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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 |
| — |
| — |
| 0 |
| AS46684US | GMGLLC - Gateway Mortgage Group LLC | — | — | 0 |
| AS46704US | SOFTLAYER-WDC01 - IBM Cloud | — | — | 0 |
| AS46888US | OSS-01 - Online Spam Solutions LLC | — | — | 0 |
| AS46914US | JHPIEGO - Jhpiego Corporation | — | — | 0 |
| AS46987US | RITTCT020 - Ritter Communications | — | — | 0 |
| AS47076US | LANDAUER-IL - Landauer, Inc. | — | — | 0 |
| AS53376US | UTC-OVERSEAS - UTC Overseas, INC. | — | — | 0 |
| AS53452US | UHC-4 - United Hospital Center | — | — | 0 |
| AS53492US | CVTYBGP2 - Coventry Health Care, Inc. | — | — | 0 |
| AS53650US | LPS-7 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS53686US | ASN-CC-877 - Clearesult Consulting Inc. | — | — | 0 |
| AS53692US | ISN-4 - Interop Show Network | — | — | 0 |
| AS53707US | KINGSLAND - Hargray Communications Group, Inc. | — | — | 0 |
| AS53739US | ISTINC - International Science and Technology, Inc. | — | — | 0 |
| AS53822US | MDX-MEDICAL - Sapphire Digital | — | — | 0 |
| AS53879US | HRSA-AS001 - THE HAMPTON ROADS SHIPPING ASSOCIATION | — | — | 0 |
| AS53880US | VNSNY-AS - Visiting Nurse Service of New York | — | — | 0 |
| AS53887US | OIC-EUG - Oregon Ice Cream, LLC | — | — | 0 |
| AS53894US | QNSCLOUD-ASN1 - QNS | — | — | 0 |
| AS53919US | COUCHBASE - COUCHBASE, INC | — | — | 0 |
| AS53950US | ASHEREFARGO - HERE North America LLC | — | — | 0 |
| AS53961US | INFINITY-8-BROADBAND - Infinity 8 Broadband LLC | — | — | 0 |
| AS54033US | PHILLYIX-RS - Philadelphia Internet Exchange | — | — | 0 |
| AS54065US | BARRY146 - Barry Communications, Inc. | — | — | 0 |
| AS54074US | AL-3017-54074 - Avature Limited | — | — | 0 |
| AS54112US | MACST-SV4 - MacStadium, Inc. | — | — | 0 |
| AS54372US | DROPBOX-CORP - Dropbox, Inc. | — | — | 0 |
| AS54422US | RIVERSIDECENTER - Riverside Center for Innovation | — | — | 0 |
| AS54432US | VIRTUOZZO-US - Virtuozzo Inc. | — | — | 0 |
| AS54464US | D4LLC - D4 LLC | — | — | 0 |
| AS54475US | ANSI - Advanced Data Structures Inc. | — | — | 0 |
| AS54508US | ST-ROC - Mitel Networks, Inc. | — | — | 0 |
| AS54510US | HUGE-NETWORKS - Huge | — | — | 0 |
| AS54756US | SOUNDHOUND - SoundHound, Inc. | — | — | 0 |
| AS54768US | MYHERITAGE - MyHeritage (USA) Inc. | — | — | 0 |
| AS54812US | CODERO-ORD - Patmos Hosting, Inc. | — | — | 0 |
| AS54907US | NCOLNET - NCOL.NET, Inc. | — | — | 0 |
| AS55029US | INJECTBASE - Injectbase | — | — | 0 |
| AS55036US | NETEASY-US-ARIN - Net Easy, Inc. | — | — | 0 |
| AS55094US | ACTIVE-ASN2 - ACTIVE NETWORK, LLC | — | — | 0 |
| AS55097US | MICROOFFICE - Micro Office Solutions | — | — | 0 |
| AS55147US | SKYLINE-TECHNOLOGY-SOLUTIONS - Skyline Technology Solutions | — | — | 0 |
| AS55191US | WANSIX-GLOBALNET - WANSIX | — | — | 0 |
| AS55237US | WFSCORP-AS - Wausau Financial Systems, Inc. | — | — | 0 |
| AS58296US | CyberHeat Cyberheat.io, LLC | — | — | 0 |
| AS60261US | LLNW-AE Uplynk, Inc | — | — | 0 |