ASNs in United States
17,163 Autonomous Systems are registered in United States, ordered by the IPv4 space our directory attributes to each. Page 3 of 172.
Networks 201-300 by IPv4 Space
The badge is how many IPv4 /24 blocks our directory attributes to each network. For the prefixes an AS is announcing right now, open its page.
- 1,267AS8047GENERAL COMMUNICATION, INC.gci.com
- 1,265AS3527National Institutes of Healthnih.gov
- 1,263AS29992U.S. Department of Veterans Affairsva.gov
- 1,246AS3477National Oceanic and Atmospheric Administrationnoaa.gov
- 1,239AS13536FirstLight Networks, LLCfirstlight.net
- 1,234AS15108Allo Communications LLCallocommunications.com
- 1,232AS27364Armstrongarmstrongonewire.com
- 1,231AS6922Texas Department of Information Resourcestexas.gov
- 1,219AS27046United States Department of Defense (DoD)mail.mil
- 1,210AS17054Expedientexpedient.com
- 1,207AS3480Board of Regents of the University System of Georgiausg.edu
- 1,199AS23005SWITCH, LTDswitch.com
- 1,195AS11320LightEdge Solutionslightedge.com
- 1,190AS21852State Of Arkansas, Division of Information Systemsarkansas.gov
- 1,184AS30103Zoom Video Communications, Inczoom.us
- 1,168AS18University of Texas at Austinutexas.edu
- 1,166AS26810U.S. Dept. of Health and Human Serviceshhs.gov
- 1,140AS11714Network Nebraskanetworknebraska.net
- 1,135AS683Argonne National Laboratoryanl.gov
- 1,128AS207990HostRoyale Technologies Pvt Ltdhostroyale.com
- 1,125AS1341Rockwell Collins, Inc.rockwellcollins.com
- 1,108AS391Air Force Systems Networkingaf.mil
- 1,103AS226Los Nettoslosnettos.net
- 1,099AS8069Microsoft Corporationmicrosoft.com
- 1,087AS22205DataPipe, Inc.datapipe.com
- 1,083AS8147Ericsson Inc.ericsson.com
- 1,070AS127Jet Propulsion Laboratorynasa.gov
- 1,059AS5180United States Department of Defense (DoD)mail.mil
- 1,058AS122UPMCupmc.com
- 1,052AS409Air Force Systems Networkingaf.mil
- 1,048AS19957AT&T Enterprises, LLCatt.com
- 1,033AS54801Zillion Network Inc.zillion.network
- 1,032AS370United States Department of Defense (DoD)mail.mil
- 1,030AS5277United States Department of Defense (DoD)mail.mil
- 1,026AS19902Department of Administrative Servicesga.gov
- 1,025AS52University of California, Los Angelesucla.edu
- 1,024AS82Attachmate Corp.attachmate.com
- 1,024AS291ESnetes.net
- 1,024AS292ESnetes.net
- 1,024AS14298Environmental Protection Agencyepa.gov
- 1,024AS26662XEROX CORPORATIONxerox.com
- 1,024AS35986Vyve Broadbandvyvebroadband.com
- 1,022AS55University of Pennsylvaniaupenn.edu
- 1,019AS4454State of Tennesseestate.tn.us
- 1,016AS2048State of Louisiana Office of Technology Serviceslouisiana.gov
- 1,015AS11377SendGrid, Inc.sendgrid.com
- 1,006AS17Purdue Universitypurdue.edu
- 998AS27357Rackspace Hostingrackspace.com
- 997AS6360University of Hawaiihawaii.edu
- 987AS55286B2 Net Solutions Inc.servermania.com
- 976AS136787PacketHub S.A.packethub.net
- 959AS32244Liquid Web, L.L.Cliquidweb.com
- 950AS11272C Spire Fibercspirefiber.com
- 942AS20021Ntirety, Inc.ntirety.com
- 939AS10455Nokia of America Corporationnokia.com
- 928AS73University of Washingtonwashington.edu
- 925AS398101GoDaddy.com, LLCgodaddy.com
- 913AS1554United States Department of Defense (DoD)mail.mil
- 909AS23473PAVLOV MEDIA INCpavlovmedia.com
- 901AS2711Spirit Communicationssegra.com
- 901AS396356Latitude.shlatitude.sh
- 900AS6527Commonwealth of Massachusettsmass.gov
- 896AS1998State of Minnesotastate.mn.us
- 896AS10405Union Pacific Railroad Companyup.com
- 896AS395139NewYork-Presbyterian Hospitalnyp.org
- 892AS13490Buckeye Cablevision, Inc.buckeyebroadband.com
- 887AS557University of Maine Systemmaine.edu
- 884AS32982U.S. Department of Energyenergy.gov
- 876AS10879Unitedhealthcareuhc.com
- 875AS6039United States Department of Defense (DoD)mail.mil
- 870AS138United States Department of Defense (DoD)mail.mil
- 850AS1798State of Oregonoregon.gov
- 847AS19551Incapsula Incincapsula.com
- 847AS30404Blue Streambluestreamfiber.com
- 847AS272096PACKETHUB S.A.packethub.net
- 845AS36384Google LLCgoogle.com
- 843AS1706The University of Arizonaarizona.edu
- 843AS398823PEG TECH INCraksmart.com
- 839AS25956Logixlogixbanking.com
- 837AS4922Shenandoah Cable Television LLCshentel.com
- 825AS2055Louisiana State Universitylsu.edu
- 815AS7896The Board of Regents of the University of Nebraskanebraska.edu
- 814AS14Columbia Universitycolumbia.edu
- 807AS13767DataBank Holdings, Ltd.databank.com
- 804AS16504Granite Telecommunications LLCgranitenet.com
- 803AS3464Alabama Supercomputer Authorityasc.edu
- 794AS2576U. S. Department of Transportationdot.gov
- 794AS36850University of North Carolina at Chapel Hillunc.edu
- 793AS18779EGIHostingegihosting.com
- 792AS1742Harvard Universityharvard.edu
- 786AS1637Headquarters, USAISCmail.mil
- 779AS1602Headquarters, USAISCmail.mil
- 777AS30449State of Arizonastate.az.us
- 774AS7150Commonwealth University of Pennsylvaniacommonwealthu.edu
- 774AS14051Fidiumconsolidated.com
- 773AS13541Siemens Industry Software Inc.siemens.com
- 772AS159Ohio State Universityosu.edu
- 772AS11442North Carolina State Universityncsu.edu
- 772AS11719Eaton Corporationeaton.com
- 771AS1999U.S. House of Representativeshouse.gov
Looking for a different country? The ASN Directory lists every one we hold, with its network count.