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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS10551US | RAPID-CITY-REGIONAL - Monument Health Rapid City Hospital, Inc. | 256 | — | 1 |
| AS397170US | COMPASS-FOUNDATION - COMPASS FOUNDATION LLC | 256 | 768 | 4 |
| AS399051US | ALLSTATE-SECURITY-INDUSTRIES-INC - ALLSTATE SECURITY INDUSTRIES, INC. | 256 | — | 1 |
| AS394675US | LITTEN-COMMUNICATIONS-01 - Litten Communications LLC | 256 | — | 1 |
| AS53734US | NUTTER-ASN-01 - Nutter | 256 | — | 1 |
| AS33738US | UNITED-STATES-HOLOCAUST-MEMORIAL-MUSEUM - United States Holocaust Memorial Museum | 256 | — | 1 |
| AS23303US | ABTECH-CARLSBAD - Abtech Technologies, Inc. | 256 | — | 1 |
| AS53549US | HUSSEY-SEATING - Hussey Seating Company | 256 | — | 1 |
| AS36239US | OFFICERING-LAX - RATETEL, INC | 256 | — | 1 |
| AS395166US | AMERICANNATIONALBANK - American National Bank | 256 | — | 1 |
| AS397024US | AMGNATIONAL - AMG National Trust Bank | 256 | — | 1 |
| AS21820US | V64U - V6 FOR YOU LLC | 256 | 2 | 3 |
| AS14395US | FHLBATL - Federal Home Loan Bank Of Atlanta | 256 | — | 1 |
| AS399721US | AS-MS-78065 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS32196US | JLEMDR - Jacobs Levy Equity Management, Inc. | 256 | — | 1 |
| AS394115US | SRALAB-AS - Rehabilitation Institute of Chicago | 256 | — | 1 |
| AS14002US | AS14002 - RAILINC CORP. | 256 | — | 1 |
| AS199594US | PMIX-AS Poema eXchange LLC | 256 | 256 | 2 |
| AS53656US | FINGER-LAKES-HEALTH - Finger Lakes Regional Health System, Inc. | 256 | — | 1 |
| AS30669US | CAMDEN-NATIONAL - Camden National Bank | 256 | — | 1 |
| AS39958US | GTSX-01 - GTS Securities, LLC | 256 | — | 1 |
| AS398399US | ASANA-IT-01 - Asana, Inc. | 256 | 1 | 2 |
| AS398334US | VOCINITY - Tekvizion PVS, Inc. | 256 | — | 1 |
| AS46594US | BIS-CORP - Business Information Systems, Inc. | 256 | — | 1 |
| AS53588US | ATHOC-DC3 - AtHoc Inc | 256 | — | 1 |
| AS393332US | MCALLENISD-TX - McAllen Independent School District | 256 | — | 1 |
| AS399751US | CNTYRCKHM - County of Rockingham | 256 | — | 1 |
| AS20159US | IMPERIAL-CAPITAL-GROUP-LLC - Imperial Capital Group LLC | 256 | — | 1 |
| AS64202US | CHELSIO - Chelsio Communications, Inc. | 256 | — | 1 |
| AS19191US | SPRINGNET1-EOS - JAB Wireless, INC. | 256 | — | 1 |
| AS26956US | OSG-SHIP-MANAGMENT-INC - OSG Ship Management, Inc | 256 | — | 1 |
| AS394669US | COTA-AUSTTX - Circuit of The Americas LLC | 256 | — | 1 |
| AS86US | DXC-AS86 - DXC US Latin America Corporation | 256 | 193 | 14 |
| AS23041US | PENNHIGHLANDSCC - Pennsylvania Highlands Community College | 256 | — | 1 |
| AS21752US | ACPHLA - Albany County Pine Hills Land Authority | 256 | 256 | 2 |
| AS32687US | SKYTRON-AS - The KMW Group, Inc. | 256 | — | 1 |
| AS53463US | AGC-01 - American Greetings | 256 | — | 1 |
| AS36501US | DELORME-PUBLISHING - GARMIN INTERNATIONAL INC. | 256 | — | 1 |
| AS213912US | Mediabay-AS International Mediabay Alliance, LLC | 256 | — | 1 |
| AS399132US | AS-GNS - Genesis Network Solutions, INC. | 256 | — | 1 |
| AS13418US | WHG-FORBGP-02 - Fort Wayne Newspapers, Inc. | 256 | — | 1 |
| AS26920US | DTI-EAST-SLCL - DataGroup Technologies, LLC | 256 | — | 1 |
| AS40017US | PPD-RESEARCH-TRIANGLE-PARK-NC - PPDI | 256 | — | 1 |
| AS399504US | STREAMING-SYSTEMS-LLC - Streaming Systems, LLC | 256 | 4.1K | 2 |
| AS400358US | TOTALDATALOSS - TOTALDATALOSS LLC | 256 | 256 | 2 |
| AS20099US | HMNS - Houston Museum of Natural Science | 256 | 1 | 2 |