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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 |
| 1K |
| 4.1K |
| 5 |
| AS4569US | ASHTON-NET1 - Ashton Systems Corporation | 1K | — | 1 |
| AS18443US | APSC - Alyeska Pipeline Service Company | 1K | — | 3 |
| AS395853US | NYCMESH - NYC Mesh Inc. | 1K | — | 4 |
| AS23427US | GLENBARD-HSD87 - Glenbard HSD #87 | 1K | — | 1 |
| AS23531US | SUNRISE-BANKS - Sunrise Banks | 1K | — | 2 |
| AS54135US | TGNA-WTLV - TEGNA Inc. | 1K | — | 4 |
| AS393492US | DIGALERT - Underground Service Alert of Southern California | 1K | — | 3 |
| AS63415US | GREAT-HEALTHWORKS-4150-BUILDING - Great Healthworks, Inc | 1K | 1 | 5 |
| AS54671US | WPCASN - WALSWORTH PUBLISHING COMPANY | 1K | — | 4 |
| AS11372US | 14WEST-AS - 14 W Administrative Services LLC | 1K | — | 4 |
| AS393968US | GOLDKEY-CORPORATION - GoldKey Corporation | 1K | — | 4 |
| AS3902US | GLAXOSMITHKLINE - GlaxoSmithKline | 1K | — | 4 |
| AS10634US | INET-COMPUTERS-INC - iNET Computers, Inc. | 1K | — | 3 |
| AS26330US | AVFUEL-CORPORATION - Avfuel Corporation | 1K | — | 2 |
| AS400423US | CATHOLIC-HEALTH - Catholic Health | 1K | — | 4 |
| AS46090US | AMX - LATAM Telecommunications, L.L.C. | 1K | — | 4 |
| AS399211US | LAKE-PLACID-FIBER - Lake Placid Fiber LLC | 1K | — | 1 |
| AS394001US | RRISD-AS-1 - Round Rock Independent School District | 1K | — | 3 |
| AS31817US | PSC - Progress Software Corp - CSG | 1K | — | 2 |
| AS19539US | IPONLY-US-AS - IP-Only Inc | 1K | 65.5K | 2 |
| AS23275US | LM-USA - Lycamobile USA Inc | 1K | — | 4 |
| AS401903US | CRIMSON-PACIFIC-NETWORKS - Crimson Pacific Networks, LLC | 1K | 21 | 10 |
| AS401486US | RAVNIX - RAVNIX LLC | 1K | 256 | 5 |
| AS397315US | REGION10-LEAP - Region 10 League for Economic Assistance and Planning, Inc. | 1K | — | 3 |
| AS394305US | JLINK-ASN - Jlink, Inc | 1K | — | 3 |
| AS393456US | X - United States Steel Corporation | 1K | — | 4 |
| AS399518US | HAWAIIPACIFICHEALTH-ASN-01 - Straub Clinic & Hospital | 1K | — | 4 |
| AS62909US | FCCU-ASN1 - FIRST COMMUNITY CREDIT UNION | 1K | 256 | 4 |
| AS25889US | BXS-NET-AS - BancorpSouth, Inc. | 1K | — | 2 |
| AS63311US | 20C - 20C, LLC | 1K | 400 | 7 |
| AS23290US | ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County | 1K | — | 1 |
| AS202639US | ON24 ON24, Inc | 1K | — | 1 |
| AS6111US | FHIS - ADVENTIST HEALTH SYSTEM/SUNBELT, INC. | 1K | — | 3 |
| AS397556US | IAA - Insurance Auto Auctions, Inc | 1K | 1 | 5 |
| AS18488US | VTLA - NTT Global Networks Incorporated | 1K | — | 4 |
| AS395046US | SEXING-TECHNOLOGIES - Sexing Technologies | 1K | — | 4 |
| AS16538US | PDC - Pacific Disaster Center | 1K | — | 1 |
| AS25714US | KCSR-ASN - The Kansas City Southern Railway Co. | 1K | — | 3 |
| AS54629US | AFSTORES-AS - Associated Food Stores, Inc. | 1K | — | 3 |
| AS399110US | DATACANOPY-DB-HOU3 - Data Canopy Colocation, LLC | 1K | — | 4 |
| AS13349US | TCU-NET - TEACHERS CREDIT UNION | 1K | — | 3 |
| AS33240US | DENTONS-CANADA-LLP - Dentons US LLP | 1K | — | 4 |
| AS32877US | SKYWAYNETWORKS - Skyway Networks | 1K | — | 2 |
| AS11521US | MODUSLINK - ModusLink Corporation | 1K | — | 4 |
| AS32511US | ASANTEHEALTHSYSTEM-1 - Asante Health System | 1K | — | 1 |
| AS22891US | STANDARDINSURANCE - Standard Insurance Company | 1K | — | 4 |