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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 |
| 512 |
| — |
| 2 |
| AS402063US | XANTIUM-AS-01 - XANTIUM CONTRACTCO LLC | 512 | — | 2 |
| AS11035US | KCPA1 - The Raymond F. Kravis Center for the Performing Arts, Inc. | 512 | — | 1 |
| AS27270US | SFM - SFM Mutual Insurance Company | 512 | — | 2 |
| AS399553US | HB-MAIN-ASN - Trustmark Health Benefits | 512 | — | 2 |
| AS400699US | KITSAPWIFI - KitsapWiFi | 512 | 4.1K | 3 |
| AS395989US | DAYSTAR-3901 - Daystar Television Network | 512 | — | 2 |
| AS15349US | AS-NJ1-DIA - Guggenheim Services LLC | 512 | — | 2 |
| AS401000US | BYTENAP-NETWORKS-LLC - ByteNAP Networks LLC | 512 | — | 2 |
| AS393512US | AGC-NW - AGC Networks Inc | 512 | — | 2 |
| AS20446US | DUKELANA-20446 - Dukelana | 512 | 5 | 7 |
| AS31965US | COYOTE-LOGISTICS - COYOTE LOGISTICS LLC | 512 | — | 2 |
| AS36303US | VICKERY-INTERNET - Vickery Internet | 512 | 256 | 3 |
| AS393613US | VACU-ASN-1 - Virginia Credit Union, Inc. | 512 | — | 2 |
| AS6304US | STAIRWELL - Stairwell, Inc | 512 | 256 | 3 |
| AS393625US | FNS-ASN - OPTIV SECURITY INC | 512 | — | 2 |
| AS21822US | JDBS - JD Byrider Systems Inc | 512 | — | 2 |
| AS32689US | TGNA-KREM - TEGNA Inc. | 512 | — | 2 |
| AS32805US | O365-ENABLEMENT - Securitas Security Services USA, Inc | 512 | — | 2 |
| AS401164US | EPS - Elizabeth Board of Education | 512 | 514 | 6 |
| AS398758US | AVONDALE - CITY OF AVONDALE | 512 | — | 2 |
| AS397037US | CITY-OF-AMARILLO - City of Amarillo | 512 | — | 2 |
| AS54459US | TGS-1 - TGS Management Company, LLC | 512 | — | 2 |
| AS55111US | CALVERT-COUNTY - Calvert County | 512 | — | 1 |
| AS32617US | STEAK-N-SHAKE - The STEAK N SHAKE Company | 512 | — | 2 |
| AS401363US | LYNCROSS - Lyncross LLC | 512 | — | 2 |
| AS398320US | TALBOT-EMERGENCY-SERVICES-01 - Talbot County Department of Emergency Services | 512 | — | 2 |
| AS33415US | PERKINSCOIE-ASN - Perkins Coie, LLP | 512 | — | 2 |
| AS2636US | LOUISVILLE-MSD-ASN-01 - LOUISVILLE AND JEFFERSON COUNTY METROPOLITAN SEWER DISTRICT | 512 | — | 1 |
| AS400458US | FEXTEL-DC - ViciDial Group | 512 | 1 | 3 |
| AS35907US | NANTHEALTH - NaviNet Inc. | 512 | — | 2 |
| AS397624US | PH-LSK-001 - Parker Hannifin Corporation | 512 | — | 1 |
| AS402435US | RUMPKE-ASN - RUMPKE | 512 | — | 2 |
| AS5036US | WCA - Whalley Computer Associates | 512 | — | 2 |
| AS54834US | CDP - CUSTOM DATA PROCESSING | 512 | — | 2 |
| AS20416US | PRYSMIAN-01 - Prysmian Cables and Systems USA LLC | 512 | — | 1 |
| AS62774US | CLEVELAND-BROWNS - Cleveland Browns | 512 | — | 2 |
| AS40263US | BCS-1 - Bear Cloud Solutions, Inc. | 512 | 1 | 3 |
| AS23227US | NIKON - Nikon, Inc. | 512 | — | 2 |
| AS397719US | TECHSTYLE-FASHION-GROUP - TechStyle, Inc. | 512 | — | 2 |
| AS12113US | DAWN-FOOD-PRODUCTS - Dawn Food Products, Inc. | 512 | — | 2 |
| AS22694US | CNBC - NBCUniversal | 512 | — | 2 |
| AS40686US | HBK-ROSEWOOD - HBK Services LLC | 512 | — | 2 |
| AS32099US | NYSOAG-AS - New York State Office of the Attorney General | 512 | — | 2 |
| AS54554US | TIG-AS - Turner Industries Group, LLC. | 512 | — | 2 |
| AS400964US | COHC - College of the Holy Cross | 512 | — | 2 |
| AS400550US | SM-AS - Suburban Marine, Inc. | 512 | 5 | 7 |