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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 6.1K |
| — |
| 6 |
| AS22301US | APC-CC-CUSTOMERS - RingSquared CC | 6.1K | — | 2 |
| AS19919US | VSW - VA SkyWire, LLC | 6.1K | 1M | 3 |
| AS29987US | SINFONY6 - Sinfony6, LLC | 6.1K | — | 21 |
| AS53834US | DINCL - dinCloud Inc. | 6.1K | 32.8K | 10 |
| AS397651US | SNEAKER-SERVER - Sneaker Server, LLC | 6.1K | 65.5K | 25 |
| AS22192US | SSHENET - Pennsylvania State System of Higher Education | 6.1K | — | 18 |
| AS26851US | PBCC - Palm Beach State College | 6.1K | — | 5 |
| AS40068US | NEOVERA-AS40068 - Neovera, Inc. | 6.1K | — | 3 |
| AS31758US | MLGC-AS - Griggs County Telephone Co. | 6.1K | — | 2 |
| AS33284US | LBI-ASN - LBiSat, LLC | 6.1K | — | 24 |
| AS32866US | SOLERA-HOLDINGS - Solera Holdings, LLC | 6.1K | — | 6 |
| AS14922US | IPSOFT-US-ASN1 - IPsoft | 6.1K | — | 10 |
| AS54045US | WAVETECHSYSTEMS - Wavetech Systems, LLC. | 6.1K | — | 9 |
| AS36294US | WINFIELD-WIRELESS - Clark County Computer Connections | 6.1K | — | 3 |
| AS393230US | DM-TECH-INTERNET - DM-Tech Internet | 6.1K | — | 10 |
| AS15118US | SIUMED - Southern Illinois University - School of Medicine | 6.1K | — | 3 |
| AS32575US | DIGICERT - DigiCert, Inc. | 6.1K | 257 | 18 |
| AS46414US | OTELCO-MA - GoNetSpeed | 6.1K | 4.1K | 20 |
| AS26088US | INLANDTELEPHONE - Inland Internet | 6.1K | — | 4 |
| AS23228US | AS1-CO-EL-PASO-TX - The County of El Paso | 6.1K | — | 9 |
| AS4497US | UPSTEL-NET - Upsala Co-operative Telephone Association | 6.1K | — | 5 |
| AS19982US | TWRS-FL - Natural Wireless, LLC | 6.1K | — | 4 |
| AS64233US | TERAMUNDI - Teramundi | 5.9K | — | 11 |
| AS25733US | LEAR - Lear Corporation (LEA) | 5.9K | — | 8 |
| AS396259US | TERIDION1 - Teridion inc | 5.9K | — | 23 |
| AS989US | ANAXA3-ASN - ASPnix | 5.9K | 1 | 24 |
| AS32695US | WHITE-RIVER-CONNECT - White River Connect | 5.9K | 73.7K | 12 |
| AS7247US | MOJO - Mojo Networks | 5.9K | 257 | 10 |
| AS11609US | ELAVON - ELAVON | 5.9K | — | 16 |
| AS6998US | BRITEVOICE - Concentrix CVG Brite Voice Systems LLC | 5.9K | — | 12 |
| AS33293US | BROADVOICE-LAX - SYNDEO LLC | 5.9K | — | 9 |
| AS998US | HYPESTATUS - HypeStatus Inc | 5.9K | 4.1K | 10 |
| AS32022US | CHC-AS - Children's Hospital Colorado | 5.9K | — | 8 |
| AS16841US | GBLIT-ASN1 - GLOBAL IT | 5.9K | — | 14 |
| AS3791US | ASCENSION-KSWIC - Ascension Technologies | 5.9K | — | 23 |
| AS33US | HPINC - HP Inc. | 5.9K | — | 9 |
| AS23500US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS23500 - The Bank of New York Mellon Corporation | 5.9K | — | 18 |
| AS4136US | QTS - Quality Technology Services, LLC | 5.9K | 65.5K | 6 |
| AS14991US | IL2K - ElkhartNet, Inc | 5.9K | — | 6 |
| AS14072US | WASH-DC-CITY-GOVT - Government of the District of Columbia | 5.9K | — | 14 |
| AS400696US | MIBURA-1 - MIBURA, INC. | 5.9K | 458.8K | 40 |
| AS54241US | BOLT-INTERNET - Midvale Telephone Exchange, Incorporated | 5.9K | 65.5K | 9 |
| AS399606US | IMAGINGBAY - Imaging Bay, Inc. | 5.9K | 4 | 27 |
| AS33346US | MONSTERBROADBAND - Point Broadband Fiber Holding, LLC | 5.9K | 4.1K | 10 |
| AS4282US | CENTURYLINK-TSDS-FLFTMY - CenturyLink Communications, LLC | 5.9K | — | 4 |
| AS397031US | GALAXYGATE - GALAXYGATE, LLC | 5.9K | 2.1K | 20 |