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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS54157US | NY-OCG - Orange County Government | — | — | 0 |
| AS46428US | EXPEDIA-INC - EXPEDIA, INC | — | — | 0 |
| AS53553US | AS-CASTLE - Complete Building Technology Services Inc. | — | — | 0 |
| AS53530US | MYRON-ASN - Myron Corp. | — | — | 0 |
| AS53314US | EXPRES - Express Scripts Incorporated | — | — | 0 |
| AS53378US | MINDBODYONLINE - MindBody, Inc. | — | — | 0 |
| AS396756US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396745US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396572US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS53275US | GRAHAM-PARTNERS - Graham Partners, Inc. | — | — | 0 |
| AS46570US | CBLT-INTEGRALINK - The Cobalt Group | — | — | 0 |
| AS395867US | DSAC - Dassault Systemes Americas Corp. | — | — | 0 |
| AS398442US | WCD-AS-01 - Wisconsin Center District | — | — | 0 |
| AS395684US | SUNEAST - Sun East | — | — | 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |
| AS397653US | CITYCR - City of Cedar Rapids | — | — | 0 |
| AS397469US | SPECTEROPS-AS-01 - SpecterOps | — | — | 0 |
| AS398133US | DMEA - DMEA | — | — | 0 |
| AS396888US | ZUORA-CORP-EMEA - Zuora, Inc | — | — | 0 |
| AS396814US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS394156US | TSYS-EQUINIX-SV1 - Global Payments Inc. | — | — | 0 |
| AS394224US | PROGRESSIVEHEALTHSYSTEMS - Progressive Health Systems | — | — | 0 |
| AS62655US | TRANSFORMATIVEMED - TransformativeMed, Inc. | — | — | 0 |
| AS4056US | LASC-USAF - Lockheed Aeronautical Systems Company | — | — | 0 |
| AS3990US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3827US | ELECTRICITI - Electriciti | — | — | 0 |
| AS2009US | BT-CLOUD-CONNECT - INFONET Services Corporation | — | — | 0 |
| AS63231US | LUMIA-SEC - Lumia Security | — | — | 0 |
| AS63218US | ARIN-WEBINAR - American Registry for Internet Numbers | — | — | 0 |
| AS63075US | GL-SDWAN - GeoStar, LLC. | — | — | 0 |
| AS63158US | LAHARPE - La Harpe Communications INC. | — | — | 0 |
| AS62481US | TRUIST-ASN-62481 - Truist Financial Corporation | — | — | 0 |
| AS58251US | PANDA-AS Panda Network,Inc | — | — | 0 |
| AS215327US | Altare Altare AI LLC | — | — | 0 |
| AS30204US | RENEGADE-TECH-01 - Renegade Technologies | — | — | 0 |
| AS211369US | VERISIGN-AS VeriSign Inc. | — | — | 0 |
| AS210883US | AQUASYS Aquasys, LLC | — | — | 0 |
| AS147025US | ISC-AS-AP - Internet Systems Consortium | — | — | 0 |
| AS206116US | GATE-AS-EU Gate Communications LLC | — | — | 0 |
| AS64468US | CSML-14-64468 - Summit Securities Group LLC | — | — | 0 |
| AS64219US | MEGAPORTUSAINC-SEAIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS47103US | ZNL-15-47103 - GIGAPATH LLC | — | — | 0 |
| AS63446US | GLOBALCONNECTIONS-AS - Global Connections, Inc | — | — | 0 |
| AS46795US | AG-PARTNERS-LLC - AG PARTNERS LLC | — | — | 0 |
| AS46703US | SOFTLAYER-SEA01 - IBM Cloud | — | — | 0 |
| AS46531US | EXCORESO - Exco Resources, Inc. | — | — | 0 |