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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 16 |
| 3 |
| AS40956US | NORTHWOOD-UNIVERSITY - Northwood University | 768 | — | 3 |
| AS13395US | SMART-CITY-SOCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 768 | — | 2 |
| AS6598US | WIREDWATERS - Wired Waters, Inc. | 768 | — | 2 |
| AS16825US | DIRECTLINK - Directlink Technologies Corp. | 768 | — | 3 |
| AS394643US | AS-PHOENIXNAP-AUS1 - PhoenixNAP LLC | 768 | 257 | 4 |
| AS15143US | TOMORIN - Tomorin Network, LLC | 768 | 17 | 4 |
| AS14196US | YAHOO-CHA - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS5779US | YAHOO-DNB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS36523US | FCBT-AS - Farm Credit Bank of Texas | 768 | — | 3 |
| AS63071US | STAFFORDCOUNTYPUBLICSCHOOLS - Stafford County Public Schools | 768 | — | 3 |
| AS53499US | MCLEOD-HEALTH - McLeod Health | 768 | — | 3 |
| AS46723US | UNLABELED - Unlabeled LLC | 768 | 9 | 12 |
| AS401943US | HSE-ARIN-01 - Hornetsecurity | 768 | — | 2 |
| AS36669US | SONIC-MSM-DATACENTER - AMERICAN ESOTERIC LABORATORIES | 768 | — | 3 |
| AS19424US | CV-NET-1 - Cars Commerce | 768 | — | 2 |
| AS32971US | HCC-ASN - Howard Community College | 768 | — | 2 |
| AS46568US | HORMELFOODS - Hormel Foods Corporation | 768 | — | 3 |
| AS33575US | TFINET-PUBLIC - The Franklin Institute Science Museum | 768 | — | 2 |
| AS33426US | PEOPLEFLUENT-NETDIMENSIONS-INC - PeopleFluent | 768 | — | 3 |
| AS25644US | LINUXSQUARE - Linux Square | 768 | 768 | 6 |
| AS54485US | PCOM-EDU - Philadelphia College of Osteopathic Medicine | 768 | — | 3 |
| AS399883US | CODEFORHOST-AS-ARIN - CodeforHost Inc | 768 | 3 | 6 |
| AS11743US | EBSCO - EBSCO Industries, Inc. | 768 | — | 3 |
| AS397757US | BACKROADS-BROADBAND - Backroads Broadband | 768 | — | 2 |
| AS32030US | VOIPSTER - VoIPster Communications, INC. | 768 | 3 | 6 |
| AS30330US | ARI-9000 - Automotive Rentals, Inc. | 768 | 2 | 5 |
| AS54303US | FILMO - FILMON.COM, INC. | 768 | — | 3 |
| AS55229US | WSHOSTING - White Sands Hosting | 768 | — | 3 |
| AS397787US | MEWUK-NETWORKS - Black Oak Casino | 768 | 4.1K | 3 |
| AS14598US | YCP-ASN - York College of Pennsylvania | 768 | 4.1K | 4 |
| AS44841US | Egressif Egressif LLC | 768 | 526.6K | 7 |
| AS53770US | IQOR-AS - iQor US Inc. | 768 | — | 3 |
| AS400791US | EL-CAMINO-HEALTH-01 - El Camino Health | 768 | — | 2 |
| AS394622US | EMMIX - Emmix | 768 | — | 3 |
| AS400535US | CITY-OF-CHESAPEAKE - City of Chesapeake | 768 | 4.1K | 4 |
| AS46854US | KONAM - Konami Gaming, Inc. | 768 | — | 3 |
| AS14360US | AS14360 - Alvarez & Marsal Holdings, LLC | 768 | — | 3 |
| AS394714US | DRC - Data Recognition Corporation | 768 | — | 3 |
| AS62735US | LA-CARE-ASN - L.A. CARE COMMUNITY HEALTH | 768 | — | 3 |
| AS53806US | ASDUWLT - DELOITTE SERVICES - SLTC | 768 | — | 2 |
| AS32980US | NEUSTAR-AS5 - NeuStar, Inc. | 768 | — | 3 |
| AS401395US | ASN-BYO-DEMO - Amazon Technologies, Inc. | 768 | — | 2 |
| AS17096US | SUMMITRACING - SUMMIT RACING | 768 | — | 3 |
| AS393797US | TRAC-750CRE - Trac Intermodal | 768 | — | 2 |
| AS400800US | DAYTON-CHILDRENS-HOSPITAL - Dayton Children's Hospital | 768 | — | 2 |
| AS188US | SAIC-AS-188 - SAIC | 768 | — | 3 |