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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS30271US | KLGATES - K&L Gates, LLP | — | — | 0 |
| AS29699US | FLEX-DATASIDE-AS02 - Flexential Dataside, LLC | — | — | 0 |
| AS23238US | ICON-ENTERPRISES - CivicPlus, LLC | — | — | 0 |
| AS27310US | 180SERVERS - 180Servers.com | — | — | 0 |
| AS23016US | SB-TOPEKA - Security Benefit | — | — | 0 |
| AS23321US | PH-ASN - Pleasant Holidays LLC | — | — | 0 |
| AS23529US | BONAPPETIT - BON APPETIT MGMT CO | — | — | 0 |
| AS23110US | AS-FSNET - FS Net LLC | — | — | 0 |
| AS22958US | FIDELITY-001 - Fusion, LLC | — | — | 0 |
| AS20445US | HDT - HDT Engineered Technologies | — | — | 0 |
| AS11641US | INTUIT-LAS-DC - Intuit Inc. | — | — | 0 |
| AS11000US | BAC-MLAMRS - Bank of America, National Association | — | — | 0 |
| AS10987US | WEYERHAEUSER - Weyerhaeuser Company | — | — | 0 |
| AS12251US | NETRIX IT SERVICES COMMACK - Netrix LLC | — | — | 0 |
| AS13746US | EVOLVEIP-AITECH - EvolveIP, LLC | — | — | 0 |
| AS13539US | BASTYR-UNIVERSITY - Bastyr University | — | — | 0 |
| AS13538US | NYIIX-NY - TELEHOUSE International Corp. of America | — | — | 0 |
| AS20468US | WINDSTREAM-COMMUNICATIONS - Windstream Communications LLC | — | — | 0 |
| AS21579US | ACCESS2-OHIO - ACCESS | — | — | 0 |
| AS11561US | DFIN-AS1 - EDGAR Online, Inc. | — | — | 0 |
| AS20400US | CUDIRECTCORPORATION - CU Direct Corporation | — | — | 0 |
| AS18970US | XNPD - The NPD Group Inc. | — | — | 0 |
| AS20017US | TRANSCORE-FBS - DAT Solutions, LLC | — | — | 0 |
| AS22432US | INSURANCE-DATA-PROCESSING - INSURANCE DATA PROCESSING, INC. | — | — | 0 |
| AS22409US | LACKAWAXEN-TELECOMMUNICATIONS-SERVICES-INC - Lackawaxen Telecommunications Services, Inc. | — | — | 0 |
| AS21637US | SIOUIX - HOUIX | — | — | 0 |
| AS21863US | INTELIVANT-CONSULTING - intelivant consulting, llc | — | — | 0 |
| AS18613US | LIVEVOX - LiveVox, INC. | — | — | 0 |
| AS14774US | WILLIAM-PENN-FOUNDATION - William Penn Foundation | — | — | 0 |
| AS30141US | DEMOCRATIC-NATIONAL-COMMITTEE - Democratic National Committee | — | — | 0 |
| AS32429US | ATAENG - ATA Engineering, Inc. | — | — | 0 |
| AS32487US | CCPSL-AS - Cast & Crew LLC | — | — | 0 |
| AS32359US | SEMCOMM-01 - Spy Ego Media LLC | — | — | 0 |
| AS32296US | METROFFICE - Metro Office Management, Inc. | — | — | 0 |
| AS14533US | UHCC - The Union Hospital of Cecil County, Inc. | — | — | 0 |
| AS15109US | TRAPP-ONLINE-02 - Trapp Online, LLC | — | — | 0 |
| AS14856US | AS-VUDU - VUDU, Inc. | — | — | 0 |
| AS11161US | DIGITALVIRT - DigitalVirt | — | 1 | 1 |
| AS13988US | IVANET-FRANKFURT - IBASIS INC. | — | — | 0 |
| AS14154US | FAIRPOINT-UNITE - Fidium | — | — | 0 |
| AS16955US | VIRTU-16955 - Virtu Financial Operating LLC | — | — | 0 |
| AS16883US | 365DC-2 - BroadbandONE, LLC | — | — | 0 |
| AS19269US | FMRCOC-LEFT - FMR LLC | — | — | 0 |
| AS15282US | DATA443-COMMTOUCH-INC-2 - Data443 Risk Mitigation, Inc. | — | — | 0 |
| AS11615US | WEBEXNET - 007names, Inc. | — | — | 0 |
| AS12049US | HNIX-AK - Heritage NetWorks, LLC | — | — | 0 |