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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| — |
| — |
| 0 |
| AS54574US | DMIT-EYEBALL - DMIT Cloud Services | — | — | 0 |
| AS54589US | SOROBAN-CAPITAL-PARTNERS-LLC - Soroban Capital Partners LLC | — | — | 0 |
| AS54590US | TCP - Tcpdump LLC | — | — | 0 |
| AS54592US | PHOENIXSOFT-AS - Phoenixsoft, Inc. | — | — | 0 |
| AS54597US | SERVERCHEAP - Cloudfanatic.NET | — | — | 0 |
| AS54703US | PHYSIO-INC - PHYSIO-CONTROL, INC. | — | — | 0 |
| AS54854US | BORDERBGPNETWORK - Blueport Commerce | — | — | 0 |
| AS54902US | GCEFALU - G. Cefalu & Bro., Inc. | — | — | 0 |
| AS54951US | HIBBETT - Hibbett Retail, Inc. | — | — | 0 |
| AS54965US | NYU-POLY - Polytechnic Institute of NYU | — | — | 0 |
| AS54974US | FOUNDATIONSOFTWARE - Foundation Software Inc | — | — | 0 |
| AS55027US | SPPS-ORG - Independent School District 625 | — | — | 0 |
| AS55035US | FISERV-PRECISION - Fiserv Solutions, LLC | — | — | 0 |
| AS55137US | IOSTUDIO - iostudio, LLC | — | — | 0 |
| AS55138US | PBXSYSTEMS - PBX Systems | — | — | 0 |
| AS55198US | TRUSTTEK1 - Trusted Technical Services, Inc. | — | — | 0 |
| AS62626US | EC-99-62626 - Tyler Vault | — | — | 0 |
| AS62858US | GCHAO01 - GCHAO LLC | — | — | 0 |
| AS62879US | MDDHOSTING - MDDHosting LLC | — | — | 0 |
| AS62922US | CJM - ClickJet Media Inc | — | — | 0 |
| AS62926US | CHEVRON - Chevron Corporation | — | — | 0 |
| AS62956US | FIBERHUB-DDOS - VegasNAP, LLC | — | — | 0 |
| AS62970US | ITS-ASN - ITS Logistics Inc. | — | — | 0 |
| AS63085US | COMPSYS-CLOUD - Compsys | — | — | 0 |
| AS63095US | AS-CINCINNATI-ENQUIRER - GANNETT SATELLITE INFORMATION NETWORK, LLC | — | — | 0 |
| AS63145US | DFW-IX - Manchitas USA Corp | — | — | 0 |
| AS63197US | CFOCUS - Continuity Focus, Inc. | — | — | 0 |
| AS63208US | GENVIO-INC-AS - Genvio Inc. | — | — | 0 |
| AS63227US | PROJUC2 - AT&T Services, Inc. | — | — | 0 |
| AS63271US | ODV - Online Datavault, LLC | — | — | 0 |
| AS63469US | EXEGY-VELA-TRADING - Exegy Incorporated | — | — | 0 |
| AS64209US | DBOPS-ASN - DBOPS, LLC | — | — | 0 |
| AS64274US | ORCOURTS - Oregon Judicial Department | — | — | 0 |
| AS133877US | CLOUDFLARE - Cloudflare, Inc. | — | — | 0 |
| AS135085US | HOSTWINDSLLC-AS-AP - Hostwinds LLC | — | — | 0 |
| AS137437US | AIRBNB-AS-AP - Airbnb, Inc. | — | — | 0 |
| AS149286US | NETINNOVATIONLLC-AS-AP - net innovation llc | — | — | 0 |
| AS197619US | TELNAB Telnab Networks LLC | — | — | 0 |
| AS202153US | tqhosting-kar01 NetActuate Inc | — | — | 0 |
| AS203189US | WEB-DUNKARE Dunkare LLC | — | — | 0 |
| AS205609US | sigmatel Sigma Telecom LLC | — | — | 0 |
| AS206203US | ASHNET-AS Ashley Statuto | — | — | 0 |
| AS210764US | ISC-AGP1 Internet Systems Consortium Inc. | — | — | 0 |
| AS212187US | AS_Screwjack Screwjack, LLC | — | — | 0 |
| AS213034US | STACLAR-CORPORATE Staclar, Inc. | — | — | 0 |
| AS218501US | ORG-NNL54-AS Northwave Networks LLC | — | — | 0 |