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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS40840US | AS-OMNIVA-BB - Omniva LLC | — | — | 0 |
| AS40847US | IBML-US-HQ - ibml | — | — | 0 |
| AS40941US | GEOLINKS-AS - GeoLinks | — | — | 0 |
| AS43217US | HEIDRICK-STRUGGLES-PARIS Heidrick and Struggles International Inc | — | — | 0 |
| AS45915US | YAHOO-AS-AP - Yahoo Inc. | — | — | 0 |
| AS46141US | OMNIPOP - Big Ten Academic Alliance | — | — | 0 |
| AS46296US | WHITEHAT - WhiteHat Inc. | — | — | 0 |
| AS46438US | NOVO-BUILDING-PRODUCTS - The Empire Company, Inc. | — | — | 0 |
| AS46499US | JEIX-US - AirRabbit, LLC | — | — | 0 |
| AS46611US | CLAYSCHOOLS - Clay County Schools | — | — | 0 |
| AS46625US | HELLMAN-JORDAN-MANAGEMENT-COMPANY-INC-ASN - Hellman Jordan Management Company Inc. | — | — | 0 |
| AS46712US | QTS-COS - Quality Technology Services, LLC | — | — | 0 |
| AS46831US | OUTRIGGER-COM-HNL - OUTRIGGER ENTERPRISES, INC. | — | — | 0 |
| AS46893US | TRANSWORKS - Norfolk Southern Railway Company | — | — | 0 |
| AS46896US | CSGA - CSG Systems Inc. | — | — | 0 |
| AS46948US | LYCEE-505 - Lycee Francais De New York | — | — | 0 |
| AS46954US | AS-SIGMANET - CONVERGEONE HOLDINGS, INC. | — | — | 0 |
| AS47001US | LIVEPERSON - LivePerson, Inc. | — | — | 0 |
| AS48077US | ZIXCORP-EU-ASN Zix Corporation | — | — | 0 |
| AS53252US | PTG-17-ASN - World Wide Technology Holding Co., Inc. | — | — | 0 |
| AS53344US | HAUTELOOK - Nordstrom, Inc. | — | — | 0 |
| AS53448US | GAMES-ASN - REALNETWORKS LLC | — | — | 0 |
| AS53490US | MEDPLUS - MedPlus, Inc. | — | — | 0 |
| AS53547US | LHH - Lee Hecht Harrison LLC | — | — | 0 |
| AS53569US | AS-SANTA-MONICA-MD - Guggenheim Services LLC | — | — | 0 |
| AS53611US | EMS99AS01 - EARTHMETA MULTIMEDIA STUDIOS | — | — | 0 |
| AS53632US | AS-DATATILITY-GLOBAL - Datatility, Inc. | — | — | 0 |
| AS53691US | ISN-4 - Interop Show Network | — | — | 0 |
| AS53711US | OWENS-CORNING - Owens-Corning | — | — | 0 |
| AS53761US | SPARTAN-HOST - Spartan Host LLC | — | — | 0 |
| AS53776US | SPECTRUMRETIREMENT - Spectrum Retirement Communities, L.L.C. | — | — | 0 |
| AS53857US | EN-53857 - EllumNet LLC | — | — | 0 |
| AS53859US | RACE - Race Tech, LLC | — | — | 0 |
| AS53886US | NASCENT - Nascent US LLC | — | — | 0 |
| AS54011US | NYDH - NewYork-Presbyterian Hospital | — | — | 0 |
| AS54069US | AU-OHIO-BF - Aunalytics, Inc | — | — | 0 |
| AS54088US | TRAXTECH - Trax Technologies, Inc | — | — | 0 |
| AS54125US | MANDIANT - Mandiant, Inc. | — | — | 0 |
| AS54220US | IISL-COM - International Integrated Solutions | — | — | 0 |
| AS54285US | ISD-709-01 - Duluth Public Schools | — | — | 0 |
| AS54333US | MVBFIN - MVB Financial Corp | — | — | 0 |
| AS54388US | ZITOMSE - Zito Media, L.P. | — | — | 0 |
| AS54402US | MOBI - Pinnacle Online | — | — | 0 |
| AS54423US | XANDEX-INTERNET1 - Xandex Inc. | — | — | 0 |
| AS54467US | XNNET - XNNET LLC | — | — | 0 |
| AS54487US | FDIL-NET-001 - Harley-Davidson, Inc. | — | — | 0 |