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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS16697US | CITY-OF-COLUMBIA-MO - City of Columbia, MO | 256 | — | 1 |
| AS14619US | AS-THERA-US - THERA NETWORKS | 256 | 4.1K | 2 |
| AS22643US | WESTEDORG - WestEd | 256 | — | 1 |
| AS54181US | SJH-BANGOR-AS1 - ST JOSEPH HOSPITAL | 256 | — | 1 |
| AS18537US | PPD-AUSTIN - PPDI | 256 | — | 1 |
| AS400216US | PARKWAY-SCHOOL-DISTRICT - Parkway School District | 256 | — | 1 |
| AS27228US | PHILLYIX-INFRA - Philadelphia Internet Exchange | 256 | 4.1K | 2 |
| AS20261US | MSA-CORP - Medical Services of America | 256 | — | 1 |
| AS16402US | HKUSA - Human Kinetics, Inc. | 256 | — | 1 |
| AS16533US | AS-SAFETY-INSURANCE - Safety Insurance Company | 256 | — | 1 |
| AS395625US | FISC-INT-ASN - Financial Institution Service Corp. | 256 | — | 1 |
| AS30053US | DUQUESNE-CAPITAL-MANAGEMENT-LLC - DUQUESNE CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS19987US | MIWAVE-ASN01 - MiWave | 256 | — | 1 |
| AS62732US | BCC-BGP - Boston Coach Corp. | 256 | — | 1 |
| AS402211US | WRM-033 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS69US | UPENN-NETWORK-LAB - University of Pennsylvania | 256 | — | 1 |
| AS397486US | COMMERCECITY-NET - City of Commerce City | 256 | — | 1 |
| AS40277US | CROUSE-HOSPITAL-AS - Crouse Hospital | 256 | — | 1 |
| AS395631US | KASD - Kutztown Area School District | 256 | 16 | 2 |
| AS5062US | APPLI-39-5062 - Applied Microsystems, Inc. | 256 | — | 1 |
| AS40194US | MARINEBIO - MBL | 256 | — | 1 |
| AS394428US | CONNECTURE-156 - Connecture, Inc. | 256 | — | 1 |
| AS19302US | USCC-DC - US Chamber of Commerce | 256 | — | 1 |
| AS22470US | NBME - National Board of Medical Examiners | 256 | — | 1 |
| AS22875US | LIFEU - Life University, INC. | 256 | — | 1 |
| AS16834US | WEBSTER-BANK - Webster Bank, National Association | 256 | — | 1 |
| AS27478US | AKR-WPNY - Acadia Realty Trust | 256 | — | 1 |
| AS21696US | MURPHYTX - City of Murphy | 256 | — | 1 |
| AS400189US | PACKETCOVE-AS400189 - PacketCove, LLC | 256 | — | 1 |
| AS26382US | APAHQ - Allied Pilots Association | 256 | — | 1 |
| AS398111US | MAVERICK-TRANSPORTATION-LLC-01 - Maverick Transportation, LLC | 256 | — | 1 |
| AS53773US | PARACOGAS-ASN - PARACO GAS CORPORATION | 256 | — | 1 |
| AS26495US | CTCCP-ASN - Coast to Coast Computer Products | 256 | — | 1 |
| AS398805US | SOC-REDUNDANCY - Securitas Security Services USA, Inc | 256 | — | 1 |
| AS399484US | ROCKFORD-UNIVERSITY - Rockford University | 256 | — | 1 |
| AS402491US | AS-CERTUS - Certus | 256 | 4.1K | 2 |
| AS399829US | MHD-COMMUNICATIONS - MHD Communications | 256 | — | 1 |
| AS218652US | NIGHTCOIL-NETWORKS Nightcoil Networks LLC | 256 | 1 | 2 |
| AS400657US | DACOMM - DACOMM Inc. | 256 | — | 1 |
| AS402378US | HCHB-PUBLIC - HomeCare | 256 | — | 1 |
| AS18668US | DESCHUTES-COUNTY-911 - Deschutes 911 | 256 | — | 1 |
| AS11692US | CWH - Carewise Health, Inc. | 256 | — | 1 |
| AS402226US | ONLYSCANS - OnlyScans LLC | 256 | — | 1 |
| AS401815US | SILIS - Silis LLC | 256 | 20 | 6 |
| AS62583US | CTMGMT - CT Management, Inc. | 256 | — | 1 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |