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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. | 211.2M | 21,144 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.1M | 3,642 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,945 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,376 |
| KN-DFW-ASN - KODIAK NETWORKS, INC. |
| 1.8K |
| 6 |
| 13 |
| AS19749US | GNC-LIVE-WELL - GNC | 1.8K | — | 7 |
| AS40810US | EY-AS-SG - Ernst & Young LLP | 1.8K | — | 5 |
| AS40596US | SOUNDBITE - Soundbite Communications, Inc. | 1.8K | — | 4 |
| AS212879US | IMO PageBites Inc | 1.8K | — | 7 |
| AS20368US | SMART-CITY-INCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 3 |
| AS23268US | NEULION - NeuLion, Inc. | 1.8K | — | 7 |
| AS30321US | BURNINGMAN - Burning Man | 1.8K | — | 7 |
| AS398945US | UPWARD-BROADBAND-2 - Upward Broadband LLC | 1.8K | — | 6 |
| AS30202US | LEVEL-IV - Level IV | 1.8K | — | 7 |
| AS40113US | SLHS-AS - ST. LUKE'S HEALTH SYSTEM, LTD. | 1.8K | — | 7 |
| AS32337US | NOWCOM-BGP - Nowcom Corporation | 1.8K | — | 6 |
| AS394738US | COLOCROSSING - HostPapa | 1.8K | — | 3 |
| AS394765US | VERINT - Verint Americas Inc | 1.8K | — | 7 |
| AS14211US | GOTHAM-WEB-SERVICES - Gotham Web Services, Inc. | 1.8K | — | 6 |
| AS6169US | CLOUD-42-6169 - Kentik Technologies, Inc. | 1.8K | 16 | 5 |
| AS394205US | 5THCOLUMN - 5THCOLUMN LLC | 1.8K | — | 4 |
| AS23000US | WESCOM - Wescom Credit Union | 1.8K | — | 5 |
| AS393827US | BJWC - BJS WHOLESALE CLUB | 1.8K | — | 6 |
| AS394562US | STRIPE2 - Stripe, Inc. | 1.8K | — | 7 |
| AS398549US | ZERO-ATTACK-VECTOR - Zero Attack Vector LLC | 1.8K | 29.5K | 48 |
| AS706US | TEST-AUSTIN-IBM-AS - Advanced Workstations Division, IBM Corporation | 1.8K | — | 7 |
| AS400475US | NUCLEARFALLOUT-DAL - Nuclearfallout Enterprises, Inc. | 1.8K | 4.1K | 8 |
| AS11892US | PEARSON-NA - NCS Pearson Inc. | 1.8K | — | 4 |
| AS27326US | VHSA-AS - VCU HEALTH SYSTEM AUTHORITY | 1.8K | — | 7 |
| AS22744US | WRIGHT-EXPRESS - Wex Inc. | 1.8K | — | 5 |
| AS32861US | MACQUARIE-GLOBAL-SERVICES-USA-LLC - Macquarie Global Services (USA) LLC | 1.8K | — | 6 |
| AS19734US | NTS-NACOGDOCHES-01 - Vexus Fiber | 1.8K | — | 3 |
| AS21952US | NEILL-CORPORATION - Neill Corporation | 1.8K | — | 4 |
| AS11189US | CFL-AS1 - Caliber Home Loans, Inc. | 1.8K | — | 4 |
| AS32164US | SECURED-SERVERS - SECURED SERVERS LLC | 1.8K | — | 3 |
| AS62952US | EVACOMM - Velocity Networks, Inc. | 1.8K | — | 4 |
| AS40584US | AS40584 - Enova International, Inc. | 1.8K | — | 6 |
| AS55253US | CAA-55253 - Creative Artists Agency, LLC | 1.8K | — | 7 |
| AS26239US | ATLASAIR - Atlas Air, Inc. | 1.8K | — | 4 |
| AS396432US | JH-US-01 - JAMES HARDIE BUILDING PRODUCTS, Inc. | 1.8K | — | 7 |
| AS23149US | BBW - BATH & BODY WORKS, INC. | 1.8K | — | 4 |
| AS393458US | NUCLEARFALLOUT-ATL - Nuclearfallout Enterprises, Inc. | 1.8K | 4.1K | 8 |
| AS22104US | GELB - Gelber Group, LLC | 1.8K | — | 4 |
| AS396977US | ABCBSNET - USAble Mutual Insurance Company | 1.8K | — | 7 |
| AS201217US | radishcloud RADISHCLOUD TECHNOLOGY LLC | 1.8K | 90.2K | 55 |
| AS398230US | RTEBB-NET1 - Roggen Enterprises BroadBand, LLC | 1.8K | 4.1K | 4 |
| AS203483US | garmin-emea Garmin International, Inc. | 1.8K | 2 | 6 |
| AS395137US | EPC-55-ASN - Edgewell Personal Care Brands, LLC | 1.8K | — | 7 |
| AS16581US | DEEPINFRA-01 - Deep Infra Inc. | 1.8K | — | 7 |
| AS11159US | LAPL-LAPUBLICLIBRARY - Los Angeles Public Library | 1.8K | — | 7 |
| AS55056US | CBC-ISPA-CUSTFACING - Central Bancompany, Inc. | 1.8K | — | 5 |