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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS393977US | GSB - Great Southern Bank | 512 | — | 2 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS16737US | STABLEHOST - Nerdie Networks LLC | 512 | — | 2 |
| AS26970US | DV-TRADING-LLC - DV TRADING, LLC | 512 | — | 2 |
| AS11741US | BENTONREA - BENTON REA POWERNET | 512 | — | 2 |
| AS53727US | AS-PENGUIN - Penguin Networks | 512 | 36 | 8 |
| AS14570US | ANSIBLE-NTP - Ansible Networks, LLC | 512 | — | 2 |
| AS397979US | AIRMAX-1 - Airmax | 512 | — | 2 |
| AS16898US | LOG-NET - LOG-NET, INC. | 512 | — | 2 |
| AS397401US | WILLIAM-HILL-01 - William Hill | 512 | — | 1 |
| AS11765US | NETSURION-LLC-AS11765 - Netsurion LLC | 512 | — | 1 |
| AS401596US | TAC-205-23 - Texas Association of Counties | 512 | — | 1 |
| AS397589US | AMERICAN-DREAM-NJ - AMEREAM NJP, LLC | 512 | 65.5K | 2 |
| AS398705US | CENSYS-ARIN-02 - Censys, Inc. | 512 | 2 | 4 |
| AS19732US | TGNA-WTSP - TEGNA Inc. | 512 | — | 2 |
| AS1642US | COLORCON - Colorcon Inc | 512 | — | 2 |
| AS19131US | LIVESS-01 - Living Essentials, LLC | 512 | — | 2 |
| AS20003US | MEMBERS1STFCU - Members 1st Federal Credit Union | 512 | — | 2 |
| AS395409US | NEOCITIES - Neocities | 512 | 16 | 3 |
| AS55284US | USAC-1 - Universal Service Administrative Company | 512 | — | 2 |
| AS399140US | SINGAPORE-DC - Red Hat, Inc. | 512 | 1 | 3 |
| AS46084US | ASRCFH-NET - ASRC FEDERAL HOLDING COMPANY, LLC | 512 | — | 2 |
| AS18729US | SHAWMUT - Shawmut Design & Construction | 512 | — | 2 |
| AS46644US | SOCIAL-BLADE - Social Blade LLC | 512 | 2 | 4 |
| AS46105US | ALPAON-NA-AS - Alpaon America LLC | 512 | — | 2 |
| AS11548US | HERITAGE-UNIV-AS - Heritage University | 512 | — | 2 |
| AS401239US | ASN-RKECO-NET - Roanoke County | 512 | — | 2 |
| AS11893US | LOLIGO-ASN - Loligo Cache Systems, Inc. | 512 | — | 2 |
| AS64228US | ONEIT - OneIT, Inc. | 512 | — | 2 |
| AS397502US | TGNA-WTOL - TEGNA Inc. | 512 | — | 2 |
| AS22921US | SEACNET - SEAC Network Solutions LLC | 512 | — | 2 |
| AS54120US | MFF - MARC FISHER LLC | 512 | — | 2 |
| AS23156US | VG-NET-01 - The Vincit Group | 512 | — | 2 |
| AS394918US | TBI-ASN-3 - TrueBlue, Inc. | 512 | — | 1 |
| AS20417US | STABILISERVERS - StabiliServers | 512 | 2 | 4 |
| AS218654US | SWISH-WORLD Swish World Group Inc. | 512 | 3 | 5 |
| AS46799US | SOSASN1 - SOS | 512 | — | 2 |
| AS16981US | EMMIS-1 - Emmis Communications Corp. | 512 | — | 2 |
| AS395990US | IN-ASN01 - InitiumNovum, LLC | 512 | — | 2 |
| AS27295US | LISD - Lewisville Independent School District | 512 | — | 1 |
| AS396276US | CAGE-CUBE-518 - Cage Cube Technologies, Inc. | 512 | — | 2 |
| AS396023US | DEMO-TEWKS - Demoulas Super Markets, Inc. | 512 | — | 2 |
| AS26943US | YOUR-ORG-INC-EURO - YOUR.ORG, INC. | 512 | 65.5K | 4 |
| AS36596US | FACC - Florida Association of Court Clerks, Inc. | 512 | — | 2 |
| AS64210US | ALTERA - Altera Corporation | 512 | — | 2 |
| AS53575US | AUSTIN-COLLEGE - Austin College | 512 | — | 2 |