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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS396170US | ONECOLO-ASN-PRIMARY - OneColo | — | — | 0 |
| AS396187US | BRIVMRC - Benaroya Research Institute | — | — | 0 |
| AS396234US | SYSER - SERVPS LLC | — | — | 0 |
| AS396256US | ING-001 - Isolation Network, Inc | — | — | 0 |
| AS396282US | STERLINGINFOSYSTEMS - Sterling Infosystems, Inc. | — | — | 0 |
| AS396346US | HEALTH-FIRST - HEALTH FIRST, INC. | — | — | 0 |
| AS396386US | ADECASN - A-dec Inc. | — | — | 0 |
| AS396414US | HACKING-AND-COFFEE-LLC - Hacking & Coffee, LLC | — | — | 0 |
| AS396547US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396557US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396560US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396568US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396583US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396585US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396590US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396597US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396633US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396637US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396723US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396731US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396753US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396806US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396889US | WISCONSIN-COURT-SYSTEM - CCAP | — | — | 0 |
| AS397094US | WITS-ASN-1 - Work IT Solutions, Inc. | — | — | 0 |
| AS397139US | NRS - WB Games Inc. | — | — | 0 |
| AS397201US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397202US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397212US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397228US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397230US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397316US | KSP-OXBOW - KSP Fulfillment LLC | — | — | 0 |
| AS397339US | LEGACY-HWX - Cloudera, Inc. | — | — | 0 |
| AS397355US | ISERV-SWITCH - The Iserv Company, LLC | — | — | 0 |
| AS397368US | TETAHOST - DCNHOST | — | — | 0 |
| AS397389US | TIHQASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS397411US | SLW-NET-01 - Swift Link Wireless, Inc | — | — | 0 |
| AS397437US | AURIA-SLD-01 - Auria Solutions USA Inc. | — | — | 0 |
| AS397533US | IMECOM-GROUPINC-01 - Alhambra US | — | — | 0 |
| AS397578US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS397643US | WSD3-GATEWAY-01 - Widefield School District 3 | — | — | 0 |
| AS397647US | BOLDPENGUIN-1 - Bold Penguin, Inc. | — | — | 0 |
| AS397669US | NSI-ASN - Northern Safety Co., Inc. | — | — | 0 |
| AS397768US | MEDSTAR - MedStar Mobile Healthcare | — | — | 0 |
| AS397792US | HDCO-GROUP - HDCO GROUP LLC | — | — | 0 |
| AS397875US | WHITEHAT-US-HOU-03 - Synopsys Inc. | — | — | 0 |
| AS397929US | DD-ASN-01 - ADT LLC | — | — | 0 |