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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 3 |
| AS15062US | MERIDIAN-BUSINESS-CENTERS - Meridian Business Centers | 768 | — | 2 |
| AS5052US | DNIC-AS-05052 - United States Department of Defense (DoD) | 768 | — | 3 |
| AS54651US | BLACK-DUCK-SOFTWARE-01 - Black Duck Software, Inc. | 768 | — | 2 |
| AS31824US | HF-MANAGEMENT-SERVICES-LLC - HF Management Services, LLC | 768 | — | 3 |
| AS19888US | BAUSCH-ISTA - Bausch Health US, LLC | 768 | — | 3 |
| AS19319US | CCN-DMZ - Bonneville Power Administration | 768 | — | 3 |
| AS33283US | MCSERVICES - MC Services | 768 | — | 2 |
| AS400260US | OLSON-NETWORK - Olson Tech, LLC | 768 | 256 | 3 |
| AS11066US | XPO LOGISTICS - XPO LOGISTICS INC | 768 | — | 3 |
| AS22535US | EPLINC - EPL INC | 768 | — | 3 |
| AS55088US | RWA-ASN - RWA Wealth Partners, LLC | 768 | — | 3 |
| AS395800US | JCPN-AS - JEFFERSON COUNTY PUD NO. 1 | 768 | — | 2 |
| AS401362US | HOST4NERD - HOST4NERD LLC | 768 | — | 3 |
| AS393320US | FORTY-NINERS-ASN-2024 - Forty Niners Holdings LP | 768 | — | 3 |
| AS400885US | OPTNET - Optimus Communications | 768 | — | 3 |
| AS46984US | CPF-AS - Charlotte Pipe and Foundry Company | 768 | — | 3 |
| AS395502US | JCOLO - JeffColo | 768 | 4 | 7 |
| AS394612US | UPMC-PINNACLE - UPMC | 768 | — | 3 |
| AS20040US | WESTERNAND-SOUTHERN-FINANCIAL-GROUP - Western & Southern Financial Group Inc. | 768 | — | 3 |
| AS27608US | RIPPECLOUD - Rippe & Kingston, LLC | 768 | — | 3 |
| AS53951US | GLMX-AS - GLMX, LLC | 768 | — | 3 |
| AS54305US | ALLACCESSTC - All Access Telecom, Inc. | 768 | — | 3 |
| AS205775US | neoncorenetworks NEON CORE NETWORK LLC | 768 | — | 3 |
| AS36665US | NATIONAL-CINEMEDIA - National Cinemedia, LLC | 768 | — | 3 |
| AS36406US | US-FIRE-INSURANCE-COMPANY - United States Fire Insurance Company | 768 | — | 3 |
| AS12245US | PRMC-ASN - Peninsula Regional Medical Center | 768 | — | 3 |
| AS394672US | ALLEGIANTNETWORKS-01 - Allegiant Technology | 768 | — | 3 |
| AS19980US | CAREERED - Career Education Corporation | 768 | — | 2 |
| AS13606US | LEANDERTX-AS1 - City of Leander, Texas | 768 | — | 3 |
| AS53865US | PEER-POINT - Peer-Point Services, LLC. | 768 | — | 3 |
| AS40851US | TEMPWORKS - TEMPWORKS SOFTWARE INC. | 768 | — | 3 |
| AS36546US | OREILLYAUTO - O'Reilly Automotive Inc. | 768 | — | 3 |
| AS54481US | CHESCO204108252 - County of Chester | 768 | — | 3 |
| AS53451US | NETX-INTERNET - NetX Internet, LLC. | 768 | 65.5K | 4 |
| AS399781US | AE - AE Hosting | 768 | — | 3 |
| AS396455US | CMM-CMH - CoverMyMeds LLC | 768 | — | 2 |
| AS46329US | TOURO-ASN - TOURO UNIVERSITY NEVADA | 768 | — | 2 |
| AS54573US | GTECH-PRODUCTION - Brightstar Global Solutions Corporation | 768 | — | 3 |
| AS32467US | SAKS-HBC-AS - SFA Holdings Inc. | 768 | — | 3 |
| AS40747US | HSINYIPTELTD-AS-AP - Hsin Yi Pte Ltd | 768 | 1 | 4 |
| AS46755US | COLUMBIA-COLLEGE-MISSOURI - Columbia College | 768 | — | 3 |
| AS25938US | SOROS-FUND-MAN - Soros Fund Management LLC | 768 | — | 3 |
| AS60281US | WEBAIR-INTERNET-UK WEBAIR INTERNET DEVELOPMENT COMPANY LLC | 768 | — | 3 |
| AS397804US | LDTUS-01 - Lighthouse Document Technologies, Inc | 768 | — | 3 |
| AS401707US | ARPHOST - ARPHost, LLC | 768 | 3 | 6 |
| AS55264US | ATLANTIC-METRO-COMMUNICATIONS-II-INC - Atlantic Metro Communications II, Inc. | 768 | — | 2 |