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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| — |
| — |
| 0 |
| AS401529US | SANDCLOCK - SANDCLOCK LLC | — | — | 0 |
| AS401591US | BLUE - IPCrash LLC | — | — | 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 |
| 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 |
| AS402876US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402928US | FULLCONTROL-NET-01 - FullControl | — | — | 0 |
| AS402954US | NSI-WC-01 - Datatility, | — | — | 0 |
| AS402971US | CA-POP - NM | — | — | 0 |
| AS402991US | SN75-US - SiteTurn | — | — | 0 |
| AS402994US | SAKERLINK - SakerLink, | — | — | 0 |
| AS402998US | PSL - New | — | — | 0 |
| AS403000US | WARSAW-COMMUNITY-SCHOOLS - Warsaw | — | — | 0 |
| AS403004US | JP-US-IPLC - AirRabbit | — | — | 0 |
| AS403006US | ADVANCED-DATUM - Advanced | — | — | 0 |
| AS403037US | MIKROHELP - MIKROHELP | — | — | 0 |
| AS403039US | KICYA - Kicya | — | — | 0 |
| AS403074US | ELIORNA - Elior, | — | — | 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 |