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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| — |
| — |
| 0 |
| AS36461US | SPGLOBAL-CAPIQ-ACQUIRED - S&P Global Inc. | — | — | 0 |
| AS36621US | DGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36622US | IGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36650US | NEXTCO-AS - Nextera Communications LLC | — | — | 0 |
| AS36684US | ALLO-COMM-AS2 - Allo Communications LLC | — | — | 0 |
| AS36713US | APS - The American Physical Society Incorporated | — | — | 0 |
| AS39994US | NBSVOICE32AOA01 - Fusion, LLC | — | — | 0 |
| AS40078US | FAIRMONTSTATE - Fairmont State University | — | — | 0 |
| AS40130US | KITTELSON-DIGIWEST-PORTLAND - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40155US | AS40155 - Fin Topco (US), Inc. | — | — | 0 |
| AS40158US | NCSD-01 - Department of Homeland Security | — | — | 0 |
| AS40223US | LMSD-ORG - Lower Merion School District | — | — | 0 |
| AS40283US | MDRX - Netsmart Technologies | — | — | 0 |
| AS40344US | DFW-COLO-1 - Check Point Software Technologies, Inc. | — | — | 0 |
| AS40562US | CLEARMAIL - CLEARMAIL INC. | — | — | 0 |
| AS40574US | CVLAB-OH-AS-01 - Steege IT Services LLC | — | — | 0 |
| AS40578US | VANGUARDHEALTHSYSTEMS-PHAZ - Vanguard Health Systems | — | — | 0 |
| AS40602US | HUMEDICA - Humedica, Inc. | — | — | 0 |
| AS40671US | BORN-CAPITAL-LLC - Born Capital LLC | — | — | 0 |
| AS40684US | STCLAIRCCC-AS - St. Clair County Community College | — | — | 0 |
| AS40708US | ELAB-ASN - Sabre GLBL Inc. | — | — | 0 |
| AS40778US | ICI-NYC - Incomm | — | — | 0 |
| AS40846US | 3EX HOSTING BOCA RATON LLC - 3EX Hosting Boca Raton LLC | — | — | 0 |
| AS40901US | KCMC-3-ASN - Kensico Capital Management Corporation | — | — | 0 |
| AS40935US | DATACATE-AS3 - Datacate Inc. | — | — | 0 |
| AS46085US | NET32 - Net32, Inc. | — | — | 0 |
| AS46096US | EDICT-INC - EDICT, Inc. | — | — | 0 |
| AS46368US | ORAL-5-46368 - DECCA Cable | — | — | 0 |
| AS46418US | BAKER-AUBURNHILLS - Baker College | — | — | 0 |
| AS46497US | TIABI - TIABI LLC | — | — | 0 |
| AS46589US | KYN-GTS - Kyndryl | — | — | 0 |
| AS46645US | GROQ-PROD-5 - Groq, Inc. | — | — | 0 |
| AS46656US | MEETME-1 - MeetMe, Inc. | — | — | 0 |
| AS46661US | ILLUMINATEDHOSTING - Illuminated Hosting Service, LLC | — | — | 0 |
| AS46728US | HWCO - Howard, Wershbale & Co. | — | — | 0 |
| AS46781US | NTURNET - NTURNET TECHNOLOGY, LLC | — | — | 0 |
| AS46894US | GABBIT-WEST-LV - Gabbit, LLC | — | — | 0 |
| AS46907US | KICKB-1-46907 - Kickbox Inc | — | — | 0 |
| AS46942US | IHS-VWC - IHS Global, Inc. | — | — | 0 |
| AS46945US | NUSTAR-ENERGY - Energy Transfer LP | — | — | 0 |
| AS47006US | NETRIX - Netrix LLC | — | — | 0 |
| AS48337US | LINODE-AS Linode, LLC | — | — | 0 |
| AS50236US | Vertexlink_Communications VertexLink Inc. | — | — | 0 |
| AS50291US | BASED BNS Services LLC | — | — | 0 |
| AS53250US | ATLANTICBB-AIKEN - Breezeline | — | — | 0 |
| AS53253US | NINJA-MS-CACHE - Ninja-IX Corporation | — | — | 0 |