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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| CCHICAGO-STATE-UNIVERSITY - CHICAGO STATE UNIVERSITY |
| 1K |
| — |
| 1 |
| AS393307US | CHSNJ-ASN1 - Cooper University Hospital | 1K | — | 2 |
| AS20325US | PATELCOCU - Patelco Credit Union | 1K | — | 3 |
| AS39957US | PWP-ASN - Perella Weinberg Partners GP LLC | 1K | — | 4 |
| AS33062US | ALEXLEE-INC - ALEX LEE INC | 1K | — | 2 |
| AS40594US | BULLE - Bulle Media Group, Inc. | 1K | — | 4 |
| AS204890US | Pegasystems Pegasystems Inc. | 1K | — | 4 |
| AS397770US | TRINITYLINK - Trinity Link LLC | 1K | — | 4 |
| AS397121US | KAMAN-AS-1 - Kaman Corporation | 1K | — | 4 |
| AS397315US | REGION10-LEAP - Region 10 League for Economic Assistance and Planning, Inc. | 1K | — | 3 |
| AS54671US | WPCASN - WALSWORTH PUBLISHING COMPANY | 1K | — | 4 |
| AS63475US | SPX-CORPORATION - SPX Corporation | 1K | — | 3 |
| AS53426US | DNC - Delaware North Companies | 1K | — | 1 |
| AS31829US | HRVAS - Heruvim, Inc | 1K | — | 3 |
| AS395213US | RAPID7 - Rapid7 Inc | 1K | 1 | 5 |
| AS11521US | MODUSLINK - ModusLink Corporation | 1K | — | 4 |
| AS23427US | GLENBARD-HSD87 - Glenbard HSD #87 | 1K | — | 1 |
| AS398172US | SIRIUSXM-CV - Sirius XM Connected Vehicle Services Inc. | 1K | — | 4 |
| AS13450US | TIS-DC1 - Touchnet Information Systems, Inc. | 1K | — | 4 |
| AS62942US | CARRIERX-MI-01 - FreeConferenceCall.com | 1K | — | 3 |
| AS22567US | CWGS - CWGS ENTERPRISES, LLC | 1K | — | 4 |
| AS399399US | LUXOTTICA-NA - Luxottica of America Inc. | 1K | — | 4 |
| AS22671US | AAAS - American Association for the Advancement of Science (AAAS) | 1K | — | 3 |
| AS33538US | MIMECAST-CA - Mimecast North America Inc | 1K | 2 | 4 |
| AS25714US | KCSR-ASN - The Kansas City Southern Railway Co. | 1K | — | 3 |
| AS395746US | TURN5-DC - Turn 5, Inc. | 1K | 256 | 3 |
| AS13724US | MFS-BOS-PHX - Massachusetts Financial Services | 1K | — | 4 |
| AS23281US | CITY-OF-SACRAMENTO - City of Sacramento | 1K | — | 4 |
| AS206331US | EHOSTINGONLINE E-Hosting Online LLC | 1K | — | 4 |
| AS31951US | NASADSN-AS - NASA Deep Space Network (DSN) | 1K | — | 1 |
| AS400911US | FAO-PHIRE - PhireLink | 1K | — | 1 |
| AS55025US | BLUEZONE-ISP - BLUEZONE INTERNET INC | 1K | — | 4 |
| AS26053US | SYMPHONYRETAILAI - Symphony Retail AI | 1K | — | 1 |
| AS5069US | NAVI-AS-CLEARBLUE - Navisite Opco LLC | 1K | — | 1 |
| AS14424US | ANDERINGERSTA - A.N. Deringer, Inc. | 1K | — | 2 |
| AS53617US | ECSFI - ECS Financial Services, Inc. | 1K | — | 2 |
| AS12158US | ILLUMINA - ILLUMINA, INC. | 1K | — | 3 |
| AS398726US | CABBIT-TECH-01 - Cabbit Technology LLC | 1K | — | 1 |
| AS26869US | ASN-STPSB - ST. TAMMANY PARISH SCHOOL BOARD | 1K | — | 1 |
| AS30525US | GLS-CLT1-01 - Global Linking Solutions | 1K | 257 | 6 |
| AS18976US | UNICOM-SYSTEMS-INC - UNICOM Systems Inc. | 1K | — | 4 |
| AS46471US | MCRESAS01 - Madison Commercial Real Estate Services, LLC | 1K | — | 1 |
| AS6183US | TB-NET - TB Network LLC | 1K | — | 1 |
| AS33586US | RLPOLK-US - R. L. Polk & Company | 1K | — | 4 |
| AS25794US | DPCLAX - Dairyland Power Cooperative | 1K | — | 4 |
| AS395174US | IMDC-APAC - Iron Mountain Data Center | 1K | 4.4K | 12 |
| AS399012US | DART-ASN - Des Moines Regional Transit Authority (DART) | 1K | — | 3 |