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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS402957US | COOPER - Cooper | 256 | — | 1 |
| AS62808US | MCGRATH-NORTH - McGrath North | 256 | — | 1 |
| AS207787US | ALLTHINGSTECH All Things Technology LLC | 256 | 1 | 2 |
| AS46995US | JUMP-WIRELESS - Jump Wireless LLC | 256 | — | 1 |
| AS14272US | MCPC-ASN - MCPc Inc. | 256 | — | 1 |
| AS30251US | FALKEN - Falken Tire Corporation | 256 | — | 1 |
| AS199897US | Vexta-Data-Solutions Vexta Data Solutions LLC | 256 | — | 1 |
| AS26765US | REDUNDANT-INTERNET - Bountiful City | 256 | — | 1 |
| AS399292US | UAMTCORP-01 - UAM Technologies Corp | 256 | — | 1 |
| AS32532US | KMC-37-ASN - Kuakini Medical Center | 256 | — | 1 |
| AS203023US | KNL-23-203023 - Kawaii Networks LLC | 256 | 65.5K | 2 |
| AS394763US | CCCERA-AS - Contra Costa County Employees Retirement Association | 256 | 1 | 2 |
| AS32993US | SIMONSFOUNDATION-FI - The Simons Foundation, Inc. | 256 | 1 | 2 |
| AS53614US | 53614 - Bob's Discount Furniture, LLC | 256 | — | 1 |
| AS21986US | WPP-ET-CAMPUS-WASHINGTONDC - Young & Rubicam LLC | 256 | — | 1 |
| AS63207US | LBJI-ASN - Lakeshore Bone & Joint, Institute P.C. | 256 | — | 1 |
| AS394775US | TELEPEER-AS - Telepeer Inc | 256 | — | 1 |
| AS13575US | WISCONSINPUBLICPOWER - Wisconsin Public Power, Inc. | 256 | — | 1 |
| AS402522US | TAL-ASN - TACKLE | 256 | — | 1 |
| AS53417US | RUDOLPHS-INC - Rudolph's, Inc. | 256 | — | 1 |
| AS393575US | PCSIA-3710 - Professional Computer Solutions, LLC | 256 | 1 | 2 |
| AS5641US | TVH-289 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS394364US | RD-ASN - Red Diamond, Inc. | 256 | — | 1 |
| AS47058US | NETWORK-ENGINEER - THE GOOD SAMARITAN HOSPITAL OF LEBANON, PENNSYLVANIA | 256 | — | 1 |
| AS63013US | EHRTECH-N1 - EHR Technology Group, L.L.C. | 256 | — | 1 |
| AS16541US | ERICKSON-AS - Erickson Living Management, LLC | 256 | — | 1 |
| AS394555US | APPLIED-SYSTEMS-LAB - APPLIED SYSTEMS, INC | 256 | — | 1 |
| AS16389US | ST-INTERNET-AS - Shurtape Technologies, LLC | 256 | — | 1 |
| AS54406US | CONVERMAX - Convermax Corp | 256 | — | 1 |
| AS26759US | SAGOFIBER-01 - Sago Fiber LLC | 256 | 65.5K | 2 |
| AS63064US | YCAS - Yotta Connect LLC | 256 | — | 1 |
| AS396514US | CI-AS - Carey International, Inc. | 256 | — | 1 |
| AS18893US | SELECT-EQUITY - Select Equity Group, Inc. | 256 | — | 1 |
| AS401712US | NJ-US-NEBIUS - Nebius Inc. | 256 | — | 1 |
| AS33589US | CITYOFSOUTHLAKE - City of Southlake | 256 | — | 1 |
| AS401760US | NETKIND - Netkind LLC | 256 | 1 | 2 |
| AS40791US | COR-ASN - City of Redding | 256 | — | 1 |
| AS54751US | VEDP - Virginia Economic Development Partnership | 256 | — | 1 |
| AS16407US | LINDEN-ADVISORS - Linden Investors LP | 256 | — | 1 |
| AS198015US | INOXWEB-LLC Inoxweb LLC | 256 | — | 1 |
| AS29718US | TNEMEC-AS - Tnemec Company Incorporated | 256 | — | 1 |
| AS33249US | ZNT-AS-01 - Zurita Network Technologies LLC | 256 | — | 1 |
| AS402632US | WELLMAN-INDUSTRIES - Wellman | 256 | 256 | 2 |
| AS7362US | HST-CHRON - Hearst Newspapers, LLC | 256 | — | 1 |
| AS19253US | SBAINC-AS - SBA, Inc | 256 | — | 1 |
| AS400524US | LCI-ASN-01 - LCI II, Inc. | 256 | — | 1 |