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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 |
| 512 |
| 256 |
| 3 |
| AS62996US | OMR-01 - Unwin Company | 512 | — | 1 |
| AS395586US | KIRKLAND-ELLIS-MI - Kirkland & Ellis LLP | 512 | — | 2 |
| AS400656US | METRO-SERVICE - Metro Service Center | 512 | 65.5K | 2 |
| AS395324US | NETBLK-CBOCS-HO-NET - Cracker Barrel Old Country Store, Inc. | 512 | — | 2 |
| AS5728US | WORLDNET1 - AT&T Enterprises, LLC | 512 | — | 1 |
| AS397140US | ANB-NET - Amarillo National Bank | 512 | — | 2 |
| AS395523US | IGSENERGY - IGS Energy | 512 | — | 2 |
| AS20397US | BOXLAKE - Box Lake Networks, Inc. | 512 | — | 2 |
| AS395633US | WSU-EVT-AS - Washington State University | 512 | — | 2 |
| AS36525US | ALLEGIANCE-HEALTH - ALLEGIANCE HEALTH SERVICES | 512 | — | 2 |
| AS398843US | SABINO-WIFI-ASN - Sabino WiFi LLC | 512 | 65.5K | 3 |
| AS22270US | BANGOR-SAVINGS-BANK - Bangor Savings Bank | 512 | — | 2 |
| AS396890US | CITYOFREDMOND - City of Redmond Washington | 512 | — | 2 |
| AS53838US | BEACHBODYUS1 - Beachbody, LLC | 512 | — | 2 |
| AS398780US | BEC - Bluebonnet Electric Cooperative, Inc. | 512 | — | 2 |
| AS32470US | RFIH-NET4 - Retail Finance International Holdings, Inc. | 512 | 1 | 3 |
| AS53451US | NETX-INTERNET - NetX Internet, LLC. | 512 | — | 2 |
| AS13466US | MUZAK-AS - Muzak, LLC | 512 | — | 2 |
| AS17009US | SHOPTIKAL - Shopko Optical | 512 | — | 2 |
| AS16777US | NET-PROVPHP - Providence Health Plan | 512 | — | 2 |
| AS35855US | UCCU - UTAH COMMUNITY FEDERAL CREDIT UNION | 512 | — | 2 |
| AS54529US | LCRC-AS - Louisiana Cancer Research Center | 512 | — | 2 |
| AS26161US | TMEIC-A - TMEIC Corporation Americas | 512 | — | 2 |
| AS25729US | CITY-OF-IRVING - City of Irving | 512 | — | 2 |
| AS400659US | DAVEYGROUPLLC-ASN - Davey Group LLC | 512 | 1 | 3 |
| AS15053US | ROLL-GLOBAL-LLC - Roll Global LLC | 512 | — | 2 |
| AS393716US | INTRADA-AS000 - Intrada Technologies, Inc | 512 | — | 1 |
| AS394127US | ALACRITYSERVICES - Alacrity Services | 512 | — | 2 |
| AS397077US | AS11795 - Sony | 512 | 2 | 4 |
| AS36519US | CISCO-TTNA - CISCO SYSTEMS, INC. | 512 | 1 | 2 |
| AS40360US | PANERA - PANERA BREAD COMPANY | 512 | — | 2 |
| AS53674US | KYVONAS-01 - SupportCloud, LLC | 512 | — | 2 |
| AS22844US | TRADERJOE - TRADER JOE'S COMPANY | 512 | — | 2 |
| AS27206US | COSL-01 - City of Sugar Land | 512 | — | 2 |
| AS395976US | COMCAST-MES - Comcast Cable Communications, LLC | 512 | — | 2 |
| AS27480US | MTC-CORP - Management & Training Corporation | 512 | — | 1 |
| AS33420US | TCDI - Technology Concepts & Design, Inc. | 512 | — | 2 |
| AS32419US | BALDWIN-LYONS - Protective Insurance Corporation | 512 | — | 2 |
| AS26450US | CTDI-WC - CTDI | 512 | 274 | 21 |
| AS32300US | FTNFI-ASN - FTN Financial | 512 | — | 2 |
| AS32562US | SLACKER-1 - Slacker Inc. | 512 | — | 2 |
| AS55157US | COLLIERS - Colliers International | 512 | — | 2 |
| AS400516US | PARTSAUTHORITY - Parts Authority, LLC | 512 | — | 2 |
| AS54740US | DYNAWEB - Dynaweb Foundation | 512 | — | 2 |
| AS17405US | FISERV-CORPORATE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS397292US | GIGABEAM-INTERNET - Symplified Technologies LLC | 512 | — | 1 |