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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| — |
| 2 |
| AS29822US | ARCHER1 - Archer and Greiner | 512 | — | 2 |
| AS27363US | FOXPITT-KELTON - Swiss Re America Holding Corporation | 512 | — | 2 |
| AS112US | AS112-PROJECT - DNS-OARC | 512 | 2 | 4 |
| AS54334US | SWIFTNODE-LLC - Swiftnode LLC | 512 | 3 | 5 |
| AS53682US | COLO-1 - Ntiva, Inc | 512 | — | 2 |
| AS398952US | AG-ASN - AMBRY GENETICS CORPORATION | 512 | — | 1 |
| AS40267US | PCTI - Passaic County Technical Institute | 512 | 16 | 3 |
| AS400012US | YISD-COLO-500 - Ysleta Independent School District | 512 | — | 2 |
| AS36009US | TGNA-KGW - TEGNA Inc. | 512 | — | 2 |
| AS31844US | HOLDBROTHERS - Tafferer Trading LLC | 512 | — | 2 |
| AS53697US | MOHELA - MOHELA | 512 | — | 2 |
| AS394498US | YMCA-OF-THE-NORTH - YMCA of the North | 512 | 1 | 3 |
| AS46924US | BJU-ASN - Bob Jones University | 512 | 2 | 4 |
| AS25836US | STERLING-JEWELERS - Sterling Jewelers Inc. | 512 | — | 2 |
| AS11741US | BENTONREA - BENTON REA POWERNET | 512 | — | 2 |
| AS54287US | ASXCIE-SJC - Axcient, Inc | 512 | — | 1 |
| AS32344US | CSD99 - Community High School District 99 | 512 | — | 2 |
| AS19542US | PLICO - Protective Life Corporation | 512 | — | 2 |
| AS54266US | ABCFINANCIAL - ABC Financial Services, Inc. | 512 | — | 2 |
| AS26282US | SYMANTEC-US - Avago Technologies U.S. Inc. | 512 | 2 | 4 |
| AS394528US | TRUWEST-CREDIT-UNION - Truwest Credit Union | 512 | — | 2 |
| AS396213US | USCUPSTATE - USC Upstate | 512 | — | 2 |
| AS6498US | INTRADO-CORP - West Technology Group, LLC | 512 | — | 2 |
| AS26503US | PHONECOM - Phone.com, Inc. | 512 | — | 2 |
| AS25964US | HCBE-17 - Henry County Board of Education | 512 | — | 2 |
| AS20203US | FIRST-FINANCIAL-BANK-NA - First Financial Bank NA | 512 | — | 2 |
| AS397645US | EPICGA-DC1-AS - Epic Games Inc. | 512 | — | 2 |
| AS27479US | LNSP - Lake Norman Security Patrol, Inc. | 512 | — | 2 |
| AS36173US | KCI - Kinetic Concepts, Inc. | 512 | — | 2 |
| AS21912US | PACIFICTERRACE-GUEST-INTERNET - Pacific Terrace Hotel | 512 | — | 1 |
| AS7820US | TOWERFCU-AS - Tower Federal Credit Union | 512 | — | 2 |
| AS32225US | MCGRAW-BCM - BCM One, Inc. | 512 | — | 2 |
| AS39990US | BCG - Boulder County Government | 512 | — | 2 |
| AS11765US | NETSURION-LLC-AS11765 - Netsurion LLC | 512 | — | 1 |
| AS21516US | ECH-2 - Ephrata Community Hospital | 512 | — | 2 |
| AS402251US | BOLD-ROOSEV-HED - Apogee Telecom Inc. | 512 | — | 2 |
| AS401700US | JOY-LABS-VENTURES - Joy Labs Ventures LLC | 512 | — | 1 |
| AS40490US | AS-AFILIAS-CTRL2 - Afilias, Inc. | 512 | 1 | 3 |
| AS29769US | AWT-ASN-29769 - Allwire Technologies LLC | 512 | 4.1K | 3 |
| AS394025US | ATHOME - At Home Stores LLC | 512 | — | 2 |
| AS53727US | AS-PENGUIN - Penguin Networks | 512 | 36 | 8 |
| AS396883US | MTG-RHR-ASN-01 - Millennium Technology Group, Inc. | 512 | — | 2 |
| AS398032US | CHEROKEE-COMMUNICATIONS - Cherokee Communications LLC | 512 | 4.1K | 3 |
| AS46084US | ASRCFH-NET - ASRC FEDERAL HOLDING COMPANY, LLC | 512 | — | 2 |
| AS54102US | FABFIBERNET - Fabulous Fiber LLC | 512 | 4.1K | 2 |
| AS396538US | NORTHSITE-DATA - Northsite Data, LLC | 512 | — | 1 |