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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 1 |
| AS19068US | ASN-TOMMYBAHAMA - Tommy Bahama Group, Inc. | 1K | — | 3 |
| AS13822US | MILTON-ACADEMY - Milton Academy | 1K | — | 1 |
| AS19458US | GLOBALSTAR-1 - Globalstar, Inc. | 1K | — | 4 |
| AS25731US | KNOX-BOX-LLC - Knox Box Networks | 1K | — | 4 |
| AS21530US | FISERV-EPF-OMAHA - Fiserv Solutions, LLC | 1K | 3 | 5 |
| AS32525US | UNDER-ARMOUR-PERFORMANCE-APPAREL - Under Armour, Inc. | 1K | — | 3 |
| AS19002US | FDBS-AS - Financial Database Services | 1K | — | 1 |
| AS200655US | GROUPM-FR-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS3431US | ESNET-AS - ESnet | 1K | — | 4 |
| AS42615US | igloo22225 June Slater | 1K | 69.9K | 11 |
| AS7221US | TWRS-PHL - Natural Wireless, LLC | 1K | — | 1 |
| AS53464US | CLADDED-GLASS-01 - Cladded Glass | 1K | — | 1 |
| AS11898US | TRTS - TRUNO Retail Technology Solutions | 1K | — | 4 |
| AS14947US | RETN-US - RETN US LLC | 1K | — | 1 |
| AS402146US | EXE-DEV - Bold Software Inc | 1K | 1 | 2 |
| AS30685US | KITS-AKR-OH-DC1 - KIEHL IT SERVICES, LLC | 1K | 4.1K | 4 |
| AS18612US | TRI-NET-SOLUTIONS - Tri-Net Solutions LLC. | 1K | — | 1 |
| AS393947US | FIRMFARM-ASN-V1 - Firm Farm | 1K | 98.3K | 5 |
| AS54039US | EIWIFI - Eastern Indiana WIFI, Inc. | 1K | — | 1 |
| AS26341US | CORELIGHTNET-CLOUD - Corelight, Inc. | 1K | 1 | 5 |
| AS40739US | SPYFU - Spy Fu, Inc. | 1K | — | 3 |
| AS399193US | NAVAJO-TECHNICAL-UNIVERSITY - Navajotech | 1K | — | 1 |
| AS395120US | DCE1 - Ashley Furniture Industries, Inc. | 1K | — | 2 |
| AS36562US | PRACTICE-VELOCITY - Practice Velocity, LLC. | 1K | — | 4 |
| AS63480US | PROSOURCE-01 - ProSource Technology Solutions | 1K | — | 4 |
| AS401375US | NYECOM-NET - Nyecom Teleservices | 1K | — | 1 |
| AS26192US | IMPAC-FUNDING - Impac Funding Corporation | 1K | — | 4 |
| AS401086US | ODY-ASN - Odyssey Logistics & Technology Corporation | 1K | — | 1 |
| AS19988US | PORTALSYSTEMS - Portal Systems, Inc. | 1K | — | 1 |
| AS396177US | JUMPFIBER - Jump Fiber | 1K | — | 1 |
| AS393959US | ABIT - AdvancedBITS, Inc | 1K | — | 3 |
| AS18907US | COLOVORE - Colovore LLC | 1K | 1 | 2 |
| AS40757US | MMG - MMG Insurance Company | 1K | — | 1 |
| AS400896US | HUSD-AS1 - HIGLEY UNIFIED SCHOOL DISTRICT #60 | 1K | — | 3 |
| AS32224US | EMPIRE - Empire Southwest | 1K | — | 4 |
| AS26017US | BETTENDORF-LIBRARY - Bettendorf Public Library | 1K | — | 1 |
| AS393435US | LYLE-01 - Lyle Research | 1K | 4.1K | 4 |
| AS17144US | NUANCE-NOD - Microsoft Corporation | 1K | 3 | 7 |
| AS20050US | SPPINTERNET01 - Southwest Power Pool | 1K | — | 4 |
| AS40614US | TALOS-HOUTX - Talos Energy LLC | 1K | — | 4 |
| AS395700US | OMB-ASN - Executive Office Of The President | 1K | 8 | 9 |
| AS47087US | AS-ALIC-1 - Ameritas Life Insurance Corp | 1K | — | 2 |
| AS36083US | IPDEPLOY - IPDeploy | 1K | 5 | 9 |
| AS393268US | SDMICH - Summit Digital, INC. | 1K | — | 4 |
| AS397889US | CARIBE-ASN - Caribe Royale | 1K | — | 4 |
| AS401801US | ILSOS - Illinois Secretary of State | 1K | — | 1 |