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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| DALKO-NETWORKS - Dalko, LLC |
| 1K |
| — |
| 1 |
| AS400138US | DATABENTO - Databento, Inc. | 1K | — | 4 |
| AS46490US | DMEHOAS - DME Holdings, LLC | 1K | — | 4 |
| AS30231US | ARCADIA - Arcadia University | 1K | — | 4 |
| AS46314US | STONEWAIN-SYSTEMS - Stonewain Systems, Inc. | 1K | — | 4 |
| AS207847US | CloudBlast CloudBlast LLC | 1K | 18 | 7 |
| AS6103US | MTW-ASN - The Manitowoc Company Inc | 1K | — | 4 |
| AS39937US | LTECH - LTech Solutions, Ltd. | 1K | 65.5K | 5 |
| AS399239US | HILLTOWN-NETWORKS - Hilltown Networks | 1K | — | 4 |
| AS25801US | AUTOMATED-FINANCIAL - Automated Financial Systems | 1K | — | 4 |
| AS40946US | PROCON - Spireon, Inc. | 1K | — | 4 |
| AS4894US | COANAHEIM - City of Anaheim | 1K | — | 1 |
| AS400245US | AS400245 - AlphaCentri Corporation | 1K | 3 | 7 |
| AS26569US | COLLEGENET - CollegeNET | 1K | 1 | 2 |
| AS399269US | TORRANCE-01 - City of Torrance | 1K | — | 4 |
| AS215225US | WebhostingFSI Webhosting FSI LLC | 1K | — | 4 |
| AS14005US | DATATECHHOSTING - Data-Tech | 1K | — | 1 |
| AS63303US | TOUCHTONE-NEWARK - TouchTone Communications | 1K | — | 4 |
| AS46258US | ESC3 - Region III Education Service Center | 1K | — | 1 |
| AS54180US | SMVLMS - SMITHVILLE TELEPHONE CO | 1K | — | 1 |
| AS55103US | THIN-NOLOGY - Thin-nology, LLC | 1K | 4.1K | 5 |
| AS400409US | PULSARNET - Pulsar Networks Inc | 1K | — | 4 |
| AS394865US | TPU - Tacoma Public Utilities | 1K | — | 3 |
| AS13892US | BIPERFORMANCE-ASN - BI | 1K | — | 4 |
| AS395562US | FIREBALLWIRELESS - Fireball Wireless LLC | 1K | — | 4 |
| AS29749US | SINEWAVE - Sinewave, Inc. | 1K | 65.5K | 2 |
| AS399974US | FULTON-ASN - Fulton County Government | 1K | — | 4 |
| AS19316US | QUADRANGLE - Quadrangle Development Corporation | 1K | — | 4 |
| AS55175US | CLOUDBURST - RainWorx | 1K | — | 1 |
| AS400492US | DP-NET-ASN-01 - DataPerk, LLC | 1K | — | 3 |
| AS27465US | WIFINITY-ASN-01 - Net Vision Communications, LLC | 1K | — | 3 |
| AS19060US | BRYANLGH-AS-01 - Bryan Health | 1K | — | 2 |
| AS396943US | SV - City of Sunnyvale | 1K | — | 4 |
| AS402020US | ASN-PLANISYS - Planisys Corp | 1K | 65.5K | 5 |
| AS207088US | ADOARD ADOARD GLOBAL REACH LLC | 1K | — | 1 |
| AS394922US | CGIFEDERAL - CGI Federal | 1K | — | 4 |
| AS400769US | FUBOTV-NA-01 - fuboTV Media, Inc | 1K | 4.1K | 6 |
| AS46978US | BYTESIZE - Bytesize Internet LLC | 1K | 6 | 10 |
| AS398423US | APOG-CENT - Apogee Telecom Inc. | 1K | — | 3 |
| AS13612US | SYSMEX - Sysmex | 1K | — | 1 |
| AS53469US | KPBSD - Kenai Peninsula Borough School District | 1K | — | 1 |
| AS395857US | MIHS - Maricopa Integrated Health System | 1K | — | 3 |
| AS19834US | CNVR-ORD - Conversant, LLC | 1K | 52 | 7 |
| AS12233US | CACHE-POWERED-BY-NINJA-IX - Ninja-IX Corporation | 1K | 1 | 5 |
| AS16991US | CBTS-AS-DC1 - Cincinnati Bell Technology Solutions | 1K | — | 1 |
| AS33506US | CPINETWORKS-AS - COMMPUTERCATIONS | 1K | — | 1 |
| AS395193US | WESTFIELD-INSURANCE - Ohio Farmer's Insurance Company | 1K | — | 3 |