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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS21635US | WWCUSA - World Wide Communications USA Inc. | 256 | — | 1 |
| AS207465US | NetDEF-US Network Device Education Foundation Inc | 256 | 3 | 4 |
| AS400048US | THDA - THDA | 256 | — | 1 |
| AS400932US | TECPRESSO-NET - TECPRESSO INC. | 256 | 256 | 2 |
| AS398988US | NIPCO - Northwest Iowa Power Cooperative | 256 | — | 1 |
| AS396508US | MICHELS-CORPORATION - Michels Corporation | 256 | — | 1 |
| AS19336US | BLAIN-SUPPLY-PRIMARY - BLAIN SUPPLY, INC | 256 | — | 1 |
| AS402028US | ZEPHYR-BROADBAND - Zephyr Broadband, LLC | 256 | 8.2K | 3 |
| AS54367US | RILIN - State of Rhode Island General Assembly | 256 | — | 1 |
| AS11813US | NATIXIS-NORTH-AMERICA-LLC - Natixis North America LLC | 256 | — | 1 |
| AS30153US | BBRG-ASN - Bridon American Corporation | 256 | — | 1 |
| AS910US | NORTA-CANAL - RTA | 256 | — | 1 |
| AS26964US | INGRAMBARGE-1 - INGRAM BARGE COMPANY | 256 | — | 1 |
| AS397898US | PTGSERVICES - Power to Grow Services LLC | 256 | — | 1 |
| AS400935US | APOG-BEREACOLLEGE - Apogee Telecom Inc. | 256 | — | 1 |
| AS400179US | PDQCOM - PDQ.com Corporation | 256 | 2 | 3 |
| AS22769US | VSCU-1 - Valley Strong Credit Union | 256 | — | 1 |
| AS53900US | ORBIMED - OrbiMed Advisors, LLC | 256 | — | 1 |
| AS400786US | PFS - PFS Ltd | 256 | — | 1 |
| AS395847US | MTHSD207 - Maine Township High School District 207 | 256 | — | 1 |
| AS19503US | NYMAGDIA-LT-CL - Magnetar Capital LLC | 256 | 1 | 2 |
| AS22415US | AVANTWIRELESS - AvantWireless LLC | 256 | — | 1 |
| AS402284US | LEWISNY-NET - Lewis County, New York | 256 | — | 1 |
| AS401257US | LP-SUBNET--69 - LIBOR | 256 | — | 1 |
| AS26765US | REDUNDANT-INTERNET - Bountiful City | 256 | — | 1 |
| AS14936US | CLOUDHQDATACENTERS - CloudHQ, LLC | 256 | — | 1 |
| AS23880US | Yahoo-AEA - Internet content provider | 256 | 1 | 2 |
| AS395820US | ISG-SECURITY - Integrated Security Group | 256 | — | 1 |
| AS396219US | CBEC - Craig Botetourt Electric Cooperative | 256 | — | 1 |
| AS54751US | VEDP - Virginia Economic Development Partnership | 256 | — | 1 |
| AS18860US | AS19876 - Berger Schatz LLP | 256 | — | 1 |
| AS62495US | IDISCOVER-LLC - I Discover, LLC | 256 | — | 1 |
| AS54546US | FERRARI-NORTH-AMERICA - Ferrari North America, Inc. | 256 | — | 1 |
| AS401733US | WTS-MSP - Wachter Technology Solutions | 256 | — | 1 |
| AS62528US | CNV-MTK-CORP - Convey Compliance Systems, Inc. | 256 | — | 1 |
| AS397675US | ASD-WHP-BLOCK - Armstrong School District | 256 | — | 1 |
| AS23055US | CITYOFNAMPA - City of Nampa | 256 | — | 1 |
| AS206718US | AS RFE/RL, INC. | 256 | — | 1 |
| AS402117US | WHITE-TIE-PRODUCTIONS - White Tie Productions LLC | 256 | — | 1 |
| AS15314US | JENZABAR-ASN1 - jenzabar inc | 256 | — | 1 |
| AS40008US | REDWOOD-MATERIALS - Redwood Materials, Inc. | 256 | — | 1 |
| AS54016US | DN-VA - Diebold Nixdorf, Incorporated | 256 | — | 1 |
| AS401045US | KNOXCOGOVT-01 - Knox County Government | 256 | — | 1 |
| AS395573US | IBTCONNECT - IBT Connect LLC | 256 | 4.1K | 2 |
| AS136540US | OGILVY-AS-AP - The Ogilvy Group, LLC. | 256 | — | 1 |
| AS396148US | DADDARIO - D'Addario & Company Inc. | 256 | — | 1 |