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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 |
| 768 |
| — |
| 3 |
| AS396281US | AGCOMTECH - AGILITY COMMUNICATIONS AND TECHNOLOGY SERVICES COMPANY | 768 | — | 3 |
| AS14780US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS402411US | AL-3144-402411-01 - Aeryte | 768 | 256 | 3 |
| AS22557US | IDENTITYDIGITAL - Identity Digital Inc. | 768 | — | 3 |
| AS12104US | CDE-ASN - State Farm Mutual Automobile Insurance Company | 768 | — | 3 |
| AS20160US | LSCPA - Lamar State College - Port Arthur | 768 | — | 3 |
| AS399014US | ESSLUX - Essilor of America, Inc. | 768 | — | 3 |
| AS54268US | CAPITALHEALTH - Capital Health System, Inc | 768 | — | 3 |
| AS36714US | CMG-MORTGAGE - CMG Mortgage, Inc. | 768 | — | 3 |
| AS394962US | PCT-ASN1 - PENNSYLVANIA COLLEGE OF TECHNOLOGY | 768 | — | 3 |
| AS11166US | JCOM-3 - J2 Cloud Services, LLC | 768 | — | 3 |
| AS53973US | FREEPOINT-COMMODITIES - Freepoint Commodities, LLC | 768 | — | 3 |
| AS25957US | KISARA-NETWORK-01 - Kisara Development LLC | 768 | 65.5K | 12 |
| AS11842US | REGAL-ENTERTAINMENT-AS - Regal Entertainment Group | 768 | — | 3 |
| AS401911US | MTRX - MAETRIX COMMUNICATIONS, LLC. | 768 | 4.1K | 3 |
| AS4565US | MEGAPATH2-US - GTT Americas, LLC | 768 | — | 3 |
| AS54926US | THRIVE-CAN3 - Thrive Operations, LLC | 768 | — | 2 |
| AS26338US | HYVE-MANAGED-HOSTING - Hyve Managed Hosting Corp Inc | 768 | 2 | 3 |
| AS402456US | BJERKERUD - Bjerkerud, | 768 | 3 | 6 |
| AS397192US | HTUL-CDN-01 - Hillside (Shared Services US) LLC | 768 | — | 3 |
| AS395394US | XYTEL - xyTel LLC | 768 | 65.5K | 5 |
| AS36172US | MHCC-AS001 - MOUNT HOOD COMMUNITY COLLEGE | 768 | — | 2 |
| AS10666US | ALLERGAN - Allergan, Inc. | 768 | — | 3 |
| AS558US | VEGANEXT - NV Next LLC | 768 | — | 3 |
| AS206646US | EHI-LDE-AS Enterprise Holdings, Inc. | 768 | — | 3 |
| AS35958US | CCN42 - MCCARRAN INTERNATIONAL AIRPORT | 768 | — | 3 |
| AS15358US | AEL-INET - American Equity Investment Life Insurance Company | 768 | — | 2 |
| AS15263US | GALLUP1 - Gallup | 768 | — | 3 |
| AS15343US | AM-EX - AMERIPRISE FINANCIAL SERVICES, LLC | 768 | — | 3 |
| AS22399US | COBA-1 - Commerzbank AG New York Branch | 768 | — | 3 |
| AS54593US | ATHEN-EPOC - Athenahealth | 768 | — | 3 |
| AS46718US | BTCONF-SON - BT Conferencing | 768 | — | 3 |
| AS25951US | HPINC - HP Inc. | 768 | — | 2 |
| AS12074US | ITSC - County of Saginaw | 768 | — | 3 |
| AS14310US | SNB-ASN - Safra National Bank Of New York | 768 | — | 3 |
| AS55164US | PLUS-1 - Plus Analytics, LLC | 768 | — | 3 |
| AS29935US | COTNET - City of Tampa, Florida | 768 | — | 3 |
| AS397085US | SIGUS - Signal Restoration Services | 768 | 256 | 4 |
| AS40043US | LIFESPAN - Brown University Health | 768 | — | 3 |
| AS42874US | GILEAD Gilead Sciences, Inc. | 768 | — | 3 |
| AS14280US | NETNATION - Ntirety, Inc. | 768 | 1 | 4 |
| AS397942US | RUBRIK-INC - Rubrik Inc | 768 | 4.1K | 3 |
| AS16659US | CROWN-AS-1 - Crown Castle USA | 768 | — | 3 |
| AS11386US | HEALTH-AND-HOSPITAL-CORPORATION-OF-MARION-COUNTY - HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY | 768 | — | 3 |
| AS30146US | TIBCO - TIBCO Software Inc. | 768 | — | 3 |
| AS11848US | SECUREVISION-GULFCOAST - SecureVision | 768 | 65.5K | 3 |