58,455 registered blocks.

🇬🇧 Marine Entertainment Systems Ltd 00:50:C2:B1:00:00 /36 IAB 🇪🇸 MARINE INSTRUMENTS, S.A. 70:B3:D5:93:10:00 /36 MA-S 🇺🇸 Marine Sonic Technology, Ltd. 00:1D:E7:00:00:00 /24 MA-L 🇺🇸 MARINER NETWORKS 00:50:39:00:00:00 /24 MA-L 🇺🇸 Marinesync Corp 2C:3C:05:00:00:00 /24 MA-L 🇮🇹 Marini Impianti Industriali s.r.l. 98:F8:DB:00:00:00 /24 MA-L 🇫🇮 Marioff Corporation Oy 70:B3:D5:22:20:00 /36 MA-S 🇮🇱 Maris Tech Ltd. 8C:1F:64:CB:B0:00 /36 MA-S 🇨🇦 Mark IV IDS Corp. 00:50:C2:52:20:00 /36 IAB 🇺🇸 Mark of the Unicorn, Inc. 00:01:F2:00:00:00 /24 MA-L 🇬🇧 Mark Roberts Motion Control 8C:1F:64:2E:20:00 /36 MA-S 🇩🇪 Mark-O-Print GmbH 00:50:C2:A6:50:00 /36 IAB 🇺🇸 MARKEM Corporation 00:0A:55:00:00:00 /24 MA-L 🇸🇪 MARKEM-IMAJE 00:90:9B:00:00:00 /24 MA-L 🇺🇸 Market Central, Inc. 00:06:57:00:00:00 /24 MA-L 🇺🇸 Marketaxess Corporation 48:B2:53:00:00:00 /24 MA-L 🇹🇼 Marketech International Corp. 0C:B4:59:00:00:00 /24 MA-L 🇰🇷 MARKIN co., Ltd. 98:BF:F4:00:00:00 /24 MA-L 🇯🇵 Marking System Technology Co., Ltd. 6C:38:38:00:00:00 /24 MA-L 🇰🇷 Markone technology Co., Ltd. C8:8D:D4:00:00:00 /24 MA-L 🇺🇸 Markov Corporation EC:36:3F:00:00:00 /24 MA-L 🇰🇷 MARKT Co., Ltd F4:97:9D:A0:00:00 /28 MA-M 🇸🇰 MARKUS LABS 70:B3:D5:F6:50:00 /36 MA-S 🇨🇭 MARLI S.A. 00:00:9E:00:00:00 /24 MA-L 🇪🇬 Marmitek 74:19:F8:00:00:00 /28 MA-M 🇪🇬 Marmitek BV 40:D8:55:0F:A0:00 /36 IAB 🇺🇸 MARNER INTERNATIONAL, INC. 00:40:E1:00:00:00 /24 MA-L 🇮🇹 Marposs S.p.A 40:D8:55:14:E0:00 /36 IAB 🇮🇹 MARPOSS SPA 3C:39:E7:E0:00:00 /28 MA-M 🇮🇹 Marposs SPA 00:50:C2:53:C0:00 /36 IAB 🇺🇸 MarqMetrix C0:A1:A2:00:00:00 /24 MA-L 🇺🇸 Marquardt 04:AE:C7:00:00:00 /24 MA-L 🇨🇳 Marquardt Electronics Technology (Shanghai) Co.Ltd F4:A1:7F:00:00:00 /24 MA-L 🇩🇪 Marquardt GmbH 70:2F:86:00:00:00 /24 MA-L 🇮🇳 Marquardt India Pvt Ltd 78:A4:BA:00:00:00 /24 MA-L 🇷🇴 Marquardt Schaltsysteme SCS AC:DB:22:00:00:00 /24 MA-L 🇵🇹 Marques,S.A. 70:B3:D5:64:30:00 /36 MA-S 🇺🇸 MARQUETTE ELECTRIC CO. 00:00:A1:00:00:00 /24 MA-L 🇺🇸 MARQUIP, INC. 00:A0:5B:00:00:00 /24 MA-L 🇨🇳 MARS DIGI TECH CO .,LTD 58:20:8A:20:00:00 /28 MA-M 🇯🇵 Marshal Corporation 1C:E1:65:00:00:00 /24 MA-L 🇺🇸 Marshall Electronics 00:23:A8:00:00:00 /24 MA-L 🇹🇼 Marson Technology Co., Ltd. 8C:1F:64:23:50:00 /36 MA-S 🇹🇼 Marssun 38:B1:4E:20:00:00 /28 MA-M 🇬🇧 MART NETWORK SOLUTIONS LTD 70:B3:D5:94:F0:00 /36 MA-S 🇬🇧 MART NETWORK SOLUTIONS LTD 70:B3:D5:AB:E0:00 /36 MA-S 🇮🇹 Martec Marine S.p.a. 8C:1F:64:4A:90:00 /36 MA-S 🇮🇹 Martec S.p.A. 70:B3:D5:1F:50:00 /36 MA-S 🇮🇹 Martec S.p.A. 8C:1F:64:A7:10:00 /36 MA-S 🇪🇪 Martem AS 3C:39:E7:80:00:00 /28 MA-M 🇩🇪 Martin Christ GmbH 00:21:DF:00:00:00 /24 MA-L 🇺🇸 MARTIN MARIETTA CORPORATION 00:40:EB:00:00:00 /24 MA-L 🇩🇰 Martin Professional A/S 00:03:43:00:00:00 /24 MA-L 🇨🇦 MARTINHO-DAVIS SYSTEMS, INC. 00:10:BA:00:00:00 /24 MA-L 🇺🇸 MartinLogan, Ltd. B0:FD:0B:B0:00:00 /28 MA-M 🇸🇪 Martinsson Elektronik AB 00:1F:68:00:00:00 /24 MA-L 🇰🇷 Marusys 00:1D:EC:00:00:00 /24 MA-L 🇮🇳 MARVAUS TECHNOLOGIES PRIVATE LIMITED 8C:1F:64:44:70:00 /36 MA-S 🇭🇰 Marvel Digital International Limited 00:1B:C5:04:50:00 /36 MA-S 🇺🇸 MARVELL SEMICONDUCTOR, INC. 00:50:43:00:00:00 /24 MA-L 🇺🇸 Marvell Semiconductors 50:27:E4:00:00:00 /24 MA-L 🇺🇸 Marvell Semiconductors F4:C7:AA:00:00:00 /24 MA-L 🇩🇪 MAS Elektronik AG 00:CD:90:00:00:00 /24 MA-L 🇮🇹 MAS Elettronica sas di Mascetti Sandro e C. 70:B3:D5:4F:B0:00 /36 MA-S 🇮🇳 MAS TECHNOLOGY 8C:1F:64:BD:F0:00 /36 MA-S 🇩🇪 Maschinenfabrik Reinhausen GmbH 00:08:87:00:00:00 /24 MA-L 🇺🇸 Maschoff Design Engineering 00:02:EC:00:00:00 /24 MA-L 🇺🇸 Masimo Corp 08:09:B6:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation 50:4A:5E:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation 88:09:AF:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation B8:10:D4:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation C8:16:A5:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation C8:8B:E8:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation E0:C2:B7:00:00:00 /24 MA-L 🇺🇸 Masimo Corporation C0:22:F1:E0:00:00 /28 MA-M 🇯🇵 MASPRO DENKOH CORP. 00:50:C9:00:00:00 /24 MA-L 🇦🇺 Mass Electronics Pty Ltd 08:26:AE:E0:00:00 /28 MA-M 🇺🇸 Massachusetts Institute of Technology 8C:1F:64:8A:80:00 /36 MA-S 🇺🇸 Massana, Inc. 00:07:EA:00:00:00 /24 MA-L 🇨🇭 Massar Networks 8C:1F:64:FA:A0:00 /36 MA-S 🇺🇸 MASSCOMP 08:00:6E:00:00:00 /24 MA-L 🇩🇪 Massive Beams GmbH E8:F6:D7:60:00:00 /28 MA-M 🇨🇦 Masstech Group Inc. 00:09:5E:00:00:00 /24 MA-L 🇰🇷 MASTER CO LTD 00:50:C2:B0:20:00 /36 IAB 🇸🇪 Master Industrialization Center Kista 00:1E:DF:00:00:00 /24 MA-L 🇺🇸 Master Meter Inc. 70:B3:D5:A9:F0:00 /36 MA-S 🇺🇸 Masterclock, Inc. 00:21:32:00:00:00 /24 MA-L 🇺🇸 Masterclock, Inc. 00:50:C2:16:B0:00 /36 IAB 🇰🇷 MasterImage 3D 74:8F:1B:00:00:00 /24 MA-L 🇫🇷 Masternaut 00:23:F4:00:00:00 /24 MA-L 🇹🇼 Masterwork Automodules A4:2C:08:00:00:00 /24 MA-L 🇺🇸 Mastodon Design 20:85:93:90:00:00 /28 MA-M 🇰🇷 MAT Co., Ltd. 00:06:E0:00:00:00 /24 MA-L 🇬🇷 MAT S.A. (Mircrelec Advanced Technology) 00:0E:6E:00:00:00 /24 MA-L 🇩🇪 MatchX GmbH CC:4F:5C:20:00:00 /28 MA-M 🇩🇪 MatchX GmbH 70:B3:D5:1C:B0:00 /36 MA-S 🇮🇱 Mate Media Access Technologies 00:50:C2:69:20:00 /36 IAB 🇺🇸 MATELEX 00:50:C2:FB:10:00 /36 IAB 🇫🇷 MATELEX 70:B3:D5:37:20:00 /36 MA-S 🇫🇷 MATELEX 8C:1F:64:90:90:00 /36 MA-S