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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS20202US | CRUCIALP - CRUCIALP LLC | — | — | 0 |
| AS19549US | SERVERSILO - HostPapa | — | — | 0 |
| AS26561US | NETRIDGE - NetRidge LLC | — | — | 0 |
| AS19392US | JCOM - J2 Cloud Services, LLC | — | — | 0 |
| AS19330US | TRITAN-INTERNET-LLC - Tritan Internet LLC | — | — | 0 |
| AS19028US | XO-ASN10 - Verizon Business | — | — | 0 |
| AS19487US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS22074US | CAL-NYC-ASN - Calamos Advisors LLC | — | — | 0 |
| AS21875US | PICK-INTERNET - Sands River Wireless | — | — | 0 |
| AS21562US | IQUEST-LB - LightBound, LLC | — | — | 0 |
| AS21596US | AHCA - AHCA | — | — | 0 |
| AS20250US | RMWC-NET - Randolph College | — | — | 0 |
| AS25662US | DDPSC - Donald Danforth Plant Science Center | — | — | 0 |
| AS19829US | SMILEBRANDS-PRIMARY - Smile Brands Group Inc | — | — | 0 |
| AS6264US | AS-ALTO-EXT2 - ALTO | — | — | 0 |
| AS199018US | ASXKRME Xkrme Network LLC | — | 82 | 4 |
| AS15US | NET-DYNAMICS-EXP - DYNAMICS | — | — | 0 |
| AS2009US | BT-CLOUD-CONNECT - INFONET Services Corporation | — | — | 0 |
| AS2644US | SMARTS-AS - System Management ARTS, Inc. | — | — | 0 |
| AS1727US | DNIC-AS-01727 - United States Department of Defense (DoD) | — | — | 0 |
| AS1599US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1450US | DNIC-AS-01450 - Headquarters, USAISC | — | — | 0 |
| AS1867US | DISN-PILOTNET13 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS23231US | CHARTER-23231-NA - Charter Communications LLC | — | — | 0 |
| AS10817US | GACONNECT - Georgia Connection.net | — | — | 0 |
| AS10597US | CRUSOE-AS - Crusoe Communications, Inc. | — | — | 0 |
| AS10588US | ICSNET - Intelligent Computer Solutions, Inc | — | — | 0 |
| AS13772US | THINKTECH-3 - Charles Schwab & Co., Inc. | — | — | 0 |
| AS14260US | USROYALINS - Royal&Sunalliance Insurance | — | — | 0 |
| AS13361US | ACPG - American Computer Group, Inc. | — | — | 0 |
| AS12270US | TWC-12270-NA - Charter Communications Inc | — | — | 0 |
| AS11987US | INDYWEB - INDY WEB INC | — | — | 0 |
| AS12203US | POP1 - Webster Bank, National Association | — | — | 0 |
| AS23392US | VWFS - VW CREDIT, INC | — | — | 0 |
| AS23345US | WEBCORE - EvolveIP, LLC | — | — | 0 |
| AS20401US | HOSTWAY-1 - Ntirety, Inc. | — | — | 0 |
| AS11672US | DFJBINC - NET2ATLANTA.COM LLC | — | — | 0 |
| AS22723US | UN - United Nations | — | — | 0 |
| AS22722US | SEVONE - IBM | — | — | 0 |
| AS22194US | SWITCH-COMMUNICATIONS - SWITCH, LTD | — | — | 0 |
| AS22309US | ASN1 - Kitsap Credit Union | — | — | 0 |
| AS27050US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS26983US | HPINC - HP Inc. | — | — | 0 |
| AS25654US | LPCAPWILTON - Lone Pine Capital LLC | — | — | 0 |
| AS18906US | CONCORD-AS - Concord Management Ltd | — | — | 0 |
| AS25685US | FNIS-ALB - Fidelity National Information Services, Inc. | — | — | 0 |