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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS36168US | ASSURED-NETWORKS-DEV - Assured Networks | — | — | 0 |
| AS36282US | ORCL-ASHBURN2 - Oracle Corporation | — | — | 0 |
| AS36296US | RL-NET1-SJC - RingLogix LLC | — | — | 0 |
| AS36322US | ASN-COSCIL - City of St. Charles | — | — | 0 |
| AS36355US | BLENDEDIP - BlendedIP LLC | — | — | 0 |
| AS36361US | QUORA - Quora Inc | — | — | 0 |
| AS36400US | PARTNET-AS - PartNET, Inc. | — | — | 0 |
| AS36409US | CHARTER-36409-NA - Charter Communications LLC | — | — | 0 |
| AS36423US | LIBERTY-COMMUNICATIONS - Liberty Communications of Puerto Rico LLC | — | — | 0 |
| AS36618US | FGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36657US | AVAGO-AS-AM - Avago Technologies U.S. Inc. | — | — | 0 |
| AS36688US | GFTL-3-36688 - Galileo Financial Technologies, LLC | — | — | 0 |
| AS36721US | CONNECT-BY-AMFAM-01 - CONNECT, powered by American Family Insurance | — | — | 0 |
| AS39972US | GROQ-GEG-1 - Groq, Inc. | — | — | 0 |
| AS40176US | DATA-SUBSYSTEMS-INC-AS - Data Subsystems Inc | — | — | 0 |
| AS40190US | DE-CO-MPLS-CORE - Windstream Communications LLC | — | — | 0 |
| AS40254US | 4601 - SAN JUAN COLLEGE | — | — | 0 |
| AS40258US | CVFCU-MTATHOS - CENTRAL VIRGINIA FEDERAL CREDIT UNION | — | — | 0 |
| AS40260US | TERRA-NETWORKS-MIAMI - Telefonica Global Solutions USA, INC | — | — | 0 |
| AS40265US | CB-MAIN-INTERNET - City Bank | — | — | 0 |
| AS40361US | PROFILESYSTEMSLLC - Profile Systems, LLC | — | — | 0 |
| AS40419US | H2-TECHNOLOGIES-GOV - Austin Hadley, Sole Proprietorship | — | — | 0 |
| AS40423US | VERSO-PUB-RANGE2 - Verso Corporation | — | — | 0 |
| AS40450US | ASN-CROWD - Crowdstrike | — | — | 0 |
| AS40472US | AS-HBA - HBA International Inc. | — | — | 0 |
| AS40557US | SKC - Salish Kootenai College | — | — | 0 |
| AS40650US | MATRIX - MATRIX SERVICE COMPANY | — | — | 0 |
| AS40652US | TE-CONNECTIVITYCORPORATION - TE Connectivity Corporation | — | — | 0 |
| AS40832US | UNIONTWPOH - Union Township Ohio | — | — | 0 |
| AS40835US | LFC-IMMFL-AS - SIX LS PACKING COMPANY INC | — | — | 0 |
| AS40873US | AS-METAWEB-2 - Google LLC | — | — | 0 |
| AS40874US | CBNEPTUNE-AS-40874 - CB Neptune Holdings, LLC | — | — | 0 |
| AS40894US | INSOL-ASN-01 - Insol | — | — | 0 |
| AS46151US | CG-WW-NET - Intersection Design and Technology | — | — | 0 |
| AS46162US | ATC-NA - ATC Group Services, Inc. | — | — | 0 |
| AS46222US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS46355US | OPENDOOR - Open Door Creative LLc | — | — | 0 |
| AS46360US | VIRTU-FINANCIAL-LLC - Virtu Financial Operating LLC | — | — | 0 |
| AS46440US | STEADFAST-INT - Steadfast | — | — | 0 |
| AS46599US | PRF-DATASTATION - McClure Services LLC | — | — | 0 |
| AS46659US | PRIMET-INET-COLO-AS - Prime Therapeutics LLC | — | — | 0 |
| AS46724US | KSC - Kelsey-Seybold Clinic | — | — | 0 |
| AS46822US | ARGONST - Argon ST Inc. | — | — | 0 |
| AS46866US | OREGONFAST - TECHNOLOGY SERVICES INC | — | — | 0 |
| AS46871US | OCC-AS - Oakland Community College | — | — | 0 |
| AS47793US | CES-ASN Continental Exchange Solutions Inc. | — | — | 0 |