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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| — |
| 1 |
| 1 |
| AS398325US | SALTANT-SOLUTIONS - Saltant Solutions LLC | — | 512 | 2 |
| AS402270US | SOFTERYX-INC - Softeryx | — | 256 | 1 |
| AS400177US | RC - rootcloud LLC | — | 4M | 18 |
| AS200085US | WEILNET WeilNet, LLC | — | 5 | 5 |
| AS19748US | SECTORLINK - Sector Link LLC. | — | 65.5K | 1 |
| AS57848US | SKY Sky Walters | — | 5 | 5 |
| AS396303US | NATOLAB-LEGACY - Black Mesa Corporation | — | 258 | 3 |
| AS197992US | DEFSOLUTION-LLC DEFSOLUTION LLC | — | 7.9M | 15 |
| AS60614US | OwO-NETWORK OwO Network, LLC | — | 16 | 1 |
| AS211411US | wylie Wylie Fowler | — | 3 | 3 |
| AS207618US | DORIDIAN-AS Mark Dietzer | — | 257 | 2 |
| AS402240US | WAYFIRE TECHNOLOGIES LLC - Wayfire Technologies LLC | — | 1 | 1 |
| AS48818US | AS-NETSER-INC NETSER INC | — | 442 | 187 |
| AS197272US | PHILIPHOGAN Philip Hogan | — | 1 | 1 |
| AS215135US | GARCED Anthony Garced | — | 1 | 1 |
| AS206540US | TOWNBUS BEANSUMMERHOST NEXTGEN SHED HOSTING SOLUTIONS LLC | — | 24 | 9 |
| AS18932US | STEPBROBD - StepBroBD, Inc. | — | 6 | 6 |
| AS63437US | ARBOREAL-STUDIOS-01 - Arboreal Studios Inc. | — | 1 | 1 |
| AS2173US | HPINC - HP Inc. | — | 1 | 1 |
| AS197346US | SYLANT-ASN Sylant LLC | — | 1 | 1 |
| AS36757US | DOSOIG - Department of State Office of Inspector General | — | 1 | 1 |
| AS401293US | AS401293 - FSTcloud | — | 2.6M | 5 |
| AS11263US | BELLTOWER - Bell Tower Integration, Inc. | — | 2 | 2 |
| AS200329US | HYPERTOAST-AS Monil Chheda | — | 3 | 3 |
| AS216124US | C-RAM-AS C-Ram Inc. | — | 256 | 1 |
| AS400903US | IND-COLO-01 - Genesys Cloud | — | 1 | 1 |
| AS211387US | CXBnet Caleb Xavier Berger | — | 257 | 2 |
| AS397658US | NRUMNET - Hop179 LLC | — | 4 | 4 |
| AS394276US | TAF - TurnAround Factor, Inc. | — | 2 | 1 |
| AS49548US | NSA-NET NSA Networks LLC | — | 34 | 4 |
| AS3754US | NYSERNET3-AS - NYSERNet | — | 1 | 1 |
| AS46386US | ZANA-AS-2 - Osir, Inc. | — | 32 | 1 |
| AS11007US | NEONGOAT - Neon Goat Productions | — | 1 | 1 |
| AS10941US | TECHCOM-1 - Genuine Telecom | — | 256 | 1 |
| AS400522US | ROOTCLOUD - rootcloud LLC | — | 8.7M | 32 |
| AS54344US | NEXTRAQ-LLC - NexTraq, LLC | — | 1 | 1 |
| AS202902US | ANTARES-NETWORK Nathen Goldsborough | — | 1 | 1 |
| AS401600US | SCN-RESEARCH - sc Network | — | 256 | 1 |
| AS401082US | TITANIA-RND - TITANIA R&D | — | 4 | 4 |
| AS402008US | L7CORE-L7AS01 - L7CORE, LLC | — | 1 | 1 |
| AS400546US | EXAGRID-ASN - Exagrid | — | 2 | 2 |
| AS982US | PACKETFRAME - Packetframe | — | 1 | 1 |
| AS3852US | MAGICMONAD - Magic Monad LLC | — | 65 | 2 |
| AS394082US | GOOGLE-PEER - rootcloud LLC | — | 2.6M | 5 |
| AS214763US | Akshay-Revankar Akshay Revankar | — | 1 | 1 |
| AS11867US | ZT-75-11867 - Osir, Inc. | — | 4 | 3 |