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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| — |
| 1 |
| AS401456US | DREWUN-01 - Drew University | 256 | — | 1 |
| AS33693US | AS-TIERP-33693 - TierPoint, LLC | 256 | — | 1 |
| AS15281US | NGCPUB - National Gypsum Company | 256 | — | 1 |
| AS16517US | LEEPROCESS - LEE & ASSOCIATES LLC | 256 | — | 1 |
| AS40085US | KODIAKCOMPUTERSERVICES - Kodiak Computer Services, Inc. | 256 | — | 1 |
| AS394251US | CFF - Cystic Fibrosis Foundation | 256 | — | 1 |
| AS401733US | WTS-MSP - Wachter Technology Solutions | 256 | — | 1 |
| AS398637US | NMLEGIS - Legislative Council Service | 256 | — | 1 |
| AS401197US | KCORE-01 - kCore Cloud LLC | 256 | 256 | 2 |
| AS31945US | MERTANDHOUSE LLC - MERTANDHOUSE LLC | 256 | — | 1 |
| AS398244US | ECHONET-01 - EchoNet | 256 | — | 1 |
| AS394781US | RSD - Reading School District | 256 | 256 | 2 |
| AS54245US | CITYOFDURANGO - City of Durango | 256 | — | 1 |
| AS40466US | OSI-FISERV-HAWAII-DC - Fiserv Solutions, LLC | 256 | — | 1 |
| AS30394US | JENNISON - Jennison Associates LLC | 256 | — | 1 |
| AS62650US | LEAF-GROUP-LTD - Leaf Group Ltd. | 256 | — | 1 |
| AS53754US | LCPA-AS - Lincoln Center for the Performing Arts, Inc. | 256 | — | 1 |
| AS603US | EQUINIX-EC - Equinix, Inc. | 256 | 4.1K | 2 |
| AS398711US | QG-AS-1 - Quality Gold, Inc. | 256 | — | 1 |
| AS26738US | DEERFIELD - Deerfield Partners, L.P. | 256 | — | 1 |
| AS395463US | MURFDATA1 - Murfreesboro Data, LLC | 256 | — | 1 |
| AS16764US | THE-RAINE-GROUP-LLC - The Raine Group LLC | 256 | — | 1 |
| AS402397US | 17SOLUTIONS-LLC - 17 | 256 | 1 | 2 |
| AS398160US | PUBLIC-BGP-01 - CompX Security Products, Inc. | 256 | — | 1 |
| AS17291US | MCMILLIN-SANANTONIO - McMillin Texas Homes, LLC | 256 | — | 1 |
| AS27214US | INSITU-AS - Insitu, Inc | 256 | — | 1 |
| AS397648US | CH3-ASN-01 - NORTH AMERICAN SCIENCE ASSOCIATES, LLC | 256 | — | 1 |
| AS30102US | BALDWIN - Baldwin County Commission | 256 | — | 1 |
| AS33103US | OPENMARKET-INC-2 - Infobip | 256 | — | 1 |
| AS399866US | COBASO-NET - Cobaso, LLC. | 256 | 3 | 4 |
| AS21602US | CFVHS - Cape Fear Valley Medical Center | 256 | — | 1 |
| AS62817US | BARRETTHOSPITAL - BARRETT HOSPITAL AND HEALHCARE | 256 | — | 1 |
| AS40362US | CHAPIN-AS - Chapin School | 256 | — | 1 |
| AS1029US | BLACK-MESA-LMN - Black Mesa Corporation | 256 | 2 | 3 |
| AS14784US | STCU - SPOKANE TEACHERS CREDIT UNION | 256 | — | 1 |
| AS23439US | KQED-ORG - KQED Inc. | 256 | — | 1 |
| AS393441US | NIOBRARA-RD - NIOBRARA RESEARCH AND DEVELOPMENT CORPORATION | 256 | — | 1 |
| AS54808US | SUN-COAST-RESOURCES - SUN COAST RESOURCES, INC | 256 | — | 1 |
| AS399601US | 601-LEXINGTON-BGP - etc.venues NYC LLC | 256 | — | 1 |
| AS394555US | APPLIED-SYSTEMS-LAB - APPLIED SYSTEMS, INC | 256 | — | 1 |
| AS48118US | ARIES-INVESTMENTS-AS Aries Investments LLC. | 256 | — | 1 |
| AS30299US | THE-MARTIN-AGENCY-HQ - THE MARTIN AGENCY | 256 | — | 1 |
| AS396133US | HOUSTON-ZOO - Houston Zoo | 256 | — | 1 |
| AS30546US | INFINEON TECHNOLOGIES AMERICAS CORP - Infineon technologies Americas Corp | 256 | 1 | 2 |
| AS62546US | FRISCOTXISD - Frisco Independent School District | 256 | — | 1 |
| AS64198US | ESET-LLC - ESET LLC | 256 | — | 1 |