58,521 registered blocks.

🇺🇸 Roku, Inc. B8:A1:75:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. CC:6D:A0:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. D0:4D:2C:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. DC:3A:5E:00:00:00 /24 MA-L 🇯🇵 ROLAND DG CORPORATION 00:40:AB:00:00:00 /24 MA-L 🇮🇱 Rolbit 00:50:C2:94:10:00 /36 IAB 🇬🇧 ROLI Ltd. 48:B6:20:00:00:00 /24 MA-L 🇺🇸 Roll Systems Inc. 00:0C:52:00:00:00 /24 MA-L 🇱🇺 Rolling Wireless S.a.r.l. Luxembourg 28:EB:0A:00:00:00 /24 MA-L 🇫🇮 Rollock Oy BC:97:40:D0:00:00 /28 MA-M 🇭🇰 Rollogo Limited 70:B3:D5:C8:C0:00 /36 MA-S 🇺🇸 Rolls-Royce 00:0C:E2:00:00:00 /24 MA-L 🇺🇸 ROLM MIL-SPEC COMPUTERS 00:00:9C:00:00:00 /24 MA-L 🇩🇰 ROMO Wind A/S E4:1E:0A:D0:00:00 /28 MA-M 🇩🇰 ROMO Wind A/S 70:B3:D5:14:70:00 /36 MA-S 🇦🇺 Romteck Australia 70:B3:D5:39:40:00 /36 MA-S 🇦🇺 Romteck Australia 70:B3:D5:79:10:00 /36 MA-S 🇦🇺 Romteck Pty Ltd 00:50:C2:4E:30:00 /36 IAB 🇺🇸 ROMWin Co.,Ltd. 00:08:EB:00:00:00 /24 MA-L 🇷🇺 RON-Telecom ZAO 00:1B:26:00:00:00 /24 MA-L 🇺🇸 Ronan Engineering 00:50:C2:9C:E0:00 /36 IAB 🇨🇭 Rondo Burgdorf AG CC:D3:1E:10:00:00 /28 MA-M 🇨🇳 Rong Jie(FuZhou)Electronics Co.,Ltd 00:50:C2:F7:60:00 /36 IAB 🇹🇼 Rong Shun Xuan Corp. 00:50:C2:D9:80:00 /36 IAB 🇨🇴 Rong-Paisa Electronics Co., Ltd. 04:8F:00:00:00:00 /24 MA-L 🇨🇳 RONGCHEENG GOER TECHNOLOGY CO.,LTD. 0C:27:56:00:00:00 /24 MA-L 🇨🇳 RONGCHEENG GOER TECHNOLOGY CO.,LTD. 7C:A8:5D:00:00:00 /24 MA-L 🇰🇷 RONIX incorporated 78:C2:C0:20:00:00 /28 MA-M 🇨🇿 Ronyo Technologies s.r.o. 00:50:C2:B2:30:00 /36 IAB 🇺🇸 ROOFTOP COMMUNICATIONS CORP. 00:E0:0B:00:00:00 /24 MA-L 🇨🇳 Roog zhi tong Technology(Beijing) Co.,Ltd 8C:1F:64:29:60:00 /36 MA-S 🇨🇾 ROOMIO LIMITED 30:BB:28:20:00:00 /28 MA-M 🇳🇴 RoomMate AS CC:C2:61:80:00:00 /28 MA-M 🇳🇴 RoomMate AS 70:B3:D5:E1:C0:00 /36 MA-S 🇺🇸 RoomReady/Zdi, Inc. 64:FB:50:00:00:00 /24 MA-L 🇺🇸 Roost 4C:65:A8:30:00:00 /28 MA-M 🇺🇸 Root Automation 70:B3:D5:6A:20:00 /36 MA-S 🇯🇵 ROOT, INC. 00:D0:14:00:00:00 /24 MA-L 🇰🇷 Rootech, Inc. 34:97:6F:00:00:00 /24 MA-L 🇰🇷 Rootous System Co.,Ltd 6C:D6:30:00:00:00 /24 MA-L 🇰🇷 RootV 6C:2A:DF:70:00:00 /28 MA-M 🇩🇪 ROPEX Industrie-Elektronik GmbH B8:0B:9D:00:00:00 /24 MA-L 🇺🇸 Roqos, Inc. A8:C8:7F:00:00:00 /24 MA-L 🇯🇵 RORZE CORPORATION 90:47:16:00:00:00 /24 MA-L 🇺🇸 Rosco Entertainment Technology, Inc. 00:04:39:00:00:00 /24 MA-L 🇺🇸 Rosco, Inc F4:69:D5:70:00:00 /28 MA-M 🇩🇪 Rose + Herleth GbR 00:1B:C5:01:D0:00 /36 MA-S 🇺🇸 ROSE ELECTRONICS 00:40:A4:00:00:00 /24 MA-L 🇺🇸 Rose Technologies 00:50:C2:4B:90:00 /36 IAB 🇮🇱 Roseman Engineering Ltd 00:1F:4C:00:00:00 /24 MA-L 🇮🇱 Roseman Engineering Ltd. 00:50:C2:2C:90:00 /36 IAB 🇺🇸 Rosemount Analytical F8:02:78:B0:00:00 /28 MA-M 🇺🇸 Rosemount Analytical 40:D8:55:02:50:00 /36 IAB 🇺🇸 ROSEMOUNT CONTROLS 00:00:68:00:00:00 /24 MA-L 🇺🇸 Rosemount Inc. 00:26:16:00:00:00 /24 MA-L 🇺🇸 Rosemount Process Analytical 00:0A:AE:00:00:00 /24 MA-L 🇺🇸 Rosen Aviation 00:35:60:00:00:00 /24 MA-L 🇩🇪 Rosenberger Hochfrequenztechnik GmbH & Co. KG 7A:FD:44:00:00:00 /24 CID 🇨🇳 Rosenberger Technologies Co.,Ltd. 94:FB:A7:D0:00:00 /28 MA-M 🇩🇪 Rosendahl Studiotechnik GmbH 00:50:C2:91:D0:00 /36 IAB 🇺🇸 Rosenxt Technology USA 8C:1F:64:74:30:00 /36 MA-S 🇩🇰 RoseTechnology A/S 00:50:C2:63:20:00 /36 IAB 🇺🇸 Rosewill Inc. 68:1C:A2:00:00:00 /24 MA-L 🇺🇸 Roslen Eco-Networking Products 00:1B:C5:0B:10:00 /36 MA-S 🇹🇼 Rosonix Technology, Inc. F8:7A:EF:00:00:00 /24 MA-L 🇺🇸 Ross Controls 00:21:B3:00:00:00 /24 MA-L 🇺🇸 ROSS TECHNOLOGY, INC. 00:A0:39:00:00:00 /24 MA-L 🇨🇦 Ross Video Limited 00:0F:9B:00:00:00 /24 MA-L 🇨🇦 Ross Video Limited 00:50:C2:22:60:00 /36 IAB 🇨🇦 Ross Video Limited 00:50:C2:2C:E0:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited F8:BC:41:00:00:00 /24 MA-L 🇭🇰 Rosslare Enterprises Limited 00:50:C2:78:90:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 00:50:C2:B1:80:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 00:50:C2:E1:A0:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 00:50:C2:F3:70:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 40:D8:55:05:C0:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 40:D8:55:10:90:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 40:D8:55:1A:B0:00 /36 IAB 🇭🇰 Rosslare Enterprises Limited 70:B3:D5:68:20:00 /36 MA-S 🇭🇰 Rosslare Enterprises Ltd. 00:50:C2:D1:00:00 /36 IAB 🇷🇺 ROSSMA A8:3C:CB:00:00:00 /24 MA-L 🇷🇺 Rosta Ltd 00:50:C2:5B:10:00 /36 IAB 🇩🇪 ROTEC INDUSTRIEAUTOMATION GMBH 00:20:34:00:00:00 /24 MA-L 🇭🇰 ROTEK LLC 88:C3:B2:00:00:00 /24 MA-L 🇭🇰 Rotel 0C:EF:AF:90:00:00 /28 MA-M 🇹🇷 ROTEL TECHNOLOGIES 00:25:1E:00:00:00 /24 MA-L 🇮🇱 Rotem Industry LTD 70:B3:D5:B6:50:00 /36 MA-S 🇨🇭 ROTHARY Solutions AG 00:50:C2:5F:90:00 /36 IAB 🇬🇧 ROTORK INSTRUMENTS, LTD. 00:90:14:00:00:00 /24 MA-L 🇮🇹 Rototype S.p.A. 00:50:C2:28:90:00 /36 IAB 🇨🇭 ROTRONIC AG C8:8E:D1:20:00:00 /28 MA-M 🇯🇵 ROUND Co.,Ltd. 00:0C:B3:00:00:00 /24 MA-L 🇺🇸 Roush 70:B3:D5:65:B0:00 /36 MA-S 🇺🇸 RouteFree, Inc. 00:08:B6:00:00:00 /24 MA-L 🇺🇸 RouteFree, Inc. 00:50:C2:0E:60:00 /36 IAB 🇱🇻 Routerboard.com 00:0C:42:00:00:00 /24 MA-L 🇱🇻 Routerboard.com 04:F4:1C:00:00:00 /24 MA-L 🇱🇻 Routerboard.com 08:55:31:00:00:00 /24 MA-L 🇱🇻 Routerboard.com 18:FD:74:00:00:00 /24 MA-L 🇱🇻 Routerboard.com 2C:C8:1B:00:00:00 /24 MA-L