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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS402070US | LSDR-ASN-01 - Lone Star Data Ranch LLC | 256 | 256 | 2 |
| AS17214US | GUIDEWIRE - Guidewire Software, Inc. | 256 | — | 1 |
| AS402365US | FIVISION - fiVISION | 256 | 256 | 2 |
| AS401579US | RYTEL - RyTel LLC | 256 | — | 1 |
| AS32366US | THE-BROOKINGS-INSTITUTION-AS1 - The Brookings Institution | 256 | — | 1 |
| AS203414US | ORG-TCGL7-RIPE The Conerly Group, LLC | 256 | — | 1 |
| AS402097US | NTRS-MA5-P1 - The Northern Trust Company | 256 | — | 1 |
| AS36117US | RAYMO-18 - Raymour & Flanigan Furniture | 256 | — | 1 |
| AS399069US | PENGUIN-POD - PENGUIN COMPUTING INC | 256 | — | 1 |
| AS26319US | CHFCU - CoastHills Federal Credit Union | 256 | — | 1 |
| AS400037US | TVT-01 - Tamarack Resort | 256 | — | 1 |
| AS401490US | AS-TRMC - Tift Regional Health System, Inc. | 256 | — | 1 |
| AS400299US | DIGITALPREZ-LLC - DigitalPrez Consulting | 256 | — | 1 |
| AS40958US | KJ6FAF-LUHR-01 - Milpa Nativa Inc. | 256 | — | 1 |
| AS19840US | OAKTREECAP - Oaktree Capital Management, LP | 256 | — | 1 |
| AS400644US | BGPKIT-LLC - BGPKIT LLC | 256 | 1 | 2 |
| AS29701US | CUTCO-NETWORK - Cutco Corporation | 256 | — | 1 |
| AS54082US | MULTICABLE-NETWORK-GT-LLC - MULTICABLE NETWORK LLC | 256 | 65.5K | 2 |
| AS22058US | SUMMIT-VOICE - Summit Voice LLC | 256 | 4.1K | 2 |
| AS40693US | AS-CVMC-CENTRAL-VERMONT-MEDICAL-CENTER - Central Vermont Medical Center | 256 | — | 1 |
| AS31937US | VSP-ASN - Vision Service Plan | 256 | — | 1 |
| AS13615US | HVHS-AS - Heritage Valley Health System | 256 | — | 1 |
| AS11382US | WRF162 - Wiley Rein LLP | 256 | — | 1 |
| AS23267US | QUIKNET-QN-01 - Quik Net LLC | 256 | — | 1 |
| AS21749US | ALBERICI-GROUP - Alberici Group, Inc. | 256 | — | 1 |
| AS63377US | CLOUDERA-PA - Cloudera, Inc. | 256 | 1 | 2 |
| AS36477US | METHODIST-HEALTH-SYSTEM - Methodist Health System | 256 | — | 1 |
| AS32500US | VESTA - Airbus DS Communications Inc | 256 | — | 1 |
| AS12174US | AD-MEDIA-01 - Ad.com Interactive Media, Inc. | 256 | 1 | 2 |
| AS396896US | FERRARA-CANDY-CO - Ferrara Candy Company | 256 | — | 1 |
| AS54121US | DMSAS - David M. Schwarz Architects, Inc. | 256 | — | 1 |
| AS400233US | COSA-CITYHALL - City of San Angelo | 256 | — | 1 |
| AS14341US | WEBSOCLE-ASN - WebSocle | 256 | 256 | 2 |
| AS54317US | WOODSROGERSPLC-USA - Woods Rogers PLC | 256 | — | 1 |
| AS26143US | PROSITES-WC1 - ProSites, Inc. | 256 | — | 1 |
| AS19096US | DESALES-NETWORK - DeSales University | 256 | — | 1 |
| AS401472US | PACKETFEED - Packetfeed | 256 | 256 | 2 |
| AS399653US | CCAA-AS-2021 - Charleston County Aviation Authority | 256 | — | 1 |
| AS396381US | GENESISHCS - Genesis Healthcare System | 256 | — | 1 |
| AS30401US | SUIT-SHARED-SERVICES - Southern Ute Indian Tribe | 256 | — | 1 |
| AS14073US | NEXTJUMPINC - Next Jump, Inc. | 256 | — | 1 |
| AS31836US | USLI - United States Liability Insurance Group | 256 | — | 1 |
| AS400284US | LTP-USDC-FO-01 - Lifetime Products, Inc. | 256 | — | 1 |
| AS401978US | INTREPID-NETWORK-GROUP - Intrepid Network Group | 256 | 4.1K | 2 |
| AS29707US | MATCU - Orion Federal Credit Union | 256 | — | 1 |
| AS21963US | AS-AGENCYINSURANCEMD-0001 - Agency Insurance Company | 256 | — | 1 |