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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 1.5K |
| 4.1K |
| 4 |
| AS398453US | INCOMM-NET3 - InComm | 1.5K | — | 3 |
| AS53320US | INTERACTIVE-INTELLIGENCE-INC - Genesys Telecommunications Laboratories,Inc. | 1.5K | — | 5 |
| AS55270US | QIPMIA1 - Quik, LLC | 1.5K | 4.1K | 6 |
| AS399852US | HDD-BROADBAND - HDD Broadband Inc. | 1.5K | 4.1K | 4 |
| AS46121US | FTMS-01 - Florida Technology Managed Services, Inc. | 1.5K | — | 6 |
| AS18733US | ZENIMAXMEDIA - ZeniMax Media Incorporated | 1.5K | — | 6 |
| AS21856US | NOKIA-ASN - Nokia of America Corporation | 1.5K | 32 | 7 |
| AS13945US | PRISMTECHNOLOGIESABQ - PRISM Technologies | 1.5K | — | 6 |
| AS26950US | LIPPERT-AS1 - Lippert Components Manufacturing, Inc. | 1.5K | — | 2 |
| AS33345US | SIERRADATACENTERS - Sierra Experts | 1.5K | 4.1K | 4 |
| AS25676US | FEDEX-FREIGHT - FedEx Freight, Inc. | 1.5K | — | 6 |
| AS54695US | PROGENT-ASN-1 - Progent, Corp. | 1.5K | — | 5 |
| AS399700US | MANSFIELD-COMMUNITY-FIBER - Mansfield Community Fiber, Inc | 1.5K | 4.6K | 5 |
| AS396961US | INTERNET2-OSG - Internet2 | 1.5K | 6 | 12 |
| AS399510US | GEODIS-AMS - Geodis Logistics LLC | 1.5K | — | 6 |
| AS17351US | THINQ - THINQ | 1.5K | — | 3 |
| AS12186US | GVVME - GVVME | 1.5K | 65.6K | 8 |
| AS33414US | KENTCOUNTYMI - Kent County Information Systems | 1.5K | — | 3 |
| AS26995US | TELENETWORK - TeleNetwork | 1.5K | — | 4 |
| AS31845US | ISI COMMUNICATIONS - ISI Communications | 1.5K | 65.5K | 3 |
| AS399266US | PONENET - Z Plus LLC | 1.5K | 2 | 8 |
| AS402273US | INSTANTLY-AI - Instantly.ai | 1.5K | 65.5K | 5 |
| AS5237US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 1.5K | — | 6 |
| AS33723US | LENNAR - Lennar Corporation | 1.5K | — | 3 |
| AS401427US | SLMD-US-01 - Solidigm | 1.5K | — | 5 |
| AS33729US | JAVITS - Jacob K. Javits Convention Center | 1.5K | — | 2 |
| AS10977US | JIANYUELAB-AS - JianyueLab | 1.5K | 256 | 4 |
| AS13481US | AMS-AGD-PR - HEWLETT PACKARD ENTERPRISE COMPANY | 1.5K | — | 3 |
| AS500US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 1.5K | — | 6 |
| AS13624US | SNC-SPARKS - Sierra Nevada Corporation | 1.5K | — | 4 |
| AS32622US | TWRS-PW - Towerstream I, Inc. | 1.5K | — | 2 |
| AS32361US | ULTRALIGHT - UltraLight | 1.3K | 65.5K | 11 |
| AS36198US | THE-ZNSL-NETWORK - ZDM Network Solutions LLC | 1.3K | 9 | 7 |
| AS36088US | YAHOO-BCST-AC2 - Yahoo Holdings Inc. | 1.3K | 1 | 6 |
| AS18674US | FROST-BANK - Frost Bank | 1.3K | — | 5 |
| AS30714US | PHX-ASN - Axway Inc | 1.3K | 257 | 4 |
| AS394985US | HUDSONVELOCITY - City of Hudson, Ohio | 1.3K | — | 5 |
| AS46973US | REALOGY-WEBSERVICES - Realogy Group LLC | 1.3K | — | 5 |
| AS14711US | BRKTOOLS - INGERSOLL CUTTING TOOL COMPANY | 1.3K | — | 4 |
| AS22300US | FANDOM - Wikia, Inc. | 1.3K | — | 5 |
| AS32908US | TRIMBL-NUM - Trimble, Inc. | 1.3K | — | 5 |
| AS402509US | NET-BROBAW - Erobaw | 1.3K | — | 5 |
| AS14777US | YAHOO - Yahoo Holdings Inc. | 1.3K | 1 | 6 |
| AS394169US | NASSAU-COMMUNITY-COLLEGE - Nassau Community College | 1.3K | 256 | 6 |
| AS396021US | COMCAST-MES - Comcast Cable Communications, LLC | 1.3K | — | 4 |
| AS40661US | ESC6-NET - Education Service Center, Region VI | 1.3K | — | 2 |