUS Nutzerorganisation e.V.Germany16.8 million24 Aug 2022
7A:3F:8CSeagate Technology Thailand Ltd.Thailand16.8 million8 Jul 2022
7A:4B:A4Innostor Technology CorporationTaiwan16.8 million28 May 2017
7A:4B:F3DILON TECHNOLOGIESUnited States16.8 million30 Jul 2021
7A:4D:2FOpen Compute ProjectUnited States16.8 million23 Jun 2021
7A:84:F0McDowell Signal Processing, LLC (dba McDSP)United States16.8 million22 Feb 2019
7A:8D:D1TePS'EGSouth Korea16.8 million18 Jan 2024
7A:AB:77OrangeFrance16.8 million28 May 2017
7A:B2:30European Telecommunications Standards InstituteFrance16.8 million4 Aug 2026
7A:F9:55Relay, Inc.United States16.8 million31 Aug 2023
7A:FD:44Rosenberger Hochfrequenztechnik GmbH & Co. KGGermany16.8 million28 May 2017
8A:00:B0Eoptolink Technology Inc. Ltd,China16.8 million28 May 2017
8A:07:75HORYS TECHNOLOGIES LLCUnited States16.8 million30 Dec 2022
8A:0A:F7Montage Technology Co,.LTDChina16.8 million27 Aug 2021
8A:34:BCFiberworks ASNorway16.8 million28 May 2017
8A:4F:8BIrdetoNetherlands16.8 million25 Mar 2021
8A:7D:B3Evolv Technology, Inc.United States16.8 million9 Jun 2023
8A:85:2EKampr SystemsUnited States16.8 million14 Jul 2023
8A:94:ADNexgen A/SDenmark16.8 million1 Nov 2020
8A:A5:C1Ranovus USAUnited States16.8 million13 Aug 2017
8A:B3:DAHomePlug Powerline Alliance, Inc.United States16.8 million28 May 2017
8A:C7:2ERoku, Inc.United States16.8 million28 May 2017
8A:CB:A4ResideoUnited States16.8 million28 May 2017
8A:D2:0FPro Optix ABSweden16.8 million30 Nov 2022
8A:D8:5EGigaIO Networks, Inc.United States16.8 million15 Oct 2021
8A:DA:26Eleven Inc.United States16.8 million28 May 2017
8A:FB:16TeraByte, Inc.United States16.8 million9 Feb 2019
9A:1B:22InfoCore Co.,Ltd.China16.8 million28 May 2017
9A:56:4BCubix CorporationUnited States16.8 million28 May 2017
9A:5C:C3NuCOMM International Ltd.Taiwan16.8 million18 Jul 2026
9A:AD:CACredoUnited States16.8 million28 May 2017
9A:B2:F8SFF CommitteeUnited States16.8 million28 May 2017
9A:D2:63FirmTek, LLCUnited States16.8 million28 May 2017
AA:0F:85Yamaichi ElectronicsUnited States16.8 million28 May 2017
AA:14:6BIronWiFiUnited States16.8 million6 Aug 2022
AA:34:D4CDVI Wireless SpAItaly16.8 million10 Sep 2020
AA:38:C7Kaloom incCanada16.8 million28 May 2017
AA:42:5AGlobus MedicalUnited States16.8 million5 May 2026
AA:54:8BTintriUnited States16.8 million28 May 2017
AA:78:A3Dongguan Yiertek Co., LtdChina16.8 million5 Nov 2024
AA:DC:47Cachengo, Inc.United States16.8 million24 Nov 2020
AA:F0:19TransferJet Consortium Incorporated AssociationJapan16.8 million14 Jan 2022
BA:03:C6Schüco International KGGermany16.8 million20 Oct 2023
BA:07:DAInfinix mobility limitedHong Kong16.8 million18 Mar 2021
BA:2D:FCLINKWING(DONGGUAN)INTELLIGENT ELECTRONICS CO.,LTDChina16.8 million25 Oct 2024
BA:30:54George Wilson Industries LtdUnited Kingdom16.8 million28 May 2017
BA:41:59ANAPASS INC.South Korea16.8 million27 Nov 2018
BA:4D:EAEnvironexusAustralia16.8 million18 Jun 2019
BA:55:ECIEEE 802.15United States16.8 million28 May 2017
BA:59:2CGuglielmo S.r.l.Italy16.8 million29 Sep 2026
BA:63:12IDTECKSouth Korea16.8 million23 Oct 2021
BA:67:91Kandou Bus SASwitzerland16.8 million1 Jul 2022
BA:A2:D0Wireless Broadband Alliance, IncSingapore16.8 million20 Dec 2018
BA:C4:85Fraunhofer IISGermany16.8 million7 Feb 2019
BA:C8:C4Transponder & Reader Engineered Systems, IncUnited States16.8 million15 Jul 2022
BA:F2:1CISO/TC22/SC31Germany16.8 million19 Dec 2018
BA:FE:3ADENSO CORPORATIONJapan16.8 million22 Jul 2025
CA:04:5AOssia IncUnited States16.8 million3 Dec 2021
CA:08:3CWestern Digital Technologies, Inc.United States16.8 million5 Feb 2025
CA:12:5CMicrosoft CorporationUnited States16.8 million28 May 2017
CA:1E:45ASMedia Technology Inc.Taiwan16.8 million11 Sep 2021
CA:22:2BBeijing Puma Gear Power Equipment Co.,LtdChina16.8 million6 Jan 2024
CA:2B:5ESuzhou Motor-comm Electronic Technology Co.,LtdChina16.8 million3 Jan 2020
CA:30:BFIEEE 802.1 Working GroupUnited States16.8 million28 May 2017
CA:37:82Storbyte, Inc.United States16.8 million13 May 2020
CA:3E:A6Syng, Inc.United States16.8 million29 Oct 2022
CA:44:3EAllianz Technology SEGermany16.8 million25 Apr 2025
CA:44:6CCypress Computer Systems, Inc.United States16.8 million28 May 2017
CA:7D:DDEmOne (Thailand) Co.,Ltd.Thailand16.8 million16 Jun 2022
CA:8F:A5Advanced TS Migrations, CoUnited States16.8 million28 May 2017
CA:A5:27BobiFrance16.8 million1 Sep 2026
CA:C2:76Saab Seaeye LtdUnited Kingdom16.8 million10 Dec 2022
CA:C8:7EAllen Organ CompanyUnited States16.8 million28 May 2017
CA:E5:05MobilitieUnited States16.8 million28 May 2017
CA:F2:5BLexar Electronics(Shenzhen) Co.,Ltd.China16.8 million21 May 2020
CA:FA:E6Tianjin Ronghui microelectronics Technology Co., Ltd.China16.8 million10 Apr 2024
DA:0D:38Farpointe Data, Inc.United States16.8 million30 Sep 2018
DA:19:B3LG UplusSouth Korea16.8 million11 Mar 2023
DA:1C:21Sesam GmbHGermany16.8 million28 May 2017
DA:1E:56OSNexusUnited States16.8 million5 May 2022
DA:28:ECHG GenuineChina16.8 million28 May 2017
DA:2B:DDAT&T, Inc.United States16.8 million28 May 2017
DA:41:62Xperi CorporationUnited States16.8 million21 May 2019
DA:7D:2EDelta Computers LLC.Russia16.8 million29 Dec 2021
DA:9D:49Calix Inc.United States16.8 million18 Feb 2022
DA:A1:19Google, Inc.United States16.8 million28 May 2017
DA:C4:51TakaratomyJapan16.8 million27 Aug 2022
DA:C8:7DSE Development ABSweden16.8 million30 Sep 2018
DA:E6:D7NVM Express, Inc.United States16.8 million5 Nov 2022
DA:FF:6BTeam Precision Public Company LimitedThailand16.8 million28 May 2017
EA:11:5DAUTOVISION TECHNOLOGY INC.Taiwan16.8 million27 Sep 2019
EA:1E:D0ZIGPOS GmbHGermany16.8 million26 Apr 2022
EA:27:01ACCE Technology Corp.Taiwan16.8 million11 Jul 2023
EA:2A:DBLabs Network Industrie 4. 0 e.V.Germany16.8 million27 Nov 2019
EA:34:B4ThinkRF Inc.Canada16.8 million28 May 2017
EA:60:76CloudSimple, Inc.United States16.8 million22 Oct 2017
EA:8F:96Proficium, LLCUnited States16.8 million9 Jul 2024
EA:9F:B1Philips International B.V.Netherlands16.8 million28 May 2017
EA:B8:9BThread Group, Inc.United States16.8 million19 Apr 2019
EA:BC:04G3-PLC AllianceFrance16.8 million15 Mar 2020
EA:BE:A7Sonos, Inc.United States16.8 million26 Nov 2017
EA:DA:6EFUJIFILM Germany GmbHGermany16.8 million23 Oct 2024
EA:DD:88IEEE PES-PSRC Working Group H3, PC37.237United States16.8 million22 Oct 2017
EA:E0:D9Berk-tek LLCUnited States16.8 million28 May 2017
FA:00:E7Quantum Machines ltdIsrael16.8 million20 Jun 2023
FA:07:3ENBASE-T AllianceUnited States16.8 million28 May 2017
FA:0B:BCCENBelgium16.8 million29 Apr 2021
FA:14:66Allegion PLCUnited States16.8 million28 May 2017
FA:16:19trendytechChina16.8 million28 May 2017
FA:2E:E9OCA Alliance, Inc.United States16.8 million11 Jun 2017
FA:4C:77OCCITALINEFrance16.8 million28 May 2017
FA:55:6FSymbolicIOUnited States16.8 million28 May 2017
FA:61:0ELaboratory for Computational Sensing and Robotics, Johns Hopkins UniversityUnited States16.8 million28 May 2017
FA:63:E1Samsung Electronics (UK) LtdUnited Kingdom16.8 million28 May 2017
FA:66:73NELLS ELECTRONIC SYSTEMS (NES)India16.8 million13 Dec 2019
FA:7A:CBUltra Ethernet ConsortiumUnited States16.8 million15 Mar 2025
FA:7D:04Salience LabsUnited Kingdom16.8 million8 Sep 2025
FA:8D:93Runione Tech Co., LtdChina16.8 million11 Jun 2026
FA:93:05Panasonic Automotive Systems Co., Ltd.Japan16.8 million28 Feb 2026
FA:94:F1IEEE 802.1 Working GroupUnited States16.8 million28 May 2017
FA:BA:85APAT Optoelectronics Components Co., Ltd.China16.8 million4 Feb 2018
FA:D9:88Momentum Data SystemsUnited States16.8 million13 Sep 2019
FA:E1:90IN WIN DEVELOPMENT INC.Taiwan16.8 million28 May 2017
FA:E5:1ARSAE Labs IncUnited States16.8 million28 May 2017
FA:EB:6ExRAN.orgUnited States16.8 million15 Apr 2018
FA:EE:B6Shenzhen Jiahua Zhongli Technology Co., LTDChina16.8 million23 Mar 2024
FA:F9:C0RAID IncorporatedUnited States16.8 million28 May 2017

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