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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| — |
| 0 |
| AS401592US | DR - Neal, Gerber & Eisenberg LLP | — | — | 0 |
| AS401607US | NRCC-ASN-01 - Northeast Regional Computational Cooperative | — | — | 0 |
| AS401659US | DX-FIBER - DOXX.NET CORPORATION | — | — | 0 |
| AS401719US | KCBROADBAND-01 - KC Broadband LLC | — | — | 0 |
| AS401774US | QC-BROADBAND - Quick Current-Nebraska, LLC | — | — | 0 |
| AS401937US | UNI-BROADBAND-2 - Uni Broadband LLC | — | — | 0 |
| AS402044US | CLCOM - CloudLink Communications LLC | — | — | 0 |
| AS402088US | PLIMMOBILE - Plim Mobile Telecom LLC | — | — | 0 |
| AS402100US | BGTCO - Burke's Garden Telephone Company | — | — | 0 |
| AS402188US | 46454 - WCS | — | — | 0 |
| AS402191US | 46454 - WCS | — | — | 0 |
| AS402301US | CCJC-01 - City Colleges of Chicago | — | — | 0 |
| AS402371US | ADS-HSVPUBLIC - ADS | — | — | 0 |
| AS402384US | STACKADDRESS - StackAddress | — | — | 0 |
| AS402389US | AMHERST - Amherst | — | — | 0 |
| AS402442US | AS-EMUHSD-01 - El | — | — | 0 |
| AS402490US | PHOENIX-1871 - Phoenix | — | — | 0 |
| AS402519US | OCTET-NETWORKS - OCTET | — | — | 0 |
| AS402550US | IURO-NETWORK - IURO | — | — | 0 |
| AS402596US | SCOA-ASN-01 - SC | — | — | 0 |
| AS402637US | GDUSMS-01 - Giesecke+Devrient | — | — | 0 |
| AS402650US | CBIO-AS1 - Crescent | — | — | 0 |
| AS402689US | SUNOAKI-ACCELERATE-GATEWAY - Sunoaki | — | — | 0 |
| AS402729US | VORSK-EDGE - Vorsk | — | — | 0 |
| AS402750US | ENERGY-NORTHWEST - Energy | — | — | 0 |
| AS402785US | COC-ASN - City | — | — | 0 |
| AS402827US | NATRONA - Natrona | — | — | 0 |
| AS402903US | RHEC-ASN - Roanoke | — | — | 0 |
| AS402936US | MIKULA-SYSTEMS - MIKULA | — | — | 0 |
| AS402946US | SPUZE - SPUZE | — | — | 0 |
| AS403007US | ASLIN-770 - hostivm | — | — | 0 |
| AS403026US | TFS-US-EAST-PGH - Fisher | — | — | 0 |
| AS403038US | CENTRAL-ARKANSAS-WATER-ASN - Utility | — | — | 0 |
| AS403043US | SUNYJCC-AS-01 - Jamestown | — | — | 0 |
| AS403052US | LCD - BOARD | — | — | 0 |
| AS403095US | PAHADI-RESEARCH-01 - Pahadi | — | — | 0 |
| AS403111US | JAGTECH-PRI-WUFMOW - Jagtech | — | — | 0 |
| AS403121US | UDRI-01 - University | — | — | 0 |
| AS403157US | MISCONFIGURED - Misconfigured | — | — | 0 |
| AS403163US | CMU-MIAMI - Carnegie | — | — | 0 |
| AS23US | AS23 - National Aeronautics and Space Administration | — | — | 0 |
| AS40US | MIT-TEST - Massachusetts Institute of Technology | — | — | 0 |
| AS51US | DNIC-AS-00051 - Headquarters, USAISC | — | — | 0 |
| AS120US | MITRE-OMAHA - The MITRE Corporation | — | — | 0 |
| AS136US | AF-ASN-136 - Air Force Systems Networking | — | — | 0 |
| AS171US | SOX-RES - Southern Light Rail, Inc. | — | — | 0 |