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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. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| — |
| 0 |
| AS7121US | PALACEGROUP - The Palace Group, Inc. | — | — | 0 |
| AS7188US | ETCNET-AS - Eastern Telelogic Corporation | — | — | 0 |
| AS7290US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS7295US | NETWORKAMERICA - Network America Systems, Inc. | — | — | 0 |
| AS7337US | SNIPEMAIL - Southern NJ Internet Providers (SNIP) | — | — | 0 |
| AS7410US | NUSKIN - Nu Skin International, Inc. | — | — | 0 |
| AS7421US | COGENT-7421 - Cogent Communications, LLC | — | — | 0 |
| AS7730US | NETLAN - NETLAN Inc. | — | — | 0 |
| AS7744US | WCD-AS - WCD Enterprises | — | — | 0 |
| AS7848US | RCN-AS2 - RCN | — | — | 0 |
| AS7854US | DSSVAUS - Virginia Department of Social Services | — | — | 0 |
| AS7858US | EXECUTELE - Executive Telecard, S.A. | — | — | 0 |
| AS7870US | WHY - The Why? Network | — | — | 0 |
| AS7879US | DIMENSION-NET-1 - Dimension Enterprises, Inc. | — | — | 0 |
| AS7892US | BELLSOUTH-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS7893US | BELLSOUTH-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS7894US | BELLSOUTH-NET-BLK2 - AT&T Enterprises, LLC | — | — | 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 |