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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 2.3K |
| — |
| 6 |
| AS22213US | SALK-AS - Salk Institute | 2.3K | — | 9 |
| AS395848US | KING-NETWORKS - King Networks LLC | 2.3K | — | 9 |
| AS22511US | PRESIDIONS - Presidio Networked Solutions LLC | 2.3K | — | 9 |
| AS22237US | TSDC-AS - Technology Solutions of SC Inc. | 2.3K | — | 9 |
| AS33741US | DENNIS-GROUP - Dennis Group | 2.3K | 276 | 9 |
| AS62564US | LINVEO-LLC - LINVEO, LLC | 2.3K | 257 | 11 |
| AS32369US | THEJOCKEYCLUB - The Jockey Club | 2.3K | — | 5 |
| AS394859US | VBCS - Valparaiso Broadband Communication Systems | 2.3K | 65.5K | 10 |
| AS399519US | WILDSTAR-NETWORKS-01 - WildStar Networks | 2.3K | — | 4 |
| AS40351US | AS-PLDPC - Pennsylvania Legislative Data Processing Center | 2.3K | — | 9 |
| AS394298US | US-SC-DAL-AS - Airlinq Inc | 2.2K | 2 | 13 |
| AS20080US | AMPATH - Florida International University | 2.1K | 98.3K | 9 |
| AS19272US | RCL-268-19272 - Rochester Colo LLC | 2K | 65.5K | 2 |
| AS14869US | USTCONLINE - Union Springs Telephone Company | 2K | — | 1 |
| AS18793US | COM-PAIR-BROADBAND - Com-Pair Services | 2K | — | 4 |
| AS14303US | MEMASN1 - City of Memphis | 2K | — | 2 |
| AS394973US | AARKI - Aarki, Inc. | 2K | — | 8 |
| AS203483US | garmin-emea Garmin International, Inc. | 2K | 2 | 7 |
| AS5008US | TW-ASN-01 - Boldyn Networks Transit US LLC | 2K | — | 5 |
| AS46812US | LCS - London Computer Systems, Inc | 2K | — | 8 |
| AS10558US | BIOLA---BIOLA-UNIVERSITY - Biola University, Inc. | 2K | — | 6 |
| AS21904US | POWER1COM - PowerOne | 2K | — | 8 |
| AS19320US | FLEX-WDF - Flextronics International USA, Inc. | 2K | — | 4 |
| AS36451US | RIGETTI-BERKELEY-01 - Rigetti Computing | 2K | — | 5 |
| AS27314US | HIU - Hope International University | 2K | — | 1 |
| AS26835US | MAPOLCE - M.A. POLCE CONSULTING INC. | 2K | — | 3 |
| AS33751US | BRH - Bartlett Regional Hospital | 2K | — | 1 |
| AS35984US | GDS-AS-01 - Group Dekko Services, LLC | 2K | — | 5 |
| AS36591US | ZULUCARE - PixelRiver | 2K | — | 3 |
| AS46434US | MITSU-10-ASN - MUFG Securities Americas Inc. | 2K | — | 7 |
| AS13660US | BCBSND-AS - Blue Cross Blue Shield of North Dakota | 2K | — | 1 |
| AS26087US | GARDNER-WEBB - Gardner-Webb University | 2K | — | 1 |
| AS40387US | UI-ICCN - University of Illinois | 2K | 1 | 2 |
| AS394738US | COLOCROSSING - HostPapa | 2K | — | 4 |
| AS32194US | ASN-PHOENIX-CHILDRENS - PHOENIX CHILDREN'S HOSPITAL | 2K | — | 5 |
| AS6586US | WEBCENTRIC - WebCentric Communications, Inc. | 2K | — | 1 |
| AS398915US | SHARONTC-NET-1 - Sharon Telephone Company | 2K | 65.5K | 9 |
| AS31756US | COLORADOSPRINGS-GOV - City of Colorado Springs | 2K | — | 1 |
| AS19609US | MANDA-VEEDIX-NET - M&A Technology, Inc | 2K | — | 2 |
| AS11463US | KINDREDHEALTHCARE - Kindred Healthcare, Inc. | 2K | — | 4 |
| AS47065US | PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065 - USC / UFMG PEERING Research Testbed | 2K | 156 | 161 |
| AS18787US | DANAHER - Danaher | 2K | — | 6 |
| AS19579US | THEVILLAGES - The Villages Operating Company | 2K | — | 1 |
| AS13437US | INNOVEX - Innovex Solutions LLC | 2K | 256 | 9 |
| AS12243US | WADDELL - Waddell Solutions Group LLC | 2K | 65.8K | 10 |
| AS7003US | GNET-ARIN-AS - GNET INC. | 2K | — | 5 |