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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 |
| 7.9K |
| — |
| 31 |
| AS11517US | BLUE-CROSS-AND-BLUE-SHIELD-OF-MINNESOTA - Blue Cross & Blue Shield of Minnesota | 7.9K | — | 17 |
| AS54947US | ZENIMAXONLINE - ZeniMax | 7.9K | — | 15 |
| AS11989US | WEBINT - HostPapa | 7.9K | — | 7 |
| AS33167US | SWOCA-TWASSIGNED - Southwest Ohio Computer Association | 7.9K | — | 7 |
| AS10689US | FVI-CHI - Fox Valley Internet | 7.9K | — | 31 |
| AS393406US | DIGITALOCEAN-AS393406 - DigitalOcean, LLC | 7.9K | — | 31 |
| AS8190US | MDNX - GTT Americas, LLC | 7.9K | — | 16 |
| AS26073US | COFRACTAL-001 - Cofractal, Inc. | 7.9K | 1.1M | 40 |
| AS402931US | ADAPTGROUP - AdaptGroup | 7.9K | 9 | 40 |
| AS3714US | KEC-NET - Kentucky Educational Computing Network | 7.9K | 65.5K | 9 |
| AS62864US | NILAS - net innovation llc | 7.9K | — | 22 |
| AS46149US | USI-2-ASN - University of Southern Indiana | 7.9K | 4.1K | 7 |
| AS1678US | DOW - The Dow Chemical Company | 7.9K | — | 25 |
| AS27022US | SIYEH-ASN-1 - Siyeh Corporation | 7.7K | — | 11 |
| AS7941US | INTERNET-ARCHIVE - Internet Archive | 7.7K | 1 | 9 |
| AS399541US | WRC-AS - Western Reserve Communications, LLC | 7.7K | — | 8 |
| AS23503US | CONSTELLATION-ENERGY - Exelon Corporation | 7.7K | 65.5K | 15 |
| AS8137US | DISNEYONLINE-AS - Disney Worldwide Services, Inc. | 7.7K | — | 8 |
| AS10353US | STCC-5 - Southwest Tennessee Community College | 7.7K | — | 6 |
| AS17157US | IHEARTMEDIA-AS-17157 - iHeartCommunications, Inc. | 7.7K | — | 30 |
| AS17248US | INTERGLOBECOMMUNICATIONSINC - InterGlobe Communications, Inc. | 7.7K | — | 6 |
| AS16743US | FTSBROADBAND - FTS Broadband | 7.7K | — | 13 |
| AS397016US | HAWKEYE-TELEPHONE-COMPANY - Hawkeye Telephone Company | 7.7K | — | 9 |
| AS23036US | NORTHWEST-MINNESOTA-SPECIAL-ACCESS-LLC - Northwest Minnesota Special Access, LLC | 7.7K | 4.1K | 11 |
| AS7786US | NPAC - NeuStar, Inc. | 7.7K | — | 25 |
| AS15335US | KAPLAN-TELEPHONE - KAPLAN TELEPHONE COMPANY, INC. | 7.7K | — | 8 |
| AS14877US | FL-14877 - FirstLight Fiber, Inc. | 7.7K | 65.5K | 18 |
| AS5015US | SHOUTING - Shouting Ground Technologies | 7.7K | — | 11 |
| AS398885US | AERWAVE - Aerwave, Inc. | 7.7K | 44 | 69 |
| AS3713US | ICFCONSULTINGGROUPINC - ICF International | 7.7K | 2 | 19 |
| AS40091US | WVVANET - WVVA.net Inc. | 7.7K | 4.4K | 31 |
| AS46263US | EDIALOG - e-Dialog, Inc | 7.7K | — | 20 |
| AS33176US | DTCCAAS - DTC Cable | 7.7K | — | 7 |
| AS393336US | CATALYST - Catalyst Host LLC | 7.7K | 6 | 33 |
| AS30614US | DELL-BLK - Dell, Inc. | 7.7K | 18 | 24 |
| AS33218US | BELZONICABLE - Belzoni Cable, LLC | 7.7K | 65.5K | 17 |
| AS400175US | MICROTRONIX-ESOLUTIONS - Microtronix ESolutions, LLC | 7.7K | 6.5K | 78 |
| AS11289US | AS11289 - SANDISK TECHNOLOGIES, INC. | 7.7K | — | 12 |
| AS62856US | DOCUS-6-PROD - Docusign, Inc | 7.7K | — | 17 |
| AS23381US | TRAVELERS - Travelers Property Casualty Corp. | 7.7K | — | 21 |
| AS400776US | SARASOTA-COUNTY-SCHOOLS - Sarasota County Schools | 7.7K | — | 4 |
| AS33680US | TELEPERFORMANCE-USA - TELEPERFORMANCE USA | 7.7K | — | 25 |
| AS26937US | MUNICH-RE-AMERICA - The Midland Company | 7.7K | — | 14 |
| AS395209US | MICROLOGIC - MicroLogic, Inc. | 7.7K | — | 15 |
| AS399143US | 4CEPA-FASTNET - 4-County Electric Power Association | 7.7K | 65.6K | 50 |
| AS393942US | AS393942 - WiredISP Inc. | 7.7K | — | 30 |