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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS2916US | CYBER-AS - Creative Cybernetics | — | — | 0 |
| AS3016US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3053US | RICE-AS3053 - Rice University | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS2965US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS244US | DNIC-AS-00244 - United States Department of Defense (DoD) | — | — | 0 |
| AS62505US | AS-PHX - Noble Systems Corporation | — | — | 0 |
| AS403185US | GOTSCHNA - Gotschna | — | — | 0 |
| AS403183US | CORNINGCU-01 - Corning | — | — | 0 |
| AS403018US | TITANFORGE - NodeNinja | — | — | 0 |
| AS403087US | RBNOC - RB | — | — | 0 |
| AS11US | HARVARD - Harvard University | — | — | 0 |
| AS1400US | T2-CT-ASC - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1340US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS402925US | ZENTRO-INTERNET-FLORIDA - Everywhere | — | — | 0 |
| AS700US | ROKNET-AS - The Boeing Company | — | — | 0 |
| AS689US | MERIT-AS-31 - Merit Network Inc. | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |
| AS23440US | PEAK10CIN - Flexential Corp. | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS30266US | RF-SJC-DATACENTER - Rodan & Fields LLC | — | — | 0 |
| AS30126US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS29876US | VIRTUAL-TECHNOLGOIES-AND-SOLUTIONS - Virtual Technologies and Solutions LLC | — | — | 0 |
| AS26033US | VIRTU-26033 - Virtu Financial Operating LLC | — | — | 0 |
| AS27538US | NOBLEENERGY-ASN2 - Chevron Corporation | — | — | 0 |
| AS27525US | FNF-CLOUD2 - Fidelity National Financial Inc. | — | — | 0 |
| AS27273US | DC37 - District Council 37 | — | — | 0 |
| AS27354US | EQUINIX-CX-MI - Equinix, Inc. | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS19059US | CODERO-ASHBURN - Patmos Hosting, Inc. | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS403031US | R7LABS - r7labs | — | — | 0 |
| AS17284US | VONAGE-17284 - Vonage Holdings, Inc. | — | — | 0 |
| AS17228US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS16806US | AVLNA-INTERNET - AVL North America, Inc. | — | — | 0 |
| AS16967US | SBCIDC-DLLSTX - AT&T Enterprises, LLC | — | — | 0 |
| AS22321US | PLUMCHOICE-DC1 - PlumChoice | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS16512US | RACKIFI - Fiberifi | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS20000US | FULCRM-00 - Fulcrum Analytics, Inc | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |