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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 0 |
| AS394291US | STERICOMSOL - STERICYCLE, INC. | — | — | 0 |
| AS394300US | TAB-BANK - TAB Bank | — | — | 0 |
| AS394307US | MW-AS - Fairview Health Services | — | — | 0 |
| AS394373US | QUENTUSTECH - Quentus Technologies | — | — | 0 |
| AS394476US | GENESYS-CLOUD-GCV - Genesys Cloud | — | — | 0 |
| AS394507US | GOOGLE - Google LLC | — | — | 0 |
| AS394512US | EVOLENTHEALTH - Evolent Health LLC | — | — | 0 |
| AS394530US | HAMMERFIBER - Hammer Fiber | — | — | 0 |
| AS394578US | DSH-AS1 - State of California, Department of State Hospitals | — | — | 0 |
| AS394589US | B2BSOFT - BTB Soft Inc. | — | — | 0 |
| AS394691US | STARWOOD-WICHITA-CCC - Marriott International, Inc. | — | — | 0 |
| AS394696US | RPRI-CORP - Betenbough Homes | — | — | 0 |
| AS394774US | RICHARDSON - Richardson Cap Company | — | — | 0 |
| AS394787US | PANOBIT - Panobit, LLC | — | — | 0 |
| AS394810US | IVIE-FM-ASN - Quad/Graphics Inc. | — | — | 0 |
| AS394885US | MRV-AS-PUBLIC-01 - MediRevv, LLC | — | — | 0 |
| AS394886US | INTEGRATED-PATH-COMMUNICATIONS - INTEGRATED PATH COMMUNICATIONS, LLC | — | — | 0 |
| AS394978US | ALLIANTCU-HQ2 - Alliant Credit Union | — | — | 0 |
| AS395038US | KERNELEQUITY - Dev Digital LLC | — | — | 0 |
| AS395187US | EM-2016 - Intercontinental Exchange, Inc. | — | — | 0 |
| AS395191US | APSL-ASN-001 - Atos Public Safety, LLC | — | — | 0 |
| AS395208US | WAVEDIRECT-TX - Resound Networks, LLC | — | — | 0 |
| AS395275US | IQMEDIACORP - iQ Media Corp | — | — | 0 |
| AS395282US | SHWANKY - Shwanky LLC | — | — | 0 |
| AS395489US | YOQL - Yoql.com, Inc | — | — | 0 |
| AS395545US | GRAHAM - Graham County | — | — | 0 |
| AS395628US | CYPHORT - Juniper Networks, Inc. | — | — | 0 |
| AS395672US | SAP-NS2-DC2 - SAPNS2 | — | — | 0 |
| AS395709US | CFSSSLCDC01 - Connect Financial Software Solutions, LLC | — | — | 0 |
| AS395762US | ASF1 - Airbnb, Inc. | — | — | 0 |
| AS395798US | UNUSED - IPro Media, Inc. | — | — | 0 |
| AS395851US | MICROSOFT-CORP-AS-BLOCK-MSIT2 - Microsoft Corporation | — | — | 0 |
| AS395869US | UNCOLLAPSE - Uncollapse LLC | — | — | 0 |
| AS395935US | EXOSTAR-AVA-01 - Exostar LLC | — | — | 0 |
| AS396022US | CT-PROD01 - CrunchTime! Information Systems, Inc | — | — | 0 |
| AS396114US | GENERAL-ASN - SEARHC | — | — | 0 |
| AS396228US | ZIPCAR-1 - Zipcar, Inc. | — | — | 0 |
| AS396263US | ENIGMA-CYBER - EnigmaCyber LLC | — | — | 0 |
| AS396365US | DFI - DFI Resources, LLC. | — | — | 0 |
| AS396435US | AFFTRACK - AffTrack, Inc | — | — | 0 |
| AS396526US | AS396526 - UNVIO, LLC | — | — | 0 |
| AS396539US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396598US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396629US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396643US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396644US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |