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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| — |
| — |
| 0 |
| AS395520US | PLATFORM9 - Platform9 | — | — | 0 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS22400US | WEB2OBJECTS - Web2Objects LLC | — | 2 | 1 |
| AS396623US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS394906US | PTI-SANDPOINTDC - PROTELLIGENT, INC. | — | — | 0 |
| AS394686US | CL-200 - Clearent LLC | — | — | 0 |
| AS394618US | NEXTGEAR-CAPITAL-EXPEDIENT - NextGear Capital, Inc. | — | — | 0 |
| AS16579US | RADIANZ - BT Americas, Inc | — | — | 0 |
| AS4988US | ALOHANET1 - Hawaiian Telcom Services Company, Inc. | — | — | 0 |
| AS397907US | 865 - AEG | — | — | 0 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS397800US | AS-PRIMARY - ANVIL Systems Group, INC | — | 1 | 1 |
| AS16673US | BAYER-US-ASN - Bayer Corporation | — | — | 0 |
| AS17263US | TN-ASN-NM - Tarakona Networks, LLC | — | — | 0 |
| AS17084US | IDS - IDS | — | — | 0 |
| AS16980US | UNITEDGUARANTY - Arch Capital Services LLC | — | — | 0 |
| AS16540US | BLUEROOSTER-ASN - Wave Broadband | — | — | 0 |
| AS398510US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS16448US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS214763US | Akshay-Revankar Akshay Revankar | — | 1 | 1 |
| AS13721US | CDK-GLOBAL-HOSTING - CDK Global, LLC | — | — | 0 |
| AS19097US | GWRE-SM - Guidewire Software, Inc. | — | — | 0 |
| AS18863US | BPL-232-18863 - Barbary Partners | — | — | 0 |
| AS15216US | HOSTWAY - Ntirety, Inc. | — | — | 0 |
| AS13507US | KMARTCORPORATION - Sears Holdings Corporation | — | — | 0 |
| AS17332US | TAXACT2 - 2nd Story Software, Inc. | — | — | 0 |
| AS14185US | CBSK - CABLE ONE, INC. | — | — | 0 |
| AS399822US | FARWEST-STEEL-CORP - Farwest Steel Corporation | — | — | 0 |
| AS399236US | HYPER - Hypercom | — | — | 0 |
| AS398661US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS398650US | AMEX-PART-ASH - American Express Company | — | — | 0 |
| AS401018US | AXLETREE-NET-01 - Axletree Solutions Inc. | — | — | 0 |
| AS398515US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS400969US | PEG-TW-01 - PEG TECH INC | — | — | 0 |
| AS11021US | NVH-ASN - North Valley Hospital | — | 256 | 1 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS400296US | DART-NET - Snaju Development | — | — | 0 |
| AS197137US | YUNHU-NETWORKS Yunhu Networks LLC | — | 1 | 1 |
| AS399737US | ETHERWARE - Etherware Solutions LLC | — | — | 0 |
| AS397216US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS200790US | BYTEFIZZ BYTEFIZZ LLC | — | 512 | 2 |
| AS397083US | CEL-NET1-V4 - Chicopee Electric Light | — | — | 0 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS19333US | ACML-2 - AllianceBernstein L.P. | — | — | 0 |
| AS396716US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS397798US | MSGTEL - MSG Tel, Inc. | — | — | 0 |