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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 |
| 1K |
| 257 |
| 5 |
| AS46875US | HUNTSVILLEHOSPITAL - Huntsville Hospital | 1K | — | 4 |
| AS12142US | SULLIVAN-CROMWELL - SULLCROM | 1K | — | 4 |
| AS40262US | PANTONE-AS - Pantone Inc. | 1K | — | 4 |
| AS33120US | VIRGINIA-BEACH-CITY-PUBLIC-SCHOOLS - Virginia Beach City Public Schools | 1K | — | 3 |
| AS402940US | INTERFERE - Interfere | 1K | 1 | 5 |
| AS13401US | STARWOOD-HOTELS - Marriott International, Inc. | 1K | — | 1 |
| AS394107US | MOJAVE-COMMUNICATIONS - Mojave Communications, Inc. | 1K | — | 1 |
| AS19421US | LANDSEND - Lands' End, Inc. | 1K | — | 3 |
| AS395929US | VHL - Virtuwave Holdings LLC | 1K | — | 4 |
| AS17352US | APPLICATIONX - Application X | 1K | — | 4 |
| AS33715US | GOOGLE-THREAT-INTELLIGENCE - Google LLC | 1K | — | 1 |
| AS54092US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS55122US | DCCLLC - Digital Communications Consulting LLC | 1K | — | 2 |
| AS36073US | COMPORTSECURE-01 - ComportSecure LLC | 1K | — | 3 |
| AS62663US | TELECALL - Telecall | 1K | 4.1K | 4 |
| AS21937US | EEL-LTL - Estes Express Lines | 1K | — | 4 |
| AS14967US | NORTHMEMORIAL-HEALTHCARE-ASN - North Memorial Health Care | 1K | — | 1 |
| AS31637US | MECUK-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS399892US | ASN - Cloudtunnel | 1K | — | 1 |
| AS398263US | NYC-BROADBAND-PARTNERSHIP - NYC Broadband Partnership | 1K | 65.5K | 5 |
| AS395086US | SCDC-SC-DATA-CENTER - SC Data Center, Inc. | 1K | — | 3 |
| AS22446US | MEDLINE - Medline Industries | 1K | — | 3 |
| AS394098US | OFFSITEDATASYNC - OFFSITEDATASYNC INC | 1K | — | 4 |
| AS21955US | GRIFOLS - Grifols Inc. | 1K | — | 4 |
| AS22851US | NSU-SD - Northern State University | 1K | — | 4 |
| AS15342US | DDPMI-1 - DELTA DENTAL PLAN OF MICHIGAN | 1K | — | 4 |
| AS20061US | LIMITLESS1-ASN - Limitless Mobile, LLC | 1K | 2 | 6 |
| AS396411US | MICROPACT-ASH-DC - MicroPact Global, Inc | 1K | — | 4 |
| AS54821US | ALPINE-CONNECTIVE - Alpine Connective LLC | 1K | 4.1K | 2 |
| AS54437US | CEVALOGISTICS-US - CEVA LOGISTICS U.S., INC. | 1K | — | 4 |
| AS32182US | GMCC - Grange Mutual Casualty Co. | 1K | — | 2 |
| AS62541US | VSH-ASN - Vishay Intertechnology, Inc. | 1K | — | 3 |
| AS36326US | EDGENODE - Techwebhosting Internet Solutions LLC | 1K | — | 3 |
| AS22714US | SJC-ASN-01 - St. Joseph County Intermediate School District | 1K | — | 1 |
| AS53687US | DNI-AS - DataComm Networks Inc. | 1K | — | 4 |
| AS35996US | SV1-ENT-DC-VA1 - CentralColo, LLC | 1K | — | 4 |
| AS396828US | VRSN-AC50-340 - VeriSign Global Registry Services | 1K | 3 | 7 |
| AS53484US | WL-NA - Williams Lea LLC | 1K | — | 4 |
| AS396268US | VILOGICS-EBENSDC1 - viLogics, Inc. | 1K | — | 1 |
| AS2933US | NETNODE - Real/Time Communications | 1K | — | 1 |
| AS397712US | APOG-PITS - Apogee Telecom Inc. | 1K | — | 3 |
| AS395095US | GARNET-HEALTH - Orange Regional Medical Center | 1K | — | 4 |
| AS26948US | OLCC-AS1 - Orange Lake Country Club, Inc | 1K | — | 1 |
| AS13467US | OTA-BGP-01 - Oklahoma Turnpike Authority | 1K | — | 3 |
| AS36124US | BIZVOX - BizVox Communications Inc | 1K | — | 4 |
| AS983US | AKARI-NETWORKS - Akari Networks LLC | 1K | 4.1K | 5 |