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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 1 |
| AS53911US | NTK001 - NET TALK.COM INC. | 1K | — | 4 |
| AS55173US | AVIAT-NETWORKS - Aviat U.S., Inc. | 1K | — | 4 |
| AS22140US | T-MOBILE-AS22140 - T-Mobile USA, Inc. | 1K | 1 | 2 |
| AS17150US | AFCU - America First Credit Union | 1K | — | 4 |
| AS10466US | MAGPI - MAGPI | 1K | 256 | 3 |
| AS33222US | AS33222 - Ashley Furniture Industries, Inc. | 1K | — | 4 |
| AS4901US | CAAREN - The George Washington University | 1K | 16 | 2 |
| AS401181US | CORDIAL-01 - Cordial | 1K | — | 1 |
| AS8084US | WOLVERINE-EXECUTIONS-SERVICES - Wolverine Execution Services, LLC | 1K | — | 4 |
| AS18820US | SARGENTO-AS-0 - Sargento Foods, Inc. | 1K | — | 3 |
| AS11326US | ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 1K | — | 4 |
| AS17340US | EO-1 - EmailOversight, Inc. | 1K | — | 4 |
| AS19198US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS21937US | EEL-LTL - Estes Express Lines | 1K | — | 4 |
| AS64238US | ASN-OARC - DNS-OARC | 1K | 2 | 5 |
| AS394893US | CLAIR - Clair Global | 1K | — | 4 |
| AS394908US | LAZBOYASN - La-Z-Boy Incorporated | 1K | — | 4 |
| AS394994US | PIVOTAL - AgUplink, LLC. | 1K | — | 1 |
| AS22500US | MAW-INTF-WORLD - MAW COMMUNICATIONS | 1K | — | 1 |
| AS46875US | HUNTSVILLEHOSPITAL - Huntsville Hospital | 1K | — | 4 |
| AS54035US | DAVEY-HOLDINGS-LLC - Davey Holdings LLC | 1K | — | 4 |
| AS398969US | MSG-ENT - Sphere Entertainment Group, LLC | 1K | — | 4 |
| AS394080US | TENERUM-AS - Tenerum, LLC | 1K | — | 4 |
| AS25623US | CISN2 - TowardEX Technologies International, Inc. | 1K | 65.8K | 8 |
| AS21955US | GRIFOLS - Grifols Inc. | 1K | — | 4 |
| AS218682US | ORG-OCL45-AS OpenWave Connect LLC | 1K | — | 4 |
| AS2567US | SLB-WESTERNGECO-AS - Schlumberger Limited | 1K | — | 4 |
| AS23414US | AUTORIDAD - Autoridad del Canal de Panama | 1K | — | 4 |
| AS395220US | LCCA-ASN - Life Care Centers of America, Inc. | 1K | — | 4 |
| AS62663US | TELECALL - Telecall | 1K | 4.1K | 4 |
| AS398638US | JELLYDIGITAL - Jelly Digital, LLC. | 1K | — | 3 |
| AS14967US | NORTHMEMORIAL-HEALTHCARE-ASN - North Memorial Health Care | 1K | — | 1 |
| AS19421US | LANDSEND - Lands' End, Inc. | 1K | — | 3 |
| AS33358US | AE-CORPORATE-SERVICES-CO - AE CORPORATE SERVICES CO | 1K | — | 3 |
| AS394565US | HSTSOFT-AS-01 - H.S.T. SYSTEMS AND TECHNOLOGY, INC. | 1K | — | 3 |
| AS36073US | COMPORTSECURE-01 - ComportSecure LLC | 1K | — | 3 |
| AS394241US | CUSD186 - Murphysboro Community Unit School District No. 186 | 1K | — | 4 |
| AS11633US | 4LIFE-HOLDINGS-LLC - 4Life Research USA, LLC | 1K | — | 3 |
| AS54342US | RNHN - Rural Nebraska Healthcare Network | 1K | — | 1 |
| AS53535US | ARIN-PFS-ANYCAST - ARIN Operations | 1K | 3 | 6 |
| AS393651US | ANOVYS01 - Anovys LLC | 1K | — | 2 |
| AS22714US | SJC-ASN-01 - St. Joseph County Intermediate School District | 1K | — | 1 |
| AS23494US | HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 1K | — | 4 |
| AS393833US | OUTBACKINTERNET - Outback Internet | 1K | — | 3 |
| AS399055US | SOUTHEAST-NETWORKS - Southeast Networks | 1K | 65.5K | 5 |
| AS26936US | USI - USI INSURANCE SERVICES | 1K | — | 2 |