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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 | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| — |
| 274 |
| 4 |
| AS199465US | feiya FeiYa Network LTD. | — | 512 | 1 |
| AS402004US | RS - Rui Sun, Sole Proprietorship | — | 2 | 2 |
| AS401507US | IMPUT - imput | — | 2 | 2 |
| AS218794US | XORIST James Jones | — | 1 | 1 |
| AS33654US | CMCS - Comcast Cable Communications, LLC | — | 16 | 16 |
| AS401647US | FRO - Fro LLC | — | 4.1K | 1 |
| AS402430US | HOX - Hox | — | 256 | 1 |
| AS214974US | ZEROTECH-AS ZEROTECH CLOUD LLC | — | 1 | 1 |
| AS26768US | SAKURA - SAKURA LTD. | — | 2 | 2 |
| AS215188US | KALLSYMS Nicholas Gregory | — | 16 | 1 |
| AS206081US | JORDANSAVOCANET Jordan Savoca | — | 1 | 1 |
| AS6570US | CNCS - AmeriCorps | — | 256 | 1 |
| AS3381US | MHPCC-AS - Maui High Performance Computing Center | — | 1 | 1 |
| AS6025US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 6 | 6 |
| AS216052US | CDUBS-NET Craig Schulz | — | 33 | 3 |
| AS396931US | HOSTROYALE-TECHNOLOGIES-02 - HostRoyale LLC | — | 524.3K | 1 |
| AS151817US | ZAPPIEHOST-AS-AP - Zappie Host LLC | — | 65.5K | 2 |
| AS198804US | RISHI-AS Rishi Ram Panthee | — | 512 | 2 |
| AS205232US | EvilNET Felix Alcantara | — | 768 | 3 |
| AS36262US | HASHTABLE-PREMIUM-TIER - HashTable, Inc. | — | 10 | 10 |
| AS213774US | NANCYANDSYSROM NANCYANDSYSROM LLC | — | 1 | 1 |
| AS397800US | AS-PRIMARY - ANVIL Systems Group, INC | — | 1 | 1 |
| AS399980US | RFPT - RFPT COMPANY LLC | — | 258 | 3 |
| AS218631US | EnderHost EnderHost LLC | — | 1 | 1 |
| AS210836US | ASTROPHAGE Edward Behling | — | 16 | 1 |
| AS19388US | TEAM-CYMRU-3 - Team Cymru Inc. | — | 1 | 1 |
| AS402975US | DALINET - DragonDoor | — | 256 | 1 |
| AS213370US | NETOMAT Netomat LLC | — | 1 | 1 |
| AS211411US | wylie Wylie Fowler | — | 3 | 3 |
| AS402240US | WAYFIRE TECHNOLOGIES LLC - Wayfire Technologies LLC | — | 1 | 1 |
| AS399087US | ROOFTOP-NET-01 - Rooftop, LLC | — | 4.1K | 1 |
| AS400546US | EXAGRID-ASN - Exagrid | — | 2 | 2 |
| AS399477US | RYAN-PUBLIC-ASN - Ryan Companies US, Inc. | — | 256 | 1 |
| AS48818US | AS-NETSER-INC NETSER INC | — | 382 | 127 |
| AS402270US | SOFTERYX-INC - Softeryx | — | 256 | 1 |
| AS202467US | BISMANLAN-AS Nicholas Walz | — | 257 | 2 |
| AS397658US | NRUMNET - Hop179 LLC | — | 5 | 5 |
| AS3754US | NYSERNET3-AS - NYSERNet | — | 1 | 1 |
| AS402749US | CORE42-US - CORE42 | — | 256 | 1 |
| AS11263US | BELLTOWER - Bell Tower Integration, Inc. | — | 2 | 2 |
| AS402136US | AERENSERVE - Aerenserve Software LLC | — | 3 | 3 |
| AS27644US | THREATSTOP - ThreatSTOP | — | 18 | 3 |
| AS201243US | EdgeAlphix EdgeAlphix LLC | — | 2 | 2 |
| AS398325US | SALTANT-SOLUTIONS - Saltant Solutions LLC | — | 512 | 2 |
| AS218991US | MayaCraft-AS MayaCraft LLC | — | 2 | 2 |
| AS402359US | GOESEL-NET - Goesel.net | — | 258 | 3 |