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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,632 |
| 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.
32,210 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 | 4,359 |
| 256 |
| — |
| 1 |
| AS14623US | LCU-NET - Lubbock Christian University | 256 | — | 1 |
| AS402790US | HOSHINET - Walrus | 256 | — | 1 |
| AS26226US | LOYOL-1-ASN - Loyola High School of Los Angeles | 256 | — | 1 |
| AS40645US | GWAEA-AS01 - Grant Wood Area Education Agency | 256 | — | 1 |
| AS5733US | MONRO-1 - Monroe County | 256 | — | 1 |
| AS30087US | APCO - Automobile Protection Corporation | 256 | — | 1 |
| AS54025US | CAPELLAUNIVERSITY - Capella University | 256 | — | 1 |
| AS2723US | ENDURANCE - ENDURANCE REINSURANCE CORPORATION OF AMERICA | 256 | — | 1 |
| AS395159US | BOULDER-COMMUNITY-HEALTH - Boulder Community Hospital | 256 | — | 1 |
| AS14906US | MAXIM-7227 - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS54924US | NAROPA-UNIVERSITY-BOULDERMAIN - NAROPA UNIVERSITY | 256 | — | 1 |
| AS398178US | TELCION-NETOPS-01 - Telcion Communications Group | 256 | — | 1 |
| AS19417US | CENTR-65-ASN - Centra-Larm Monitoring, Inc. | 256 | — | 1 |
| AS399119US | TOP-TVMASTERS - TV Masters, LLC | 256 | — | 1 |
| AS395016US | WAKE-WIRELESS - WAKE WIRELESS | 256 | 65.5K | 2 |
| AS26738US | DEERFIELD - Deerfield Partners, L.P. | 256 | — | 1 |
| AS400057US | UPSTATE-NIAGARA-COOP-2021 - Upstate Niagara Cooperatives | 256 | — | 1 |
| AS20387US | SHAKECLOUD - Shake Cloud Inc | 256 | — | 1 |
| AS63460US | DIGITALSIMPLISTICS - Digital Simplistics, Inc. | 256 | — | 1 |
| AS15338US | CEROBI - CEROBI LLC | 256 | — | 1 |
| AS401349US | ZOLL-LIFEVEST - ZOLL Medical Corporation | 256 | 1 | 2 |
| AS27244US | SMI-NET - Speedway Motorsports, LLC | 256 | — | 1 |
| AS394662US | UFAASNUM - Unified Fire Authority | 256 | 1 | 2 |
| AS13596US | RYMAX-CORP - Rymax Corp | 256 | — | 1 |
| AS25973US | AS-GTT-25973 - PacketExchange, Inc | 256 | 1 | 2 |
| AS393272US | PORT-MADISON-ENTERPRISES - Port Madison Enterprises | 256 | — | 1 |
| AS21626US | CLEARSKYNETWORK - clearskynetwork | 256 | — | 1 |
| AS1023US | COMPUTER-TEAM-INC - COMPUTER TEAM INC. | 256 | — | 1 |
| AS394549US | GEMAHS01 - GEMA/HS | 256 | — | 1 |
| AS17297US | COC-TX-ASN-17297 - CITY OF CARROLLTON - TEXAS | 256 | — | 1 |
| AS47040US | DELTAPRODUCTS-AS - Delta Products Corporation | 256 | — | 1 |
| AS53328US | RYDIN-ASN-01 - Rydin | 256 | — | 1 |
| AS395144US | INDY-ASN-01 - Independent Connections LLC | 256 | — | 1 |
| AS56773US | mox Mox Networks, LLC | 256 | — | 1 |
| AS46769US | TELECAST COMMUNICATIONS - Telecast Communications | 256 | — | 1 |
| AS400545US | CYGNUS-COMMUNICATIONS - Cygnus Communications | 256 | — | 1 |
| AS40008US | REDWOOD-MATERIALS - Redwood Materials, Inc. | 256 | — | 1 |
| AS401117US | EHL - EQM Holdings LLC | 256 | 1 | 2 |
| AS30019US | PSBC - BLOODWORKS NORTHWEST | 256 | — | 1 |
| AS53417US | RUDOLPHS-INC - Rudolph's, Inc. | 256 | — | 1 |
| AS30034US | VCS-ASN - The Vermont Country Store, Inc. | 256 | — | 1 |
| AS1080US | WPCCU-ASN-01 - Water and Power Community Credit Union | 256 | — | 1 |
| AS401209US | AS-PACS-1 - Precision Accounting and Consulting Services, Inc. | 256 | 17 | 3 |
| AS53733US | JERICH-USA-INC - Jerich USA Inc. | 256 | — | 1 |
| AS397425US | MASON-1 - Masonicare Corporation | 256 | — | 1 |
| AS36652US | KOCHTRUCKING - KOCH TRUCKING | 256 | — | 1 |