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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 1K |
| — |
| 2 |
| AS33488US | WATECH-1 - Providence Park Medical Building Group, LLC | 1K | — | 1 |
| AS400409US | PULSARNET - Pulsar Networks Inc | 1K | — | 4 |
| AS30231US | ARCADIA - Arcadia University | 1K | — | 4 |
| AS395193US | WESTFIELD-INSURANCE - Ohio Farmer's Insurance Company | 1K | — | 3 |
| AS399224US | PERATON-CORE - PERATON INC. | 1K | 65.5K | 5 |
| AS53933US | TELX-TOR - Telx | 1K | 257 | 3 |
| AS55175US | CLOUDBURST - RainWorx | 1K | — | 1 |
| AS63303US | TOUCHTONE-NEWARK - TouchTone Communications | 1K | — | 4 |
| AS25801US | AUTOMATED-FINANCIAL - Automated Financial Systems | 1K | — | 4 |
| AS15041US | ETRN-MKC - ETRN.com, Inc. | 1K | — | 4 |
| AS394755US | CRHSC - City of Rock Hill SC | 1K | — | 4 |
| AS53948US | ONEIRIC - Oneiric Systems, LLC | 1K | — | 4 |
| AS26566US | AS-SJC44NET - Pal Communications LLC | 1K | — | 1 |
| AS401335US | AI-DUDE-RI - Minerdude LLC | 1K | — | 2 |
| AS4451US | ASN1 - 1199SEIU National Benefit Funds | 1K | — | 4 |
| AS14243US | CGS-ASP - CGS | 1K | — | 1 |
| AS401933US | HASHIT - HashIT | 1K | — | 4 |
| AS33506US | CPINETWORKS-AS - COMMPUTERCATIONS | 1K | — | 1 |
| AS53811US | SFCL-HNP - San Francisco Chronicle, LLC | 1K | — | 1 |
| AS26471US | STIFEL - Stifel, Nicolaus & C | 1K | — | 4 |
| AS31916US | PULSAR67 - ReviveHost | 1K | 256 | 2 |
| AS62296US | vitalng Vital Network Group, LLC | 1K | 196.6K | 7 |
| AS5957US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 1K | 1 | 5 |
| AS53519US | CMHC-ASN - Central Maine Medical Family | 1K | — | 4 |
| AS25822US | TU-ASN-01 - Tiffin University | 1K | — | 4 |
| AS395151US | HEADLANDS-AS - Headlands Technologies LLC | 1K | — | 4 |
| AS40800US | VEEAM-US - VEEAM SOFTWARE CORPORATION | 1K | — | 4 |
| AS54380US | THOUGHTWAVE - ThoughtWave Technologies, Inc. | 1K | 65.6K | 12 |
| AS23142US | NEOGENOMICS-ASN - NeoGenomics | 1K | — | 3 |
| AS229US | MERIT-AS-6 - Merit Network Inc. | 1K | 1 | 3 |
| AS394865US | TPU - Tacoma Public Utilities | 1K | — | 3 |
| AS26569US | COLLEGENET - CollegeNET | 1K | 1 | 2 |
| AS30011US | MESSER-NORTH-AMERICA - Messer North America, Inc. | 1K | — | 4 |
| AS23199US | COMDATA-NETWORK - Comdata,INC | 1K | — | 4 |
| AS54710US | INNOUT - IN-N-OUT BURGERS | 1K | — | 4 |
| AS22466US | WALLOWA-VALLEY-NETWORKS-LLC - Wallowa Valley Networks, LLC | 1K | — | 1 |
| AS4894US | COANAHEIM - City of Anaheim | 1K | — | 1 |
| AS54746US | KLAZO-ASN - KLAZO, LLC | 1K | — | 4 |
| AS13892US | BIPERFORMANCE-ASN - BI | 1K | — | 4 |
| AS8232US | GXS-EUROPE GXS International Inc. | 1K | — | 2 |
| AS397125US | BLOOSURF-ASN-01 - BLOOSURF LLC | 1K | — | 1 |
| AS29749US | SINEWAVE - Sinewave, Inc. | 1K | 65.5K | 2 |
| AS46505US | NIXIHOST - NixiHost.com Incorporated | 1K | 4.6K | 6 |
| AS15324US | BARRACUDA-NETWORKS-INC - Barracuda Networks, Inc. | 1K | — | 4 |
| AS19787US | FEIM-LLC - First Eagle Investment Management LLC | 1K | — | 3 |
| AS400138US | DATABENTO - Databento, Inc. | 1K | — | 4 |