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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| REDDYICE - Reddy Ice Holdings, Inc |
| 256 |
| — |
| 1 |
| AS54332US | CITYOFBOISE - City of Boise | 256 | — | 1 |
| AS18453US | WELLBORN-CABINET - Wellborn Cabinet Inc. | 256 | — | 1 |
| AS33521US | MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools | 256 | — | 1 |
| AS397426US | WILSON-HEALTH - Wilson Health | 256 | — | 1 |
| AS14597US | TRANS-SYSTEM - Trans-System inc. | 256 | — | 1 |
| AS398390US | AX-S-ANYWHERE - Ax-S-Anywhere | 256 | — | 1 |
| AS10920US | JOHN-PAUL-CATHOLIC-UNIVERSITY - John Paul the Great Catholic University | 256 | — | 1 |
| AS393615US | FASCET - Fascet LLC | 256 | — | 1 |
| AS7380US | AVANTCREDIT - Avant, Inc. | 256 | — | 1 |
| AS40497US | BETHEL-ASN1 - Bethel University | 256 | — | 1 |
| AS16982US | CANONMI-ASN-MN - Canon Medical Informatics, Inc. | 256 | — | 1 |
| AS400906US | AS-MINO - Mino Network LLC | 256 | — | 1 |
| AS394999US | K0MWB - K0MWB | 256 | 17 | 3 |
| AS26319US | CHFCU - CoastHills Federal Credit Union | 256 | — | 1 |
| AS11891US | COSL-ASN-01 - City of San Leandro | 256 | — | 1 |
| AS32550US | EQUINIX-EC-SE - Equinix, Inc. | 256 | 1 | 2 |
| AS399373US | GIGCASTAUS-01 - Gigcasters LLC | 256 | — | 1 |
| AS32294US | CITY-OF-CHAMPAIGN-IL - City of Champaign, Illinois | 256 | — | 1 |
| AS63273US | AMERISAFE-AS - Amerisafe Inc. | 256 | — | 1 |
| AS30338US | CFI-JOPLIN - CFI | 256 | — | 1 |
| AS10390US | TELECHECK - Fiserv Solutions, LLC | 256 | 1 | 2 |
| AS401061US | RGI-192-241-34-0-1 - Rogers Group, Inc. | 256 | — | 1 |
| AS397089US | USORD - EXPEDIA, INC | 256 | — | 1 |
| AS53677US | BOLTHOUSE-FARMS - WM. BOLTHOUSE FARMS, INC. | 256 | — | 1 |
| AS31904US | NCWCD-80513 - Northern Water | 256 | — | 1 |
| AS14067US | FOUROVER-GLN-CA - 4 Over, Inc. | 256 | — | 1 |
| AS397402US | AH-PEER1 - Atrius Health, Inc. | 256 | — | 1 |
| AS393305US | G2BRS-NET - G2 | 256 | — | 1 |
| AS401228US | KOINIJ-1 - Koinij LLC | 256 | — | 1 |
| AS401930US | JFK NTO - New Terminal One | 256 | — | 1 |
| AS46127US | AS-DRSTECH - Leonardo DRS, Inc. | 256 | — | 1 |
| AS5755US | SIAM-ASN-01 - SIAM | 256 | 1 | 2 |
| AS396333US | CYWEST-COMMUNICATIONS - Cywest Communications, Inc. | 256 | — | 1 |
| AS395952US | MARKETLEADER - Constellation Web Solutions, Inc. | 256 | — | 1 |
| AS402937US | SIDEGUIDE - Sideguide | 256 | — | 1 |
| AS214022US | VIRTNET Joseph Rawlings trading as Virtnet.bond | 256 | 263 | 6 |
| AS399992US | KJTDNET - KJTDNET | 256 | 256 | 2 |
| AS11775US | CLOUGIX-11775 - Semina Tempus, LLC | 256 | — | 1 |
| AS54752US | EQSERVERS-US302 - Eqservers LLC | 256 | — | 1 |
| AS54722US | BMOS - Museum of Science | 256 | — | 1 |
| AS46448US | TMC-104 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS30669US | CAMDEN-NATIONAL - Camden National Bank | 256 | — | 1 |
| AS36385US | GOOGLE-IT - Google LLC | 256 | 1 | 2 |
| AS25604US | GULF-SOUTH-PIPELINE - GULF SOUTH PIPELINE CO LP | 256 | — | 1 |
| AS1652US | MIDFLORIDA-AS - MIDFLORIDA Federal Credit Union | 256 | — | 1 |
| AS30192US | HUME - Hume Lake Christian Camps | 256 | — | 1 |