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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 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 | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| FLOOR-AND-DECOR - Floor and Decor Outlets of America, Inc. |
| 512 |
| — |
| 2 |
| AS33208US | EPIC-HOSTING-3 - Epic Hosting, LLC | 512 | — | 2 |
| AS64288US | MASONITE - Masonite Corporation | 512 | — | 2 |
| AS401460US | METROPLUS-HEALTH - METROPLUS HEALTH PLAN, INC. | 512 | — | 2 |
| AS394651US | AKUNA-BGP - Akuna Capital LLC | 512 | — | 2 |
| AS25688US | CARTERS - The William Carter Company | 512 | — | 2 |
| AS4966US | CASELLAWASTE - Casella Waste System Inc | 512 | — | 2 |
| AS994US | AS-VIIRTUE - Viirtue LLC | 512 | — | 2 |
| AS15249US | XPRESS-DATA - Xpress Data, Inc. | 512 | — | 2 |
| AS32854US | PCTCU-ASN - Achieva Credit Union | 512 | — | 2 |
| AS27507US | XTREME-INTERNET - Xtreme Internet | 512 | — | 2 |
| AS63395US | FLEXTRADE-SYSTEMS-INC - Flextrade Systems, Inc. | 512 | — | 2 |
| AS21930US | INFORMATICA - Informatica LLC | 512 | — | 2 |
| AS54978US | ZYWAV-MKE-ASN - ZYWAVE INC | 512 | — | 2 |
| AS53710US | OWENS-CORNING - Owens-Corning | 512 | 8 | 2 |
| AS17405US | FISERV-CORPORATE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS393746US | MAXHOST-IO - Amazing Creations and More LLC | 512 | 5 | 7 |
| AS13755US | SPJC - St. Petersburg College | 512 | — | 1 |
| AS32833US | SMP-1801 - Standard Motor Products, Inc | 512 | — | 2 |
| AS19126US | KIZAWIRELESS - KIZA | 512 | — | 2 |
| AS20269US | VAIL-SCHOOL-DISTRICT-1 - Vail School District | 512 | — | 2 |
| AS11760US | CHFA - Connecticut Housing Finance Authority | 512 | — | 2 |
| AS215406US | paymentpass PaymentPass Inc. | 512 | — | 2 |
| AS46832US | UNIVERSITY-OF-MISSOURI-SYSTEM-INTER-CAMPUS-NETWORK - University of Missouri - dba the Missouri Research and Education Network (MOREnet) | 512 | — | 2 |
| AS400659US | DAVEYGROUPLLC-ASN - Davey Group LLC | 512 | 1 | 3 |
| AS961US | ACHIEVE-US - Achieve Wireless Inc | 512 | 257 | 4 |
| AS36674US | ULINE - Uline | 512 | — | 2 |
| AS31803US | MMPLP - Magellan Midstream Partners, L.P. | 512 | — | 2 |
| AS33482US | ASN-CARDTRONICS - CARDTRONICS USA INC | 512 | — | 2 |
| AS22377US | ATSOL - American Traffic Solutions, Inc | 512 | — | 2 |
| AS399400US | INSPIRO-RELIA-US - Inspiro Relia US, Inc. | 512 | — | 2 |
| AS26334US | BAIN-WTR - Bain & Company | 512 | — | 2 |
| AS397170US | COMPASS-FOUNDATION - COMPASS FOUNDATION LLC | 512 | 768 | 5 |
| AS397378US | PHOENIXNAP-BRA - PhoenixNAP LLC | 512 | 257 | 4 |
| AS396041US | HFC-ASN - HollyFrontier Corporation | 512 | — | 2 |
| AS394770US | AXIGENT-TECHNOLOGIES-GROUP - Axigent Technologies Group, Inc. | 512 | 65.5K | 3 |
| AS55261US | DMISTL - DISTRIBUTION MANAGEMENT INC | 512 | — | 2 |
| AS393716US | INTRADA-AS000 - Intrada Technologies, Inc | 512 | — | 1 |
| AS36153US | VGC-AMER-ASN - Vertiv | 512 | — | 2 |
| AS14508US | THEMASCHHOFFS - The Maschhoffs, LLC | 512 | — | 2 |
| AS11962US | EMPIRE5882300 - Empire Today LLC | 512 | — | 2 |
| AS54362US | OGDEN-CITY-CORPORATION - Ogden City Corporation | 512 | — | 1 |
| AS46139US | METASOURCE - Metasource LLC | 512 | — | 2 |
| AS396291US | NCH-HEALTHCARE-SYSTEM - NCH Healthcare System, Inc. | 512 | — | 2 |
| AS402806US | DUOCIRCLE - DuoCircle | 512 | — | 2 |
| AS12168US | DANAONMISSIONBAY-GUEST-INTERNET - The Dana On Mission Bay | 512 | — | 1 |
| AS22151US | BREAN-CAPITAL - Brean Murray & Co., Inc. | 512 | — | 2 |