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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS14292US | CSC-VISA - CSRA Consular Services Inc. | 256 | — | 1 |
| AS399514US | HORIZONBANK - Horizon Bank | 256 | — | 1 |
| AS401860US | FIBERWISE001 - FiberWise LLC | 256 | 4.1K | 2 |
| AS401643US | DRAGONFLY-INTERNET-01 - Dragonfly Internet | 256 | 65.5K | 2 |
| AS397799US | SEMINOLE-CLERK-OF-COURTS-AND-COMPTROLLER - Seminole County Clerk of Courts and Comptroller | 256 | — | 1 |
| AS64272US | DADUS - DOT AZ DOT US DOMAINS OF ARIZONA, LLC | 256 | 4.1K | 2 |
| AS22289US | CEFCU - CEFCU | 256 | — | 1 |
| AS393756US | TX-TCU - texanscu | 256 | — | 1 |
| AS21950US | AUTOTEC - AutoTec LLC | 256 | — | 1 |
| AS400756US | LODGEWORKS - LodgeWorks | 256 | — | 1 |
| AS25743US | EGRMP-NET - EGRMP | 256 | — | 1 |
| AS891US | SB-AS-001 - Smart Bid Inc | 256 | — | 1 |
| AS403069US | DEVVENTURE - AutoSweet | 256 | — | 1 |
| AS63477US | CONIFER-EDGE - Coniferous Systems, LLC | 256 | 1 | 2 |
| AS393399US | SNL-KTF - Sandia National Laboratories | 256 | — | 1 |
| AS10919US | TROYFP - Troy Corporation | 256 | — | 1 |
| AS397871US | COD-PUBLIC-148 - City Of Detroit | 256 | — | 1 |
| AS394664US | PECKHAM-INC - Peckham, Inc. | 256 | — | 1 |
| AS62822US | CENTENARYCOLLEGE - Centenary University | 256 | — | 1 |
| AS400985US | TRCAS - Three Rivers Casino and Resort | 256 | 2 | 3 |
| AS396114US | GENERAL-ASN - SEARHC | 256 | — | 1 |
| AS401530US | RETAILSOLUTIONS-ASN-01 - Retail Solutions, LLC | 256 | — | 1 |
| AS22262US | IDENTRUST-DR-ASN - IdenTrust | 256 | — | 1 |
| AS394658US | TSG-INET-01 - Sedona Technologies | 256 | — | 1 |
| AS40683US | USPI - United Surgical Partners International, Inc. | 256 | — | 1 |
| AS36607US | ACM - Association for Computing Machinery, Inc | 256 | — | 1 |
| AS40549US | XPRES-PA - XPRESSBET INC. | 256 | — | 1 |
| AS402837US | OMOBIO - Omobio | 256 | — | 1 |
| AS396093US | BRS-AS-124 - Big River Steel, LLC | 256 | — | 1 |
| AS6343US | OMEGASYS-DC1 - Omega Systems Consultants, LLC | 256 | — | 1 |
| AS35952US | PARADOXNETWORKS-INC - ParadoxNetworks, Inc | 256 | 1 | 2 |
| AS396159US | PUD3-WA - PUD3 | 256 | — | 1 |
| AS46679US | AS-REDCOM-NET - REDCOM Laboratories, Incorporated | 256 | — | 1 |
| AS33609US | WINSTON-BRANDS-INC - Winston Brands, Inc. | 256 | — | 1 |
| AS401280US | TESRHO - TECH SERVE HOSTING LLC | 256 | 256 | 2 |
| AS46515US | TOONTOWN - Toons of the World Foundation | 256 | 2 | 2 |
| AS395269US | WAHL-CLIPPER - Wahl Clipper | 256 | — | 1 |
| AS46170US | BASTION-CYBER-US01 - bastioncyber.ai | 256 | 1 | 2 |
| AS2538US | IBM-PLP - IBM | 256 | — | 1 |
| AS402173US | SCHENANIGANS-01 - I Need Help Alliance | 256 | 5 | 6 |
| AS401274US | AWSOM - Alice L. Walton School of Medicine | 256 | — | 1 |
| AS393530US | TLU - TEXAS LUTHERAN UNIVERSITY | 256 | — | 1 |
| AS202397US | nexeon Nexeon Technologies, Inc. | 256 | — | 1 |
| AS399255US | NORTHWEST-OHIO-BROADBAND-LLC - NORTHWEST OHIO BROADBAND, LLC | 256 | — | 1 |
| AS7754US | MCAFEE - McAfee, LLC | 256 | — | 1 |
| AS401408US | SALADCLOUD - Salad Technologies, Inc. | 256 | 256 | 2 |