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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| — |
| — |
| 0 |
| AS394261US | WYNDHAM-WORLDWIDE-INDIANAPOLIS - Wyndham Worldwide Corporation | — | — | 0 |
| AS394362US | DIGITALOCEAN-AS394362 - DigitalOcean, LLC | — | — | 0 |
| AS394370US | CCM-NET1 - Collectivei | — | — | 0 |
| AS394390US | IDEAYA-BIOSCIENCES - Ideaya Biosciences, Inc | — | — | 0 |
| AS394436US | ICEBRG - Icebrg | — | — | 0 |
| AS394560US | YAHOO-DNB - Yahoo Holdings Inc. | — | — | 0 |
| AS394587US | SAFARILAND - Safariland LLC | — | — | 0 |
| AS394636US | IMPREZZIO-TOR - Imprezzio Inc | — | — | 0 |
| AS394694US | CHB-ASN - District Photo, Inc. | — | — | 0 |
| AS394874US | COSL-AZ - City of Show Low | — | — | 0 |
| AS394914US | SUPRNET-ASN - Southern Utah Peering Regional Network | — | — | 0 |
| AS394919US | FTV-SEA - FTV Business Services LLC | — | — | 0 |
| AS394941US | AIRBNB - Airbnb, Inc. | — | — | 0 |
| AS394954US | NEXACOMM-TX - Nexacomm, LLC | — | — | 0 |
| AS395063US | TAPCONET-CORPHQ - Traffic and Parking Control Co., Inc. | — | — | 0 |
| AS395365US | 72ANDSUNNY - 72andSunny Partners, LLC | — | — | 0 |
| AS395456US | NEXT-LEVEL-TECHNOLOGY-PARTNER - Next-Level Technology Partners | — | — | 0 |
| AS395524US | MICROSOFT-CORP-AS-BLOCK-MSIT4 - Microsoft Corporation | — | — | 0 |
| AS395533US | ECSL-9 - Elevate Credit Service, LLC | — | — | 0 |
| AS395689US | BALTIMORE-ARENA-OVG-ASN-2022 - Baltimore Arena Company, LLC | — | — | 0 |
| AS395792US | HPS-AS-MA-US - Holyoke Public Schools | — | — | 0 |
| AS395805US | ECHO-CON - The Echo Group | — | — | 0 |
| AS395865US | AMFR - American Frontier, LLC | — | — | 0 |
| AS395903US | COOKCOUNTY-ELEC - Cook County | — | — | 0 |
| AS395919US | WILINE-METRO - WiLine Networks Inc. | — | — | 0 |
| AS395937US | QUANTUM-FSD - QUANTUM FSD INC | — | — | 0 |
| AS395984US | VVIEWISD - Valley View ISD | — | — | 0 |
| AS396048US | BRONX-ASN - Monroe College, LTD. | — | — | 0 |
| AS396172US | MVWC - Marriott Ownership Resorts, Inc. | — | — | 0 |
| AS396200US | VOICE-CARRIER - Voice Carrier, LLC | — | — | 0 |
| AS396203US | EMA-VEGAS-CORP - eMoney Advisor | — | — | 0 |
| AS396251US | CLEARCAPTIONS - ClearCaptions | — | — | 0 |
| AS396265US | WINFIELD - LAND O LAKES, INC. | — | — | 0 |
| AS396278US | CONNECTEDAF-01 - ConnectedAF Limited | — | — | 0 |
| AS396385US | NOCTIONINC - Noction, Inc. | — | — | 0 |
| AS396392US | FNCB-ASN - FNCB Bank | — | — | 0 |
| AS396393US | THE-PARTS-HOUSE - The Parts House | — | — | 0 |
| AS396445US | QUICKINTL - Q International Courier LLC | — | — | 0 |
| AS396467US | WISCONSIN-COURT-SYSTEM - CCAP | — | — | 0 |
| AS396545US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396552US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396554US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396582US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396592US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396620US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396625US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |