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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| 264 |
| 9 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS35920US | HOUIX - HOUIX | — | — | 0 |
| AS29876US | VIRTUAL-TECHNOLGOIES-AND-SOLUTIONS - Virtual Technologies and Solutions LLC | — | — | 0 |
| AS33410US | MANDIANT-US2 - Mandiant, Inc. | — | — | 0 |
| AS33065US | NUVEUM - Nuveum Inc. | — | — | 0 |
| AS33144US | NAVIGANTCONSULTING - Guidehouse Inc. | — | — | 0 |
| AS32940US | EVOCATIVE3 - Evocative, Inc. | — | — | 0 |
| AS207618US | DORIDIAN-AS Mark Dietzer | — | 257 | 2 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS23365US | IFBYPHONE - Invoca, Inc. | — | — | 0 |
| AS22329US | BAYMOUNTAIN - Flexential Corp. | — | — | 0 |
| AS26103US | ACIG - ACIG | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS15287US | EASYVM-LLC - EasyVM, LLC | — | — | 0 |
| AS15288US | NOKIA-NA - Nokia of America Corporation | — | — | 0 |
| AS19641US | TIHC-DC4 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS17132US | ACDNET-ASN4 - ACD.net | — | — | 0 |
| AS14682US | GGS - GGS Information Services | — | — | 0 |
| AS14646US | FRANKLINCOVEY - Franklin Covey Co. | — | — | 0 |
| AS14071US | PQ-CORPORATION - PQ Corporation | — | — | 0 |
| AS14219US | ENTRYWAN - ENTRYWAN LLC | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS19219US | WPS-AS19219 - Wisconsin Physicians Service Insurance Corp. | — | — | 0 |
| AS18921US | ASHERECHICAGOEQUINIXCH3 - HERE North America LLC | — | — | 0 |
| AS19947US | VINS-AS-2 - Flexential Colorado Corp. | — | — | 0 |
| AS20155US | OCO-1 - ORANGE COUNTY ONLINE | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS18706US | REALNETWORKS - REALNETWORKS LLC | — | — | 0 |
| AS51856US | SRSP-4-51856 - Aubrey Rose | — | 16 | 1 |
| AS18581US | ALLIANZLIFE - Allianz Technology of America, Inc. | — | — | 0 |
| AS18529US | PLEXUS-SYSTEMS-US3 - ROCKWELL AUTOMATION Inc. | — | — | 0 |
| AS2382US | WISCNET2-AS - WiscNet | — | — | 0 |
| AS10994US | TWC-10994-NA - Charter Communications Inc | — | — | 0 |
| AS11329US | ASN-USI - AT&T Corp. - ITS | — | — | 0 |
| AS11344US | YOUTUBE - YouTube, LLC | — | — | 0 |
| AS10675US | VIET-MY - Viet-My | — | — | 0 |
| AS10740US | OWO-AS - Origin Systems, INC. | — | — | 0 |
| AS10549US | EMINET - The EmiNet Domain | — | — | 0 |
| AS10507US | SPCS - Sprint Personal Communications Systems | — | — | 0 |
| AS13815US | TAI-ASN - Chieftain Capital Management Inc. | — | — | 0 |
| AS12255US | AMGEN - AMGEN, Inc. | — | — | 0 |
| AS13488US | 365DC-1 - BroadbandONE, LLC | — | — | 0 |
| AS13502US | VOYA-FINANCIAL - Voya Services Company | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |