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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 1 |
| AS11144US | ADVENT-SOFTWARE - Advent Software | 1K | — | 4 |
| AS36061US | WATERLOO-01 - Waterloo Fiber | 1K | 4.1K | 2 |
| AS40640US | CAYUSEHOLDINGS-PEN-01 - CAYUSE TECHNOLOGIES LLC | 1K | — | 1 |
| AS26409US | LUCID-ASN - Lucid USA, Inc. | 1K | — | 3 |
| AS40429US | QISF - SETEL | 1K | — | 1 |
| AS10406US | ASN-TEKTRONIX - Tektronix, Inc. | 1K | — | 4 |
| AS395247US | ACC-AUS - Accruent, LLC | 1K | — | 2 |
| AS398698US | NETASSIST - NETASSIST LLC | 1K | 66K | 7 |
| AS33054US | MCCRACKENFS - McCracken Financial Software | 1K | — | 3 |
| AS15131US | DATASERV - DATASERV | 1K | — | 3 |
| AS398159US | RICEBELT-1 - RICE BELT TELEPHONE CO., INC. | 1K | — | 1 |
| AS396995US | BGP - Morris Hospital | 1K | — | 3 |
| AS398430US | SPEEDWAVZ - Speedwavz LLP | 1K | — | 4 |
| AS46735US | FARR-FIN - Certigo, Inc | 1K | — | 1 |
| AS36344US | ADVAN-CAST - Virtuozzo Inc. | 1K | — | 4 |
| AS40030US | FALLSNET - Fallsnet | 1K | — | 1 |
| AS400800US | DAYTON-CHILDRENS-HOSPITAL - Dayton Children's Hospital | 1K | — | 3 |
| AS13377US | RBB-ASN-1 - Rogue Broadband | 1K | 65.5K | 2 |
| AS15110US | HILLS-CCC-INET - Hillsborough County - Clerk of Circuit Court | 1K | — | 4 |
| AS400416US | TRADINGVIEW-INC - TradingView, Inc. | 1K | — | 4 |
| AS19463US | RISE-AS19463 - JAB Wireless, INC. | 1K | — | 4 |
| AS401800US | ILSOS - Illinois Secretary of State | 1K | — | 1 |
| AS64247US | UW-RESEARCH - University of Washington | 1K | — | 1 |
| AS400008US | ZOOT - Zoot Enterprises, Inc. | 1K | — | 4 |
| AS395003US | ABE-COMMERCE - AB E-Commerce, LLC | 1K | — | 4 |
| AS36124US | BIZVOX - BizVox Communications Inc | 1K | — | 4 |
| AS22851US | NSU-SD - Northern State University | 1K | — | 4 |
| AS13461US | OCC-AS13461 - The Options Clearing Corporation | 1K | — | 4 |
| AS11850US | MAGSNETLLC - Mags.Net, LLC | 1K | — | 4 |
| AS20201US | CARYCO-TECH - Caryco Tech | 1K | — | 4 |
| AS20332US | WINCHESTER-WIRELESS - Winchester Wireless | 1K | — | 1 |
| AS46833US | SENSUS-DATACENTERS - Sensus USA, Inc. | 1K | — | 2 |
| AS53315US | NEXUSIS - Nexus IS | 1K | — | 1 |
| AS399362US | SHIFT4-CORP - SHIFT4 PAYMENTS, LLC | 1K | — | 3 |
| AS17352US | APPLICATIONX - Application X | 1K | — | 4 |
| AS396054US | DWS-ANA-VISITOR - Disney Worldwide Services, Inc. | 1K | — | 3 |
| AS396828US | VRSN-AC50-340 - VeriSign Global Registry Services | 1K | 3 | 7 |
| AS32795US | HEARST-SERVICE-CENTER - HEARST CORPORATION | 1K | — | 3 |
| AS54821US | ALPINE-CONNECTIVE - Alpine Connective LLC | 1K | 4.1K | 2 |
| AS32509US | SEDGWICK-COUNTY-AS - Sedgwick County Information Services | 1K | — | 1 |
| AS398436US | HYPEBEASTSERVERS - hypebeastservers | 1K | — | 4 |
| AS46729US | SAINTLEOUNIVERSITY - Saint Leo University Incorporated | 1K | — | 2 |
| AS399886US | APOG-LYCOMING - Apogee Telecom Inc. | 1K | — | 3 |
| AS11999US | REJISCOMM-NET - REJIS Commission | 1K | — | 4 |
| AS393967US | LYNDEN - Lynden Incorporated | 1K | — | 3 |
| AS12198US | JSMSR-LLC - JSMSR Network | 1K | 292 | 26 |