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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 3 |
| AS23235US | BOSMED-88-ENEWTON - Boston Medical Center | 1K | — | 4 |
| AS13461US | OCC-AS13461 - The Options Clearing Corporation | 1K | — | 4 |
| AS23414US | AUTORIDAD - Autoridad del Canal de Panama | 1K | — | 4 |
| AS11999US | REJISCOMM-NET - REJIS Commission | 1K | — | 4 |
| AS15292US | PIDOXA-RACINE - PIN Business Network, Inc. | 1K | 1 | 5 |
| AS13324US | EPC-INC - Executive Personal Computers Inc. | 1K | — | 2 |
| AS30166US | EX3IN - Ex3 | 1K | — | 1 |
| AS401026US | IMDC-EMEA - Iron Mountain Data Center | 1K | 257 | 6 |
| AS395872US | CITYOFGASTONIANC-1 - City of Gastonia | 1K | — | 1 |
| AS399886US | APOG-LYCOMING - Apogee Telecom Inc. | 1K | — | 3 |
| AS11826US | RISS2 - Regional Information Sharing Systems | 1K | — | 3 |
| AS3704US | ISPNET-AS - isp.net | 1K | — | 1 |
| AS63324US | CMTA-2 - Capital Metropolitan Transportation Authority | 1K | — | 1 |
| AS17352US | APPLICATIONX - Application X | 1K | — | 4 |
| AS54800US | LAREDOISD - Laredo ISD | 1K | — | 4 |
| AS22101US | CPIL-ASN - Cyber Point International, LLC | 1K | — | 4 |
| AS54821US | ALPINE-CONNECTIVE - Alpine Connective LLC | 1K | 4.1K | 2 |
| AS46833US | SENSUS-DATACENTERS - Sensus USA, Inc. | 1K | — | 2 |
| AS21821US | MMAHS-01 - Montefiore Medical Center | 1K | — | 4 |
| AS400719US | RJN-SERVICES - RJN Services | 1K | 4 | 8 |
| AS399892US | ASN - Cloudtunnel | 1K | — | 1 |
| AS398430US | SPEEDWAVZ - Speedwavz LLP | 1K | — | 4 |
| AS40262US | PANTONE-AS - Pantone Inc. | 1K | — | 4 |
| AS1647US | INTEROP-AS - Interop Technologies | 1K | — | 4 |
| AS401800US | ILSOS - Illinois Secretary of State | 1K | — | 1 |
| AS62473US | ATC-INTERNET - The Adirondack Trust Company | 1K | — | 4 |
| AS400338US | GIGABEAM-INTERNET - Gigabeam Internet | 1K | 65.5K | 3 |
| AS13467US | OTA-BGP-01 - Oklahoma Turnpike Authority | 1K | — | 3 |
| AS398159US | RICEBELT-1 - RICE BELT TELEPHONE CO., INC. | 1K | — | 1 |
| AS398123US | IRACING-CORPORATE - IRACING.COM MOTORSPORT SIMULATIONS, LLC | 1K | 4 | 6 |
| AS4886US | OPINIONRESEARCHERS - Opinion Researchers, L.L.C. | 1K | — | 3 |
| AS46488US | BLS-BROADBAND-ASN1 - BLS Broadband | 1K | 256 | 5 |
| AS36508US | DIPV - digitalIPVoice, Inc | 1K | — | 4 |
| AS25617US | SMITHNEPHEW - Smith and Nephew, Inc. | 1K | — | 4 |
| AS18778US | CLA - CliftonLarsonAllen, LLP | 1K | — | 4 |
| AS23515US | ITSOLUTIONS - IT Solutions Consulting, LLC | 1K | — | 4 |
| AS394902US | HCDL-PORTLAND-DATA-CENTER - H5 Data Centers | 1K | 256 | 5 |
| AS397444US | AS-OKI - Overkill Interbuzz LLC | 1K | 10 | 14 |
| AS40036US | WAL-91-40036 - Wisk Aero LLC | 1K | — | 3 |
| AS23539US | TCF-NETWORK-01 - Tel-Star Communications Of Florida, Inc. | 1K | — | 3 |
| AS29851US | WARBURGPINCUS - E.M. Warburg, Pincus & Co. Inc. | 1K | — | 4 |
| AS11326US | ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 1K | — | 4 |
| AS399183US | DEEPINTENT - DeepIntent, Inc. | 1K | 1 | 5 |
| AS8084US | WOLVERINE-EXECUTIONS-SERVICES - Wolverine Execution Services, LLC | 1K | — | 4 |
| AS399308US | UFP-GR - UFP Industries, Inc. | 1K | — | 3 |
| AS19463US | RISE-AS19463 - JAB Wireless, INC. | 1K | — | 4 |