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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| RCS-CO-LO-BGP - Resurgent Capital Services LP |
| 256 |
| — |
| 1 |
| AS395202US | BRADFORD-COUNTY-FLORIDA - Bradford County Board of County Commissioners | 256 | — | 1 |
| AS16315US | MULTITEL - MultiTEL LLC | 256 | — | 1 |
| AS25732US | TOTALCARDINC - Total Card, Inc. | 256 | — | 1 |
| AS17357US | AS-DCI-31 - Development Corporation for Israel | 256 | — | 1 |
| AS53978US | ACUMED - Acumed, LLC | 256 | — | 1 |
| AS46374US | ICNET - Ideal Concepts, Inc. | 256 | — | 1 |
| AS53341US | PBA4103-AS - Peoples Bank of Alabama | 256 | — | 1 |
| AS30618US | LEEUNIV - Lee University | 256 | — | 1 |
| AS1027US | TNTWIFI-MO-01 - TNT WiFi LLC | 256 | — | 1 |
| AS36260US | MISAKA-BIZNET-AS - Misaka Network, Inc. | 256 | — | 1 |
| AS400966US | CLOUDQUANT-01 - CloudQuant, LLC | 256 | — | 1 |
| AS204807US | Lite-Info-ISP Lite Info LLC | 256 | — | 1 |
| AS16515US | ALTAVISTA - Yahoo Holdings Inc. | 256 | — | 1 |
| AS19974US | SKYPACKET-TEKRIDGE - SkyPacket | 256 | — | 1 |
| AS18977US | WIKTEL-VOICE - Wikstrom Telephone Company, Incorporated | 256 | — | 1 |
| AS29707US | MATCU - Orion Federal Credit Union | 256 | — | 1 |
| AS397801US | ENT-KM2 - KM2 Solutions, LLC | 256 | — | 1 |
| AS36385US | GOOGLE-IT - Google LLC | 256 | 1 | 2 |
| AS399099US | PCPS-ASN - petersburg city public schools | 256 | — | 1 |
| AS395392US | FASCETDR - Fascet LLC | 256 | — | 1 |
| AS395276US | CSD-ASN-1 - Cabot Public Schools | 256 | — | 1 |
| AS11793US | ATI-LAS-ASN1 - Aristocrat Technologies, Inc. | 256 | — | 1 |
| AS33128US | APOG-TOW - Apogee Telecom Inc. | 256 | — | 1 |
| AS19313US | DATACOR - Datacor, Inc. | 256 | — | 1 |
| AS22776US | CONRES01730 - Continental Resources | 256 | — | 1 |
| AS400233US | COSA-CITYHALL - City of San Angelo | 256 | — | 1 |
| AS40330US | LSNB - Lone Star National Bank | 256 | — | 1 |
| AS54130US | AFBA-AS - AFBA | 256 | — | 1 |
| AS401662US | HEIMDALLTEK - HeimdallTek | 256 | 1 | 2 |
| AS54350US | GALLATINSTEEL - Gallatin Steel Company | 256 | — | 1 |
| AS398554US | SKYWORKSINC - Skyworks Solutions, Inc | 256 | — | 1 |
| AS396482US | GRAYTELEVISION - Gray Media, Inc. | 256 | — | 1 |
| AS6651US | GEMINI-EXCHANGE - Gemini | 256 | — | 1 |
| AS27236US | CLEVELANDHEIGHTSUNIVERSITYHEIGHTSCITYSCHOOLS - Cleveland Heights University Heights City Schools | 256 | — | 1 |
| AS23398US | DZSI - Dasan Zhone Solutions, Inc. | 256 | — | 1 |
| AS40836US | VECTORSEC - VECTOR SECURITY INC | 256 | — | 1 |
| AS401073US | A10NETWORKS-INC - A10 Networks Inc. | 256 | — | 1 |
| AS26069US | ALVERNIAUNIVERSITY-AS01 - Alvernia University | 256 | — | 1 |
| AS46716US | CROOK-COUNTY-OREGON - Crook County Oregon | 256 | — | 1 |
| AS401031US | ASN-FAULKNER-UNIVERSITY - Faulkner University | 256 | 256 | 2 |
| AS398310US | UPNETWI - upnetwi, llc | 256 | — | 1 |
| AS393633US | PRMC-ASN1 - Pratt Regional Medical Center | 256 | — | 1 |
| AS30183US | HRCAC-1 - Hard Rock Hotel and Casino Atlantic City | 256 | — | 1 |
| AS47041US | ASN-STBER-3 - ST BERNARDS HEALTHCARE | 256 | — | 1 |
| AS40372US | KAPLAN-LACROSSE - Schweser | 256 | — | 1 |
| AS17092US | HHS-IPASN - Hendrick Medical Center | 256 | — | 1 |