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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 | 21,149 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS395957US | POLARSEMI - Polar Semiconductor, LLC | 256 | — | 1 |
| AS63418US | MAN-INVESTMENTS-US - Man Investments Holdings, Inc | 256 | — | 1 |
| AS14617US | SELMED-2 - Select Medical Corporation | 256 | — | 1 |
| AS393703US | IDEAPS-TX - IDEA Public Schools | 256 | — | 1 |
| AS397273US | RENDER - Render | 256 | — | 1 |
| AS396508US | MICHELS-CORPORATION - Michels Corporation | 256 | — | 1 |
| AS32892US | SOTELCO-01 - Southern Telecommunications Company, LLC. | 256 | — | 1 |
| AS22704US | CEI-COLLEGE-OF-EASTERN-IDAHO - College of Eastern Idaho | 256 | — | 1 |
| AS394123US | ASBURYINTEGRATEDTECHNOLOGIES - The Asbury Group Integrated Technologies, LLC | 256 | — | 1 |
| AS14180US | AS-KOGNITIVE - Kognitive Networks | 256 | — | 1 |
| AS26363US | MEDTRONIC-AS-2 - Medtronic, Incorporated | 256 | — | 1 |
| AS14099US | OTTOH - otto Host LLC | 256 | 256 | 2 |
| AS398556US | MCDUSASN01 - McDonald's Corporation | 256 | — | 1 |
| AS397291US | LOGICMONITOR-CORPORATE - LogicMonitor, Inc. | 256 | — | 1 |
| AS19896US | AS-ALBROHOLDINGS-1 - Albro Holdings LLC | 256 | 1 | 2 |
| AS398958US | MORGAN-ASN-EV-2 - Morgan Stanley | 256 | — | 1 |
| AS397258US | GTRC-01 - Graton Resort and Casino | 256 | — | 1 |
| AS210347US | ARROWBLACKLLC ARROWBLACK LLC | 256 | 2 | 3 |
| AS30138US | ARTECH-INFO - Artech Information Systems LLC | 256 | — | 1 |
| AS398443US | NWCC - Northwest Mississippi Community College | 256 | — | 1 |
| AS400477US | ALASKA-COURT-SYSTEM - Alaska Court System | 256 | 4.1K | 2 |
| AS16725US | PHILLYIX-CACHES - Philadelphia Internet Exchange | 256 | — | 1 |
| AS396389US | OAA-COX - Omaha Airport Authority | 256 | — | 1 |
| AS19887US | KIASN - KI- | 256 | — | 1 |
| AS33124US | STORMDADDYISP - Storm Daddy Residential Broadband LLC | 256 | — | 1 |
| AS22695US | PLAYGROUND - Playground Global, LLC | 256 | 1 | 2 |
| AS199626US | FLAMEGRID-LLC Flamegrid LLC | 256 | — | 1 |
| AS401227US | JOULEWORKS - Jouleworks | 256 | 3 | 4 |
| AS63037US | ERISCO - ERISCO, LLC | 256 | 65.5K | 2 |
| AS63189US | ANDESASERVICESINC - Andesa Services, Inc | 256 | — | 1 |
| AS36128US | HCTC-205 - Hillsborough County Tax Collector | 256 | — | 1 |
| AS16770US | ASTGEN - Astoria Generating Company, L.P. | 256 | — | 1 |
| AS402028US | ZEPHYR-BROADBAND - Zephyr Broadband, LLC | 256 | 8.2K | 3 |
| AS12081US | GREENHECK - Greenheck Fan | 256 | — | 1 |
| AS23335US | ARKNET-AIRFI - ArkNet AirFi LLC | 256 | — | 1 |
| AS16859US | NAPHCARE-INC - NaphCare, Inc. | 256 | — | 1 |
| AS22236US | UNITEDBANCORP - The Citizens Savings Bank | 256 | — | 1 |
| AS400161US | HAWAIIRESEARCH - Academy for Internet Research Limited Liability Company | 256 | — | 1 |
| AS399634US | CC-VISA-01 - Cardinal Commerce Corporation | 256 | — | 1 |
| AS22293US | INSP-AS1 - InfoSpace Holdings, LLC | 256 | — | 1 |
| AS398360US | CKT-CLOUD - Common Knowledge Technology Inc | 256 | — | 1 |
| AS396335US | LRHS-LAKELAND-FL - Lakeland Regional Health Systems, Inc | 256 | — | 1 |
| AS394549US | GEMAHS01 - GEMA/HS | 256 | — | 1 |
| AS394879US | PEMANET - Pennsylvania Emergency Management Agency | 256 | — | 1 |
| AS397729US | FCMC-68234330 - Fulton County Medical Center | 256 | — | 1 |
| AS397812US | LIT-CLOUD-01 - Live Information Technology Consulting Group, LLC | 256 | — | 1 |