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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS398209US | REAL-GREEN-SYSTEMS - REAL GREEN HOLDINGS, LLC | — | — | 0 |
| AS397653US | CITYCR - City of Cedar Rapids | — | — | 0 |
| AS397869US | ADSUPPLY - AdSupply, Inc. | — | — | 0 |
| AS33005US | ELTOPIA - Eltopia Communications, LLC | — | — | 0 |
| AS32975US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS32061US | VARSTREET-INC - VARSTREET INCORPORATION | — | — | 0 |
| AS398511US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS30461US | QNACO-AS004 - QnA Consulting | — | — | 0 |
| AS30431US | AS-PREFIXX - Prefixx, Inc. | — | — | 0 |
| AS398859US | KIWI-IPTV - KIWISAT | — | — | 0 |
| AS30386US | ACI-WORLDWIDE - ACI Worldwide, Inc. | — | — | 0 |
| AS36017US | CESL-21-ASN-36017 - Claro Enterprise Solutions, LLC | — | — | 0 |
| AS35933US | NELSON-HQ-AS - Nelson & Associates | — | — | 0 |
| AS33682US | WEBERHS - Weber Human Services Foundation | — | — | 0 |
| AS36118US | EXCLUSIVE-RESORTS - Exclusive Resorts, LLC | — | — | 0 |
| AS33215US | OVATI-10 - Ovation Travel Group, Inc. | — | — | 0 |
| AS33212US | DAYSTARR-AS - Daystarr Communications | — | — | 0 |
| AS33597US | ATLANTIC-METRO-COMMUNICATIONS-II-INC - Atlantic Metro Communications II, Inc. | — | — | 0 |
| AS33034US | SITE-SAFE-AS-1 - Crown Castle USA | — | — | 0 |
| AS25904US | ASN-CXA-GC-25904-CBS - Cox Communications Inc. | — | — | 0 |
| AS25666US | DIGINODUS - Diginodus | — | — | 0 |
| AS401334US | MSCI-BRANCHES - Barra International, LLC | — | — | 0 |
| AS211420US | kryptoslogic Kryptos Logic LLC | — | — | 0 |
| AS203975US | Zorn-Technologies Zorn Technologies LLC | — | — | 0 |
| AS63384US | PEDCOR - PEDCOR INVESTMENTS | — | — | 0 |
| AS400054US | AMS-NYC-LR4 - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS399994US | PBX-LASVEGAS - PBXIO LLC | — | — | 0 |
| AS396428US | SAP-DC-CO - SAP America Inc. | — | — | 0 |
| AS399573US | FLOSPORTS-BGP - Flosports, Inc. | — | — | 0 |
| AS399162US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399072US | AL-PROD-03 - AppLovin Corporation | — | — | 0 |
| AS401644US | OPTIMASERVERS - Optima Servers Inc | — | — | 0 |
| AS399396US | NY-MASSIVEGRID-1-MNT - MASSIVEGRID, INC | — | — | 0 |
| AS401411US | HCC - Haywood Community College | — | — | 0 |
| AS40052US | EQUINIX-CX-NY - Equinix, Inc. | — | — | 0 |
| AS401096US | AS - EchoSphere Tech LLC | — | — | 0 |
| AS400254US | WT-JACK - Wolverine Trading, LLC | — | — | 0 |
| AS400746US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS400569US | NTS-ASN-FREE - Vexus Fiber | — | — | 0 |
| AS397286US | YWT-ASN-01 - Yourway Transport Inc. | — | — | 0 |
| AS395008US | OMAHA-CB - FMR LLC | — | — | 0 |
| AS396756US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396745US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396610US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396650US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS398869US | ALLIANCE COMMUNICATIONS - Alliance Communications | — | — | 0 |