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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 | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| — |
| 2 |
| AS396481US | SKYHI-1 - SkyHi Broadband | 512 | — | 2 |
| AS53483US | RSP - ReSource Pro, LLC | 512 | — | 2 |
| AS30522US | MNMC - Mount Nittany Medical Center | 512 | — | 2 |
| AS393971US | MLKJAMHC - Martin Luther King Jr., Healthcare Corporation | 512 | — | 2 |
| AS398866US | INTERBANK-01 - InterBank | 512 | — | 2 |
| AS7448US | CHOICE-HOTELS - Choice Hotels International, Inc. | 512 | — | 2 |
| AS394623US | AHA-MH-BGP - American Hospital Association | 512 | — | 2 |
| AS54787US | MYRIAD-SSF-01 - Myriad Genetics, Inc. | 512 | — | 2 |
| AS46870US | NJRNET-2009 - New Jersey Resources | 512 | — | 2 |
| AS13849US | BLOCKINETIC - Blockinetic LLC | 512 | 4.1K | 3 |
| AS395037US | ASSFG01 - Sammons Financial Group, Inc. | 512 | — | 2 |
| AS395725US | USACS-1001 - USACS | 512 | — | 2 |
| AS10985US | CURTIS-ASNUM - Curtis Instruments, Inc. | 512 | — | 2 |
| AS203729US | igloo22225 June Slater | 512 | 4 | 6 |
| AS30483US | TEXAS-GAS-TRANSMISSION - TEXAS GAS TRANSMISSION, LLC | 512 | — | 2 |
| AS19131US | LIVESS-01 - Living Essentials, LLC | 512 | — | 2 |
| AS30564US | LSUS - Louisiana State University in Shreveport | 512 | — | 2 |
| AS14635US | VERMONT-STUDENT-ASSISTANCE-CORPORATION - Vermont Student Assistance Corporation | 512 | — | 2 |
| AS18583US | HATTERASCPC - Hatteras CPC | 512 | — | 2 |
| AS36551US | COMPASSION-INTL-GMC1 - Compassion International, Inc. | 512 | — | 2 |
| AS393465US | VEOLIA-NA - Veolia Environnement North America Operations, LLC | 512 | — | 2 |
| AS36471US | KDSS-23-36471 - Kratos Defense & Security Solutions, Inc. | 512 | — | 2 |
| AS62498US | TGNA-WLTX - TEGNA Inc. | 512 | — | 2 |
| AS399238US | WELLS-NV-BEEHIVE - Satview Broadband LTD | 512 | — | 2 |
| AS25770US | SHRM - Society for Human Resource Management | 512 | — | 2 |
| AS11893US | LOLIGO-ASN - Loligo Cache Systems, Inc. | 512 | — | 2 |
| AS54236US | PPPA-ASN - Pacific Press Publishing Association, Inc | 512 | — | 2 |
| AS400828US | HCDL-ATLANTA-DATA-CENTER - H5 Data Centers | 512 | 4.1K | 3 |
| AS396505US | EMC - ENLOE MEDICAL CENTER | 512 | — | 1 |
| AS27295US | LISD - Lewisville Independent School District | 512 | — | 1 |
| AS18899US | AS-JDASOFTSCT - Blue Yonder, Inc | 512 | — | 2 |
| AS25785US | REDL-1 - Real Estate Digital LLC | 512 | — | 2 |
| AS399241US | OCEAN-BANK - Ocean Bank | 512 | — | 2 |
| AS400045US | DUMONT-TELEPHONE-COMPANY - Dumont Telephone Company | 512 | 256 | 3 |
| AS19482US | GTLLP - Greenberg Traurig P.A | 512 | — | 2 |
| AS25952US | AEAINVESTORS - AEA Investors Inc. | 512 | — | 2 |
| AS397925US | REDEYE-ATL-DC2 - RedEye Network Solutions LLC | 512 | — | 2 |
| AS54620US | GNSGLOBAL - Generic Network Systems, LLC | 512 | — | 2 |
| AS54918US | INX-01 - Infor (US), Inc | 512 | — | 2 |
| AS32192US | EMPRISEBANK - EMPRISE BANK | 512 | — | 1 |
| AS30367US | STRATEGIC-VALUE-PARTNERS - Strategic Value Partners | 512 | — | 2 |
| AS17032US | QUALCOMM-QWBS-SD - Qualcomm, Inc. | 512 | — | 2 |
| AS26943US | YOUR-ORG-INC-EURO - YOUR.ORG, INC. | 512 | 65.5K | 4 |
| AS53763US | LAKESIDE - Lakeside Network, LLC | 512 | 256 | 3 |
| AS402248US | BOLD-AWC-HED - Apogee Telecom Inc. | 512 | — | 1 |
| AS396323US | JCFS - Johnson Controls Federal Systems Inc. | 512 | — | 2 |