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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| SOUTHWESTERN-WIRELESS - Southwestern Wireless, Inc. |
| 512 |
| — |
| 2 |
| AS393534US | FHLBM-AS - Federal Home Loan Bank of Des Moines | 512 | — | 2 |
| AS40338US | B-F - Brown-Forman Corporation | 512 | — | 1 |
| AS403010US | NOPING - 1ncrivel | 512 | 257 | 4 |
| AS53709US | SPORTING-KC - ONGOAL, LLC | 512 | — | 1 |
| AS13510US | BAYSTATEHEALTH - Baystate Health, Inc. | 512 | — | 2 |
| AS397633US | WWE-CORP - WWE | 512 | — | 2 |
| AS23463US | LONEPINECAPITAL - Lone Pine Capital LLC | 512 | — | 2 |
| AS53581US | IDL-76-53581 - Inland FIber | 512 | — | 2 |
| AS393322US | CALERO - Calero MDSL | 512 | — | 1 |
| AS54620US | GNSGLOBAL - Generic Network Systems, LLC | 512 | — | 2 |
| AS30489US | MKPCAP - MKP Capital Management, LLC | 512 | — | 2 |
| AS395433US | D214 - Township High School District 214 | 512 | — | 2 |
| AS26705US | WBNET-01 - Whatabrands LLC | 512 | — | 2 |
| AS399658US | CH3 - Guaranteed Rate Inc | 512 | — | 2 |
| AS53578US | DISNEY-WDAS-AS - Disney Worldwide Services, Inc. | 512 | — | 2 |
| AS396877US | VINTERCHANGE - Vinterchange, Inc | 512 | — | 2 |
| AS394823US | TFFI - Taylor Fresh Foods, Inc. | 512 | — | 2 |
| AS400042US | CRC-RITA-01 - Campus Research Corporation | 512 | 4.1K | 3 |
| AS397678US | RRIS-01 - Red Rock Information Security, LLC | 512 | — | 2 |
| AS7234US | RUSSELL7234 - Frank Russell | 512 | — | 1 |
| AS401730US | BEACONBAYTECHNOLOGIES - Beacon Bay Technologies Inc | 512 | — | 2 |
| AS394656US | CPA-AS1 - Canaveral Port Authority | 512 | — | 2 |
| AS25952US | AEAINVESTORS - AEA Investors Inc. | 512 | — | 2 |
| AS395320US | LAKE-CHARLES-MEMORIAL-HOSPITAL - Lake Charles Memorial Hospital | 512 | — | 2 |
| AS19691US | 888-US - 888 US Inc. | 512 | — | 2 |
| AS13903US | UNITEDLAYER-2 - Unitedlayer, Inc. | 512 | — | 2 |
| AS393888US | SQUAR-12-AS-1 - SQUARETRADE, INC. | 512 | — | 2 |
| AS23406US | CHOATEHALLSTEWART - CHOATE, HALL & STEWART, LLP | 512 | — | 2 |
| AS40347US | EAUCLAIRE-COUNTY - Eau Claire County | 512 | — | 1 |
| AS54787US | MYRIAD-SSF-01 - Myriad Genetics, Inc. | 512 | — | 2 |
| AS23356US | LAFC - Los Angeles Football Club | 512 | — | 2 |
| AS23010US | FFHSJ - Fried, Frank, Harris, Shriver & Jacobson LLP | 512 | — | 2 |
| AS398705US | CENSYS-ARIN-02 - Censys, Inc. | 512 | 2 | 4 |
| AS31823US | ITIVITI-USA - Itiviti USA, Inc. | 512 | — | 2 |
| AS12209US | GIROSOL - Girosol, Corp. | 512 | — | 2 |
| AS396395US | ALLIANTINSURANCE - Alliant Insurance Services, Inc. | 512 | — | 2 |
| AS26714US | NORTHEAST-TEXAS-COMMUNITY-COLLEGE - Northeast Texas Community College | 512 | — | 2 |
| AS32454US | PRESIDENTIAL-PRAYER-TEAM - The Presidential Prayer Team, Inc. | 512 | — | 2 |
| AS400125US | AUSTIN-ARENA-COMPANY - AUSTIN ARENA COMPANY, LLC | 512 | — | 2 |
| AS18601US | SMART-CITY-CBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 512 | — | 1 |
| AS27360US | KWIKTRIP-AS - Kwik Trip Inc. | 512 | 16 | 3 |
| AS19622US | GHI301PENOBSCOT - Genomic Health, Inc. | 512 | — | 2 |
| AS47016US | EXTRON-ELECTRONICS - Extron Electronics | 512 | — | 2 |
| AS33014US | MARLINLEASING - MARLIN LEASING CORPORATION | 512 | 1 | 3 |
| AS27369US | SWEDISH - Swedish Covenant Hospital | 512 | — | 2 |
| AS401468US | WVW - WvW | 512 | 257 | 4 |