17,386 blocks registered in United States.

🇺🇸 Unitron Company, Inc. 00:1E:5B:00:00:00 /24 MA-L 🇺🇸 Unity Surveillance, Inc. 58:95:D8:40:00:00 /28 MA-M 🇺🇸 UNIVATION 08:00:49:00:00:00 /24 MA-L 🇺🇸 Universal Audio, Inc FC:44:63:00:00:00 /24 MA-L 🇺🇸 UNIVERSAL AVIONICS 00:90:95:00:00:00 /24 MA-L 🇺🇸 Universal Control Solution Corp. 00:05:79:00:00:00 /24 MA-L 🇺🇸 UNIVERSAL DATA SYSTEMS 00:C0:D8:00:00:00 /24 MA-L 🇺🇸 Universal Devices Inc. 00:21:B9:00:00:00 /24 MA-L 🇺🇸 Universal Electric Corporation 58:2F:42:00:00:00 /24 MA-L 🇺🇸 Universal Electric Corporation D8:24:77:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 00:1C:FD:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 00:CC:3F:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 18:51:11:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 1C:41:90:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 1C:54:9E:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 20:9E:79:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 20:E7:B6:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 30:F9:4B:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 40:B3:1E:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 48:D0:CF:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 4C:AB:F3:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 50:61:F6:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 68:88:A1:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 70:91:F3:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 8C:3A:7E:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 94:0D:2D:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. 9C:AC:6D:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. AC:EB:51:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. B4:CB:B8:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. B8:C0:65:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. B8:E3:EE:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. B8:F2:55:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. C8:D8:84:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. D4:95:8E:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. E4:A6:34:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. E8:0F:C8:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. EC:47:0C:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. F0:B3:1E:00:00:00 /24 MA-L 🇺🇸 Universal Electronics, Inc. F4:93:1C:00:00:00 /24 MA-L 🇺🇸 Universal Flow Monitors, Inc. 34:99:D7:00:00:00 /24 MA-L 🇺🇸 Universal Instruments Corp. 00:06:A9:00:00:00 /24 MA-L 🇺🇸 Universal Laser Systems, Inc 54:D1:B0:00:00:00 /24 MA-L 🇺🇸 Universal Remote Control, Inc. 00:1F:B8:00:00:00 /24 MA-L 🇺🇸 Universal Switching Corporation 00:0D:A6:00:00:00 /24 MA-L 🇺🇸 Universal Talkware Corporation 00:01:1C:00:00:00 /24 MA-L 🇺🇸 University of California, Berkeley 00:12:6D:00:00:00 /24 MA-L 🇺🇸 University of Michigan C0:98:E5:00:00:00 /24 MA-L 🇺🇸 University of Nebraska -- Lincoln 40:D8:55:11:80:00 /36 IAB 🇺🇸 University of Oklahoma E4:3C:80:00:00:00 /24 MA-L 🇺🇸 University of Texas at Austin 64:33:B5:E0:00:00 /28 MA-M 🇺🇸 University of Wisconsin Madison - Department of High Energy Physics 70:B3:D5:98:C0:00 /36 MA-S 🇺🇸 Unlimited Bandwidth LLC 00:50:C2:47:90:00 /36 IAB 🇺🇸 Unlimited Bandwidth LLC 8C:1F:64:3D:90:00 /36 MA-S 🇺🇸 Unlimited Bandwidth LLC 8C:1F:64:84:B0:00 /36 MA-S 🇺🇸 UNOWHY 2C:00:2C:00:00:00 /24 MA-L 🇺🇸 Untangle, Inc. 60:95:CE:40:00:00 /28 MA-M 🇺🇸 Update Systems Inc. 54:08:3B:80:00:00 /28 MA-M 🇺🇸 Update Systems Inc. 00:50:C2:AA:D0:00 /36 IAB 🇺🇸 UpdateLogic Inc. 00:21:02:00:00:00 /24 MA-L 🇺🇸 Uplevel Systems Inc 70:B3:D5:A1:30:00 /36 MA-S 🇺🇸 Uplink 2A:2F:83:00:00:00 /24 CID 🇺🇸 UPM Technology, Inc 58:20:8A:E0:00:00 /28 MA-M 🇺🇸 UPM Technology, Inc 70:B3:D5:75:C0:00 /36 MA-S 🇺🇸 upscale ai E8:47:F3:00:00:00 /24 MA-L 🇺🇸 Upstart Power 8C:1F:64:A9:C0:00 /36 MA-S 🇺🇸 Uptime Devices 00:08:67:00:00:00 /24 MA-L 🇺🇸 UPVEL D4:BF:7F:00:00:00 /24 MA-L 🇺🇸 US ARMY ELECTRONIC 00:C0:ED:00:00:00 /24 MA-L 🇺🇸 US Beverage Net 00:24:0A:00:00:00 /24 MA-L 🇺🇸 US Digital Television, Inc 00:11:4F:00:00:00 /24 MA-L 🇺🇸 USA 111 Inc A8:D4:09:00:00:00 /24 MA-L 🇺🇸 USAG 80:AA:A4:00:00:00 /24 MA-L 🇺🇸 USM Systems, Ltd 00:50:C2:86:A0:00 /36 IAB 🇺🇸 UTC CCS 00:08:F8:00:00:00 /24 MA-L 🇺🇸 UTC CCS 00:B0:19:00:00:00 /24 MA-L 🇺🇸 UTILICOM, INC. 00:D0:39:00:00:00 /24 MA-L 🇺🇸 Utility, Inc 00:09:BC:00:00:00 /24 MA-L 🇺🇸 Utility, Inc 00:16:ED:00:00:00 /24 MA-L 🇺🇸 UTSTARCOM 00:E0:8E:00:00:00 /24 MA-L 🇺🇸 UTStarcom Inc 00:07:BA:00:00:00 /24 MA-L 🇺🇸 UTStarcom Inc 00:1B:DA:00:00:00 /24 MA-L 🇺🇸 UUNET TECHNOLOGIES, INC. 00:C0:87:00:00:00 /24 MA-L 🇺🇸 UV Networks, Inc. 00:50:C2:E9:90:00 /36 IAB 🇺🇸 V-BITS, INC. 00:D0:D4:00:00:00 /24 MA-L 🇺🇸 V.I COMPUTER CORP. 00:A0:F7:00:00:00 /24 MA-L 🇺🇸 V2 TECHNOLOGY, INC. E4:1C:4B:00:00:00 /24 MA-L 🇺🇸 V2Green, Inc. 00:50:C2:7E:70:00 /36 IAB 🇺🇸 VadaTech Inc. 00:13:3A:00:00:00 /24 MA-L 🇺🇸 Vaddio E0:F3:79:00:00:00 /24 MA-L 🇺🇸 VADEM 00:90:B0:00:00:00 /24 MA-L 🇺🇸 VALCOM, INC. 00:D0:5F:00:00:00 /24 MA-L 🇺🇸 Valde Systems, Inc. 00:50:C2:55:A0:00 /36 IAB 🇺🇸 Valence Semiconductor, Inc. 00:07:75:00:00:00 /24 MA-L 🇺🇸 Valentine Research, Inc. 6C:9A:C9:00:00:00 /24 MA-L 🇺🇸 Valere Power, Inc. 00:0A:19:00:00:00 /24 MA-L 🇺🇸 VALID NETWORKS, INC. 00:90:BA:00:00:00 /24 MA-L 🇺🇸 Validus Technologies 30:6E:5C:00:00:00 /24 MA-L 🇺🇸 Validyne Engineering Corp. 00:50:C2:08:60:00 /36 IAB 🇺🇸 Valley Products Corporation 00:50:C2:0E:D0:00 /36 IAB 🇺🇸 Valley Technologies, Inc. 00:05:44:00:00:00 /24 MA-L