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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 33.5K |
| 65.5K |
| 27 |
| AS398766US | TRICOLINK - TriCoLink, Inc. | 33.3K | 65.5K | 25 |
| AS46964US | BROADINSTITUTE-AS - The Broad Institute, Inc. | 33.3K | — | 5 |
| AS36734US | PAXIO-SFBA - Paxio Inc. | 33.3K | 2.2M | 16 |
| AS62785US | AMAZON-FC - Amazon.com Services, LLC | 33.3K | — | 3 |
| AS14299US | ADP1 - Automatic Data Processing, Inc. | 33.3K | — | 54 |
| AS46233US | EMC-159 - Eisenhower Medical Center | 33.3K | — | 3 |
| AS4208US | THE-ISERV-COMPANY - The Iserv Company, LLC | 33.3K | — | 12 |
| AS10279US | WCCL-AS - West Carolina Communications, LLC | 33.3K | — | 130 |
| AS22458US | NETSOURCE - CONVERGEONE HOLDINGS, INC. | 33.3K | 65.5K | 85 |
| AS11722US | WFC-ASN - Slic Network Solutions, Inc | 33.3K | 131.1K | 26 |
| AS19800US | GCPUD-ORG - Grant County Public Utility District | 33K | — | 4 |
| AS22935US | WAYNE-BOCES - Wayne Finger-Lakes BOCES | 33K | — | 4 |
| AS16600US | UTHEALTHCENTER-TYLER - University of Texas Health Science Center at Tyler | 33K | — | 2 |
| AS14297US | ACI-WORLDWIDE - ACI Worldwide, Inc. | 33K | — | 44 |
| AS30362US | HPT-ASN - Hawaii Pacific Teleport LP | 33K | 65.5K | 21 |
| AS29984US | WILLAMETTE - Willamette University | 33K | — | 2 |
| AS1207US | PSCNET-HS-TEST-AS - Pittsburgh Supercomputing Center | 33K | — | 3 |
| AS19782US | INDIANAGIGAPOP - Indiana University | 33K | 65.5K | 4 |
| AS10399US | AMAP-AUSTIN-TX-WALLER - Waller Creek Communications | 33K | 1 | 3 |
| AS12282US | GMA - Selectronics Corp. | 33K | 131.1K | 7 |
| AS33022US | WELLESLEY-COLLEGE - Wellesley College | 33K | — | 2 |
| AS26923US | OPLIN - Ohio Public Library Information Network (OPLIN) | 33K | — | 2 |
| AS1565US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 33K | — | 2 |
| AS6372US | DCANET - DCANet | 33K | 65.5K | 4 |
| AS19510US | HUM-19510 - HUMANA | 33K | — | 59 |
| AS36658US | ANGELOASPRIME - Angelo State University | 33K | — | 11 |
| AS14550US | MIDDLEBURY-COLLEGE - Middlebury College | 32.8K | — | 1 |
| AS46930US | ASN-DPSD - Denver Public Schools | 32.8K | — | 3 |
| AS6203US | SCIPIO-TECH-6203 - Peace Communications LLC | 32.8K | — | 25 |
| AS1568US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 32.8K | — | 1 |
| AS26258US | BASF-CORP - BASF Corporation | 32.8K | 4.1K | 2 |
| AS39999US | POLK-COUNTY-PUBLIC-SCHOOLS - Polk County Public Schools | 32.8K | — | 1 |
| AS1772US | DNIC-AS-01772 - Navy Network Information Center (NNIC) | 32.8K | — | 1 |
| AS19869US | AECNET - Ovintiv | 32.8K | — | 2 |
| AS11847US | OTT - GoNetSpeed | 32.8K | 73.7K | 28 |
| AS396128US | MHC-NET - Mount Holyoke College | 32.8K | — | 1 |
| AS32733US | UD-RES-AS - University of Dayton | 32.8K | — | 1 |
| AS3410US | CORNELLCOLLEGE - Cornell College | 32.8K | — | 1 |
| AS7250US | SURRY-TELEPHONE-MEMB-CORP - Surry Telephone Membership Corporation | 32.8K | 65.5K | 6 |
| AS11067US | PTSINET - Panhandle Telecommunications Systems, INC. | 32.8K | 65.5K | 22 |
| AS30193US | LAUSD-AS - Los Angeles Unified School District | 32.8K | — | 5 |
| AS1586US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 32.8K | — | 1 |
| AS18497US | UTSI-AS - The University of Tennessee Space Institute | 32.8K | — | 1 |
| AS214413US | SecureLink WYOCORE TECHNOLOGIES LLC | 32.8K | — | 47 |
| AS397879US | LUMINATE-01 - Luminate Fiber LLC | 32.8K | — | 5 |
| AS22854US | CATAWBA-COLLEGE - Catawba College | 32.8K | — | 2 |