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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| ECM-ASN - Element Capital Management LLC |
| 256 |
| — |
| 1 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |
| AS393547US | AS393547 - San Diego County Credit Union | 256 | — | 1 |
| AS10939US | PMG1 - Paxton Media Group, LLC. | 256 | — | 1 |
| AS393687US | DELAWARE-RIVER-AND-BAY-AUTHORITY - Delaware River and Bay Authority | 256 | — | 1 |
| AS55018US | PRIME - Prime Holdings Insurance Services Inc | 256 | — | 1 |
| AS36115US | AS-DCPA - Denver Center for the Performing Arts | 256 | — | 1 |
| AS14681US | JAYCO - Jayco, Inc | 256 | — | 1 |
| AS218828US | Kikix Kikix LLC | 256 | 2 | 3 |
| AS400014US | PRISEDA-ABQ - Priseda LLC | 256 | — | 1 |
| AS401252US | TOMBALLISD - Tomball Independent School District | 256 | — | 1 |
| AS54851US | NEBH - New England Baptist Hospital | 256 | — | 1 |
| AS401666US | WORLD-GOLF-TOUR - World Golf Tour | 256 | — | 1 |
| AS401803US | PEOPRK25 - Peoria Park District | 256 | — | 1 |
| AS402428US | ITSUMIKU-AS-INTL1 - Itsumiku | 256 | — | 1 |
| AS25775US | GLADSON-LISLE - Gladson, LLC | 256 | — | 1 |
| AS400749US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | — | 1 |
| AS395408US | SBLI-MA - SBLI | 256 | — | 1 |
| AS11755US | ANDREWS-ASN01 - Andrews Distributing Company of North Texas, LLC | 256 | — | 1 |
| AS53749US | MWT - Midwest Tape | 256 | — | 1 |
| AS54684US | PPD-WILMINGTON - PPDI | 256 | — | 1 |
| AS393541US | ESS-CORP - EXTRA SPACE STORAGE | 256 | — | 1 |
| AS398233US | RURALREACH-01 - IVSComm, Inc | 256 | — | 1 |
| AS402714US | GCS-SAT-AS - Gravitas | 256 | 256 | 2 |
| AS394961US | SAINT-ANSELM-COLLEGE - Saint Anselm College | 256 | — | 1 |
| AS27347US | DATAPRO-NETWORKS - Datapro Telecom Solutions LLC | 256 | — | 1 |
| AS19841US | ISNS1 - ISNS | 256 | — | 1 |
| AS26373US | AMCON - AMCON Distributing Company | 256 | — | 1 |
| AS402229US | ARIA-JAMES - Aria and James | 256 | — | 1 |
| AS54273US | PADSUN - The Paducah Sun | 256 | — | 1 |
| AS398483US | SRS-PHARMACY - SRS Pharmacy Systems, Inc. | 256 | 1K | 2 |
| AS971US | PUREVOLTAGE - PureVoltage Hosting Inc. | 256 | 4.1K | 2 |
| AS33370US | AS-RIVCTY - City of Riverside | 256 | — | 1 |
| AS400240US | NEEBUNET - NEEBU Networks | 256 | 1 | 2 |
| AS46089US | AS2-NAVIS - Navis | 256 | — | 1 |
| AS17355US | WSD - Wayzata School District, ISD #284 | 256 | — | 1 |
| AS63214US | MUSL-RANGE1 - Multi-State Lottery Association | 256 | — | 1 |
| AS394050US | KIRBTECH - Kirbtech LLC | 256 | — | 1 |
| AS401261US | AXOSBANK-AS - AXOS BANK | 256 | — | 1 |
| AS46190US | KRMC - Kingman Regional Medical Center | 256 | — | 1 |
| AS402586US | COMMURE-USA - Commure | 256 | 2 | 3 |
| AS398403US | SSI - Alarm Detection Systems, Inc | 256 | — | 1 |
| AS36535US | HUDSON-RIVER-TRADING-LLC-36535 - Hudson River Trading LLC | 256 | — | 1 |
| AS55086US | PINNACLE-DATA-SYSTEMS - Pinnacle Data Systems, L.L.C. | 256 | — | 1 |
| AS402500US | GCL-01 - Gecko | 256 | 256 | 2 |
| AS14601US | AAL-ASN - Anchorage Advisors, LLC | 256 | — | 1 |
| AS16081US | AS16081 Kyndryl, Inc. | 256 | — | 1 |