17,372 blocks registered in United States.

🇺🇸 Omnitracs, LLC 40:A3:6B:30:00:00 /28 MA-M 🇺🇸 Omnitrol Networks, Inc. 00:50:C2:63:70:00 /36 IAB 🇺🇸 Omnitron Systems Technology, Inc. 00:06:87:00:00:00 /24 MA-L 🇺🇸 OMNITRONIX, INC. 00:10:A3:00:00:00 /24 MA-L 🇺🇸 OMNIVISION 8C:1F:64:38:70:00 /36 MA-S 🇺🇸 Omntec mfg. inc EC:E7:44:00:00:00 /24 MA-L 🇺🇸 OMS Motion 00:16:82:00:00:00 /24 MA-L 🇺🇸 ON Semiconductor 60:C0:BF:00:00:00 /24 MA-L 🇺🇸 ON Semiconductor F4:00:46:00:00:00 /24 MA-L 🇺🇸 On-Ramp Wireless, Inc. 00:25:0F:00:00:00 /24 MA-L 🇺🇸 OnAsset Intelligence 8C:1F:64:41:50:00 /36 MA-S 🇺🇸 ONAWHIM (OAW) INC. 58:47:CA:20:00:00 /28 MA-M 🇺🇸 Onclave Networks F0:2A:2B:40:00:00 /28 MA-M 🇺🇸 One Stop Systems 00:02:25:00:00:00 /24 MA-L 🇺🇸 ONE WORLD SYSTEMS, INC. 00:90:9A:00:00:00 /24 MA-L 🇺🇸 ONEAC CORPORATION 00:20:82:00:00:00 /24 MA-L 🇺🇸 OngCorp 00:0A:67:00:00:00 /24 MA-L 🇺🇸 ONICON 6C:47:80:70:00:00 /28 MA-M 🇺🇸 ONICON 8C:1F:64:70:B0:00 /36 MA-S 🇺🇸 Onity, Inc. 00:09:C2:00:00:00 /24 MA-L 🇺🇸 Onix Electronic Systems Inc 00:50:C2:B9:60:00 /36 IAB 🇺🇸 Onkey Technologies, Inc. 00:0F:BC:00:00:00 /24 MA-L 🇺🇸 Online Development Inc 00:0D:80:00:00:00 /24 MA-L 🇺🇸 OnLive, Inc 00:22:0A:00:00:00 /24 MA-L 🇺🇸 OnLogic Inc 30:CB:89:00:00:00 /24 MA-L 🇺🇸 ONPREM NETWORKS 00:30:77:00:00:00 /24 MA-L 🇺🇸 onsemi 44:9F:79:00:00:00 /24 MA-L 🇺🇸 Onset Computer Corporation 00:19:F7:00:00:00 /24 MA-L 🇺🇸 OnSite Systems, Inc. 00:13:5C:00:00:00 /24 MA-L 🇺🇸 ONStor, Inc. 00:07:34:00:00:00 /24 MA-L 🇺🇸 OnTarget Technologies, Inc 70:07:77:00:00:00 /24 MA-L 🇺🇸 Onto Innovation 8C:1F:64:FB:A0:00 /36 MA-S 🇺🇸 ONvocal Inc 38:29:DD:00:00:00 /24 MA-L 🇺🇸 Onward Brands D0:1B:BE:00:00:00 /24 MA-L 🇺🇸 ONX Inc. B4:A2:EB:20:00:00 /28 MA-M 🇺🇸 ONYX WIFI Inc EC:A5:DE:00:00:00 /24 MA-L 🇺🇸 Ooma, Inc. 00:18:61:00:00:00 /24 MA-L 🇺🇸 OOmon Inc. 00:10:15:00:00:00 /24 MA-L 🇺🇸 Opal Camera Inc. CC:E7:DE:A0:00:00 /28 MA-M 🇺🇸 Opal Camera Inc. 8C:1F:64:0C:10:00 /36 MA-S 🇺🇸 Opaque Systems 00:1E:6C:00:00:00 /24 MA-L 🇺🇸 OPCOM 00:40:35:00:00:00 /24 MA-L 🇺🇸 Opelcomm Inc. 00:0C:80:00:00:00 /24 MA-L 🇺🇸 Open Compute Project 7A:4D:2F:00:00:00 /24 CID 🇺🇸 Open Connectivity Foundation 6A:40:65:00:00:00 /24 CID 🇺🇸 Open Date Equipment Limited 00:50:C2:4C:E0:00 /36 IAB 🇺🇸 Open Grid Computing, Inc. 00:22:2F:00:00:00 /24 MA-L 🇺🇸 Open Interface North America 00:14:BB:00:00:00 /24 MA-L 🇺🇸 Open Mesh, Inc. AC:86:74:00:00:00 /24 MA-L 🇺🇸 Open Mesh, Inc. F8:D9:B8:00:00:00 /24 MA-L 🇺🇸 Open Networking Laboratory A4:23:05:00:00:00 /24 MA-L 🇺🇸 Open Source Robotics Foundation, Inc. A4:F3:C1:00:00:00 /24 MA-L 🇺🇸 Open Standard Digital-IF Interface for SATCOM Systems E0:DB:88:00:00:00 /24 MA-L 🇺🇸 Open Systems International 00:11:B6:00:00:00 /24 MA-L 🇺🇸 Open Video, Inc. 00:50:C2:80:B0:00 /36 IAB 🇺🇸 OpenAI 8C:20:F1:00:00:00 /24 MA-L 🇺🇸 OpenCon Systems, Inc. 00:50:A8:00:00:00 /24 MA-L 🇺🇸 Openeye 4C:91:7A:60:00:00 /28 MA-M 🇺🇸 Openeye C4:FF:84:A0:00:00 /28 MA-M 🇺🇸 OpenGear, Inc 00:13:C6:00:00:00 /24 MA-L 🇺🇸 OpenIB, Inc. 00:14:05:00:00:00 /24 MA-L 🇺🇸 Openpeak, Inc 80:C8:62:00:00:00 /24 MA-L 🇺🇸 Openpeak, Inc 00:1B:C5:02:10:00 /36 MA-S 🇺🇸 OpenPeak, Inc. 00:50:C2:4A:D0:00 /36 IAB 🇺🇸 Opentext 78:F7:A3:00:00:00 /24 MA-L 🇺🇸 OpenWrt 20:05:B6:00:00:00 /24 MA-L 🇺🇸 OPEX CORPORATION 04:C9:8B:70:00:00 /28 MA-M 🇺🇸 Ophir-Spiricon LLC 00:07:31:00:00:00 /24 MA-L 🇺🇸 Oplink Communications 00:50:C2:36:D0:00 /36 IAB 🇺🇸 OPPO Digital, Inc. 00:22:DE:00:00:00 /24 MA-L 🇺🇸 OptConnect 0C:CC:47:90:00:00 /28 MA-M 🇺🇸 Optec Displays, Inc. 00:24:79:00:00:00 /24 MA-L 🇺🇸 Opteon Corporation 00:07:A2:00:00:00 /24 MA-L 🇺🇸 Opthos Inc. 00:06:3E:00:00:00 /24 MA-L 🇺🇸 OPTI, INC. 00:30:07:00:00:00 /24 MA-L 🇺🇸 Opti-cell, Inc. 00:0D:95:00:00:00 /24 MA-L 🇺🇸 Opti-Sciences, Inc. 70:B3:D5:33:80:00 /36 MA-S 🇺🇸 Optica Technologies Inc. 00:16:0E:00:00:00 /24 MA-L 🇺🇸 OPTICAL ACCESS INTERNATIONAL 00:E0:65:00:00:00 /24 MA-L 🇺🇸 Optical Air Data Systems 00:50:C2:39:A0:00 /36 IAB 🇺🇸 Optical Communications Products Inc. 00:0A:1D:00:00:00 /24 MA-L 🇺🇸 Optical Internetworking Forum 00:0F:40:00:00:00 /24 MA-L 🇺🇸 Optical Network Testing, Inc. 00:06:E8:00:00:00 /24 MA-L 🇺🇸 OPTICAL NETWORKS, INC. 00:30:1F:00:00:00 /24 MA-L 🇺🇸 Optical Wireless Link Inc. 00:50:C2:18:50:00 /36 IAB 🇺🇸 Optical Zonu Corporation 00:08:EC:00:00:00 /24 MA-L 🇺🇸 Opticom Communication, LLC 44:C4:A9:00:00:00 /24 MA-L 🇺🇸 Opticom Communications, LLC 00:17:D0:00:00:00 /24 MA-L 🇺🇸 Opticomm Corporation 00:1C:95:00:00:00 /24 MA-L 🇺🇸 OPTIM SYSTEMS, INC. 00:90:C6:00:00:00 /24 MA-L 🇺🇸 OPTIMATION, INC. 00:50:8E:00:00:00 /24 MA-L 🇺🇸 Optimedical Systems 00:1C:E3:00:00:00 /24 MA-L 🇺🇸 OPTIMEM 00:40:EE:00:00:00 /24 MA-L 🇺🇸 OptiMight Communications, Inc. 00:03:9C:00:00:00 /24 MA-L 🇺🇸 Optinel Systems, Inc. 00:0F:FA:00:00:00 /24 MA-L 🇺🇸 OPTIQUEST 00:A0:E4:00:00:00 /24 MA-L 🇺🇸 OptiScan Biomedical Corp. 70:B3:D5:08:80:00 /36 MA-S 🇺🇸 OptiSense Network, LLC 28:41:21:00:00:00 /24 MA-L 🇺🇸 Optium Corporation 00:0E:52:00:00:00 /24 MA-L 🇺🇸 Optiview USA D8:5C:11:00:00:00 /24 MA-L