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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS46878US | DRW-HOLDINGS - DRW Holdings, LLC | 512 | — | 2 |
| AS23080US | EUROFINS-US - Eurofins NSC, INC. | 512 | — | 1 |
| AS30586US | BOS - Bank Of Springfield | 512 | — | 2 |
| AS400127US | AILIC-01 - MassMutual Ascend Life Insurance Company | 512 | — | 1 |
| AS13565US | ORVIS - THE ORVIS COMPANY, INC. | 512 | — | 2 |
| AS62973US | CATAWBAVALLEYMC - Catawba Valley Medical Center | 512 | — | 2 |
| AS54005US | Z-CLOUD - ZPro Solutions | 512 | — | 2 |
| AS400928US | CAPE-01 - Private Tech Inc. | 512 | — | 2 |
| AS396387US | EZINE-AS - EZINE INDUSTRIES INC | 512 | — | 2 |
| AS40852US | SSFCU-AS-4 - Security Service Federal Credit Union | 512 | — | 2 |
| AS11710US | ABBATECH - ABBA TECHNOLOGIES | 512 | — | 2 |
| AS33203US | 2CRSI - 2CRSI Corporation | 512 | 4.1K | 2 |
| AS62669US | SANS-INSTITUTE - SANS INSTITUTE | 512 | — | 2 |
| AS398004US | TGNA-KSFM - TEGNA Inc. | 512 | — | 2 |
| AS33206US | ESI - Estech Systems, Inc | 512 | — | 2 |
| AS2695US | RJRT01-TOB1 - RJ Reynolds Tobacco Company | 512 | — | 2 |
| AS27600US | VHC-ARLINGTON - Virginia Hospital Center | 512 | — | 2 |
| AS17085US | AS-STOPLLC - SATELLITE TRACKING OF PEOPLE | 512 | — | 1 |
| AS401622US | OMNISSA-WDC - Omnissa, LLC | 512 | 1 | 2 |
| AS62959US | INNOVSYS-1 - Innovative Systems LLC | 512 | — | 2 |
| AS394813US | KRRBI - Karuk Tribe | 512 | — | 1 |
| AS22262US | IDENTRUST-DR-ASN - IdenTrust | 512 | — | 2 |
| AS214300US | Layer4-Group Layer 4 Group LLC | 512 | — | 2 |
| AS29887US | IMNISP - IMNisp | 512 | — | 1 |
| AS32894US | MCWANE - McWane, Inc. | 512 | — | 2 |
| AS398011US | LYNDENDOOR - Lynden Door, Inc. | 512 | — | 2 |
| AS393941US | PRIMARY-AS393941 - Flying Man Studio, LLC. | 512 | 25 | 12 |
| AS40686US | HBK-ROSEWOOD - HBK Services LLC | 512 | — | 2 |
| AS393613US | VACU-ASN-1 - Virginia Credit Union, Inc. | 512 | — | 2 |
| AS29726US | VONAGE-02 - Vonage Holdings, Inc. | 512 | — | 2 |
| AS22066US | CITY-OF-EAU-CLAIRE - City of Eau Claire | 512 | — | 1 |
| AS397418US | SYNAMEDIA - Synamedia | 512 | 4.1K | 3 |
| AS32117US | BERKSHIRE-HEALTH-SYSTEMS - Berkshire Health Systems | 512 | — | 2 |
| AS14045US | CHANGEHEALTHCARE - UnitedHealth Group Incorporated | 512 | — | 2 |
| AS395072US | ODBM-3000 - Our Daily Bread Ministries | 512 | — | 2 |
| AS35008US | KERFUFFLE - Kerfuffle, LLC | 512 | 257 | 4 |
| AS20416US | PRYSMIAN-01 - Prysmian Cables and Systems USA LLC | 512 | — | 1 |
| AS401914US | INTERCODING-NET - INTERCODING | 512 | — | 2 |
| AS399717US | NU - Newman University, Inc. | 512 | — | 2 |
| AS26984US | UTL-17-26984 - Universal TelCom LLC | 512 | — | 2 |
| AS14459US | ENTERTAINMENTPARTNERS-AS-A - Entertainment Partners | 512 | — | 2 |
| AS394801US | SFA-ARDC - Stephen F. Austin State University | 512 | — | 1 |
| AS396358US | BUBGP1 - Bellarmine University | 512 | — | 2 |
| AS27434US | DG-FASTCHANNEL - DG | 512 | — | 2 |
| AS394158US | ONCU-M - ONE NEVADA CREDIT UNION | 512 | — | 2 |
| AS19395US | BCCC-COLLEGE-I2 - Bucks County Community College | 512 | — | 2 |