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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 4,342 |
| WNMU-ASN - Western New Mexico University |
| 768 |
| — |
| 3 |
| AS36393US | PFELJ - Pfizer Inc. | 768 | — | 2 |
| AS32850US | CLARITEV-VA - Claritev Corporation | 768 | — | 3 |
| AS36119US | OSISOFTLLC - OSIsoft, LLC | 768 | — | 2 |
| AS55251US | TAXHAWK-AS - TaxHawk, Inc. | 768 | — | 3 |
| AS26160US | LCEC-BGPNET-YHWH - LCEC | 768 | — | 3 |
| AS401846US | SUZKO - SUZKO LLC | 768 | — | 3 |
| AS46153US | LOUISVILLE-JEFFERSON-COUNTY-METRO-GOVERNMENT - Louisville Jefferson County Metro Government | 768 | — | 2 |
| AS399953US | METHOWNET-01 - Okanogan County Electric Cooperative, Inc. | 768 | — | 3 |
| AS398092US | GRAND-TRAVERSE-BAND - Grand Traverse Band of Ottawa and Chippewa Indians | 768 | — | 2 |
| AS19214US | CENTAURI-COMMUNICATIONS-COM - Centauri Communications | 768 | 65.5K | 3 |
| AS64296US | ONRADINC - Onrad, Inc. | 768 | — | 2 |
| AS40731US | LATIN-IP - Latin IP LLC | 768 | — | 3 |
| AS397782US | HY-VEE-ASN-02 - Hy-Vee, Inc | 768 | — | 2 |
| AS54081US | GJCITY-01 - City of Grand Junction | 768 | — | 3 |
| AS4188US | GILBARCO-AS - Gilbarco, Inc. | 768 | — | 3 |
| AS16993US | ASN-CFI - Cumberland Farms, Inc. | 768 | — | 3 |
| AS32130US | BRIGHT-HORIZONS - Bright Horizons | 768 | — | 3 |
| AS397809US | SDC-ASHBURN-EQX - Huron Consulting Group, Inc. | 768 | — | 3 |
| AS33645US | ODYSSEYRE - ODYSSEY RE HOLDINGS CORP | 768 | — | 3 |
| AS3557US | ISC-AS - Internet Systems Consortium, Inc. | 768 | 3 | 4 |
| AS54370US | SKYWEST - SKYWEST AIRLINES, INC. | 768 | — | 3 |
| AS401903US | CRIMSON-PACIFIC-NETWORKS - Crimson Pacific Networks, LLC | 768 | 21 | 9 |
| AS23284US | COMPL-AS - Complete Genomics Inc. | 768 | — | 3 |
| AS29912US | CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation | 768 | — | 3 |
| AS400289US | AS-MFWIRELESS - MFWireless | 768 | 65.5K | 4 |
| AS401048US | SUPREME-SERVERS - Supreme Servers | 768 | 16 | 3 |
| AS17145US | TEAJAX - THE ENERGY AUTHORITY | 768 | — | 2 |
| AS401572US | ALTERAHEALTH-ASN01 - Altera Digital Health Inc. | 768 | — | 3 |
| AS31853US | EMS-AS - Express Messenger Systems, Inc. | 768 | — | 3 |
| AS27548US | USAN-AS-A - United States Advanced Network Inc. | 768 | — | 3 |
| AS63397US | WILLETT - Willett Advisors LLC | 768 | — | 3 |
| AS25907US | BRINKER-INT - BRINKER INTERNATIONAL INC | 768 | — | 3 |
| AS40892US | EFTSOURCE2008 - EFT Source, Inc. | 768 | — | 3 |
| AS393471US | FOS-HOSTING - FOS Hosting, LLC | 768 | — | 3 |
| AS6924US | STARTRIB - Star Tribune | 768 | — | 3 |
| AS32374US | NUCLEARFALLOUT-LAX - Nuclearfallout Enterprises, Inc. | 768 | 8.2K | 5 |
| AS394448US | DXFEED - Devexperts Inc | 768 | — | 3 |
| AS23067US | AS23067 - Orange County, Florida | 768 | — | 3 |
| AS395067US | BRF - B. Riley Financial, Inc. | 768 | — | 3 |
| AS53840US | AS-CCI1 - CENTRAL COAST INTERNET | 768 | — | 3 |
| AS36566US | WBAL-TV - Hearst-Argyle Television, Inc. | 768 | — | 3 |
| AS1401US | DBI-CMH1 - DSW Information Technology LLC. | 768 | — | 2 |
| AS17243US | BYTENODE-AS - Byte Node LLC | 768 | 1 | 4 |
| AS397008US | WBC-ASN-01 - Weigel Broadcasting Co | 768 | — | 3 |
| AS60527US | XSOLLA-AS Xsolla (USA), Inc | 768 | — | 3 |
| AS1422US | MEDIA6-ASN - Media6degrees | 768 | — | 3 |