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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 |
| 7.7K |
| — |
| 8 |
| AS399541US | WRC-AS - Western Reserve Communications, LLC | 7.7K | — | 8 |
| AS397016US | HAWKEYE-TELEPHONE-COMPANY - Hawkeye Telephone Company | 7.7K | — | 9 |
| AS23381US | TRAVELERS - Travelers Property Casualty Corp. | 7.7K | — | 21 |
| AS11289US | AS11289 - SANDISK TECHNOLOGIES, INC. | 7.7K | — | 12 |
| AS15191US | WIN-NET - Western Independent Networks, Inc. | 7.4K | 65.5K | 10 |
| AS62948US | ALRB - Air Link Rural Broadband, LLC | 7.4K | — | 9 |
| AS394625US | WHITELABELIT - WhiteLabel IT Solutions Corp | 7.4K | 65.5K | 20 |
| AS19627US | SOCANTEL-001 - South Canaan Telephone Company of PA | 7.4K | — | 15 |
| AS29765US | DATACHAMBERS - DataChambers, LLC | 7.4K | 768 | 11 |
| AS59729US | ITL-BG ROUTE 95 LLC | 7.4K | 65.5K | 19 |
| AS22065US | LFL-9 - LPL Financial | 7.4K | — | 22 |
| AS46294US | SCATUI - SCATUI | 7.4K | — | 17 |
| AS27569US | GVII - Grand Valley Internet | 7.4K | — | 11 |
| AS62579US | VIRTUALSHIELD - VirtualShield LLC | 7.4K | — | 29 |
| AS33623US | ALHNVL-HAYNEVILLE-TELEPHONE - Hayneville Telephone Company | 7.4K | — | 13 |
| AS33422US | NETC - New England Telehealth Consortium | 7.4K | — | 14 |
| AS11158US | NETDEPON - NTT America, Inc. | 7.4K | — | 29 |
| AS63107US | ECIN - Bijou Telephone Co-op Association, Inc. | 7.4K | — | 10 |
| AS394814US | ISP4LIFE - ISP4Life INC | 7.4K | 65.5K | 9 |
| AS21767US | WASHINGTON-COLLEGE - Washington College | 7.4K | — | 15 |
| AS46672US | COLOGIX-FL - Cologix, Inc | 7.4K | — | 6 |
| AS395180US | TRAVELERSPCAS3 - Travelers Property Casualty Corp. | 7.4K | — | 5 |
| AS400318US | VERSA-01 - Versa Networks, Inc. | 7.4K | 514 | 33 |
| AS20259US | CVTC - Copper Valley Long Distance, LLC | 7.4K | 65.5K | 5 |
| AS46552US | RSMUS-IAAS - RSM | 7.4K | — | 12 |
| AS36808US | PPHS-PALOMAR-POMERADO-HEALTH - Palomar Pomerado Health | 7.4K | — | 4 |
| AS3131US | TELEMEDIA-ASN - Tele-Media Solutions | 7.4K | 65.5K | 17 |
| AS1746US | SIRSIDYNIXAS - SirsiDynix | 7.4K | — | 16 |
| AS36730US | TRANSFORMYX - Transformyx, Inc. | 7.4K | — | 16 |
| AS23550US | HUB-ADVANCED-NETWORKS-LLC - HUB Advanced Networks, LLC | 7.4K | 65.5K | 30 |
| AS15048US | METLIFE-ASN - MetLife | 7.4K | — | 29 |
| AS40564US | VOCOM-LAX-QUINBY-1 - VOCOM International Telecommunication, INC. | 7.4K | 4.1K | 33 |
| AS23323US | NET-DVC - Diablo Valley College | 7.4K | — | 4 |
| AS26898US | CONNECT-ASN - Connect | 7.4K | — | 4 |
| AS14713US | HBL-35-14713 - Hosted Backbone | 7.4K | 65.5K | 18 |
| AS16805US | DATAPIPE-MID - DataPipe, Inc. | 7.4K | 65.5K | 8 |
| AS11333US | CYBERTRAILS - CyberTrails | 7.4K | — | 15 |
| AS397635US | PATHLINE-CAMPUS - Synopsys Inc. | 7.4K | — | 17 |
| AS401362US | HOST4NERD - HOST4NERD LLC | 7.4K | — | 29 |
| AS20300US | WT-AS1 - Woodstock Telephone Company | 7.4K | — | 7 |
| AS54864US | ROCKTENN - Rock-Tenn Company | 7.4K | — | 11 |
| AS54115US | FACEBOOK-CORP - Facebook Inc | 7.4K | 26 | 22 |
| AS11983US | TIKTOK-USDS - Tiktok U.S. Data Security Inc. | 7.4K | 15 | 44 |
| AS46691US | LUNAVI-GA - Lunavi, Inc. | 7.4K | 4.1K | 5 |
| AS394646US | EAGLEEYENETWORKS - Eagle Eye Networks, Inc | 7.3K | — | 25 |
| AS30286US | THM - ThreatMetrix Inc. | 7.2K | 5 | 30 |