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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS7937US | SOUTHTECH - SouthTech.Net | — | — | 0 |
| AS7982US | COGENT-WAN - Cogent software, Inc. | — | — | 0 |
| AS7985US | CHRONICLE - THE CHRONICLE OF HIGHER EDUCATION | — | — | 0 |
| AS8031US | WORLDNET5-10 - AT&T WorldNet | — | — | 0 |
| AS8039US | CCC-ASN-1 - Windstream Communications LLC | — | — | 0 |
| AS8045US | EMIMUSICPUB-NY - EMI Music Publishing | — | — | 0 |
| AS8139US | RACALDATAGROUP - Racal Data Group | — | — | 0 |
| AS8155US | THE-LINK-MGM - The Link | — | — | 0 |
| AS8176US | NETSCAPE-ASN - Netscape | — | — | 0 |
| AS10346US | REDZONE - RedZone Wireless, LLC | — | — | 0 |
| AS10356US | WINDYCITY - Windy City Ltd. | — | — | 0 |
| AS10371US | AS10371 - National Aeronautics and Space Administration | — | — | 0 |
| AS10373US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | — | — | 0 |
| AS10450US | ADVANTECH - ADVANTECH | — | — | 0 |
| AS10472US | CWNET - Communications World Network | — | — | 0 |
| AS10480US | RA-N002 - HIVELOCITY, Inc. | — | — | 0 |
| AS10484US | HRBLOCK-AS - H&R Block | — | — | 0 |
| AS10491US | DIAMONDLINK - Diamond Link, Inc. | — | — | 0 |
| AS10510US | HOSTIRIAN-CORE-2 - River City Internet Group LLC | — | — | 0 |
| AS10576US | CDNOW - CDnow, Inc. | — | — | 0 |
| AS10592US | CONNECTED-DATA-SYSTEMS - NET1Plus | — | — | 0 |
| AS10598US | CCAP-ARIN-1 - Connectivity Capital LLC | — | — | 0 |
| AS10609US | TELEVAR - Televar Northwest, Inc. | — | — | 0 |
| AS10633US | AVIDGDC - Avid Technology, Inc. | — | — | 0 |
| AS10658US | GEEKLAB - Kollektive lucid ephemeric kaptive syndrome socitey | — | — | 0 |
| AS10659US | KYN-GTS - Kyndryl | — | — | 0 |
| AS10686US | MYXA-ASN - Myxa Corporation | — | — | 0 |
| AS10728US | T-MOBILE-AS10728 - T-Mobile USA, Inc. | — | — | 0 |
| AS10738US | INTELLETRACE - NACIO Systems, Inc. | — | — | 0 |
| AS10756US | VVM-AS - VVM, Inc. | — | — | 0 |
| AS10809US | NCIA - FirstLight Fiber, Inc. | — | — | 0 |
| AS10850US | MARC-GROUP - The M/A/R/C Group | — | — | 0 |
| AS10903US | TARGET-ASN - Target Corporation | — | — | 0 |
| AS11024US | COGENT-11024 - Cogent Communications, LLC | — | — | 0 |
| AS11026US | ATTIS-ASN11026 - AT&T Enterprises, LLC | — | — | 0 |
| AS11057US | AS-RV-V6 - Rivulet Wireless Inc. | — | — | 0 |
| AS11095US | FLORIDANET - FloridaNet | — | — | 0 |
| AS11098US | SBC-NET - SBC Communications, Inc. | — | — | 0 |
| AS11100US | EXPEDIENT-B - Expedient | — | — | 0 |
| AS11186US | CONNECTRIA-ASN-2 - Connectria | — | — | 0 |
| AS11384US | BLAZE-BROADBAND - BLAZE BROADBAND LLC | — | — | 0 |
| AS11401US | CPINTERNET-1 - Fidium | — | — | 0 |
| AS11410US | ACTIVE DATA - Active Data | — | — | 0 |
| AS11458US | ANM-AS01 - Advanced Network Management, Inc | — | — | 0 |
| AS11529US | NGUS-AS - National Grid | — | — | 0 |
| AS11533US | VERITY-AS - Verity, Inc. | — | — | 0 |