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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 | 21,109 |
| 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 | 4,430 |
| 256 |
| — |
| 1 |
| AS401728US | FCFCU - First Commonwealth Federal Credit Union | 256 | 1 | 2 |
| AS139706US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS23401US | US-TOOL-GRINDING - US Tool Group | 256 | — | 1 |
| AS40684US | STCLAIRCCC-AS - St. Clair County Community College | 256 | — | 1 |
| AS32196US | JLEMDR - Jacobs Levy Equity Management, Inc. | 256 | — | 1 |
| AS398078US | ISPTEK - ISPTek | 256 | 256 | 2 |
| AS53978US | ACUMED - Acumed, LLC | 256 | — | 1 |
| AS12159US | SECURITIESAMERICA - Securities America Inc. | 256 | 1 | 2 |
| AS63380US | TRILLIUM-STAFFING - Trillium Staffing | 256 | — | 1 |
| AS398131US | LUCASFILM-LA - Lucasfilm Ltd. LLC | 256 | — | 1 |
| AS22127US | HONDAAIRCRAFT - Honda Aircraft Company LLC | 256 | — | 1 |
| AS19617US | SAA - SOUTHERN AUTO AUCTION | 256 | — | 1 |
| AS394603US | AS394603 - Panasonic Avionics Corporation | 256 | — | 1 |
| AS18685US | PLANNET-OC-01 - PlanNet LLC | 256 | 1 | 2 |
| AS11852US | WHCC - White House Custom Colour, Inc | 256 | — | 1 |
| AS399751US | CNTYRCKHM - County of Rockingham | 256 | — | 1 |
| AS40330US | LSNB - Lone Star National Bank | 256 | — | 1 |
| AS400364US | DSLD-NET01 - DSLD HOMES, LLC | 256 | — | 1 |
| AS33521US | MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools | 256 | — | 1 |
| AS14344US | AHEAD - AHEAD | 256 | — | 1 |
| AS461US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS32416US | WHARTON-COUNTY-JUNIOR-COLLEGE - Wharton County Junior College | 256 | — | 1 |
| AS398429US | GERBERS-POULTRY - Gerber Poultry, Inc. | 256 | — | 1 |
| AS394216US | PUEBLOCOUNTY - Pueblo County Government | 256 | — | 1 |
| AS395770US | TEXARKANACOLLEGE - Texarkana College | 256 | 16 | 2 |
| AS25738US | HERZING-UNIVERSITY - Herzing INC | 256 | — | 1 |
| AS398390US | AX-S-ANYWHERE - Ax-S-Anywhere | 256 | — | 1 |
| AS394782US | SEAPORT - Commonwealth Flats Development Hotel Corp. | 256 | — | 1 |
| AS399120US | DDAF-LOU - Dean Dorton | 256 | 1 | 2 |
| AS394669US | COTA-AUSTTX - Circuit of The Americas LLC | 256 | — | 1 |
| AS22862US | CLINTON-CITY-SCHOOLS - Clinton City Schools | 256 | — | 1 |
| AS394335US | ASN-SEL-294 - Surge Enterprises, LLC | 256 | 256 | 2 |
| AS11370US | UW-ASN-01 - UltraWISP, LLC | 256 | — | 1 |
| AS394368US | CYTIZEN-NET - CYTIZEN NETWORKS LLC | 256 | 256 | 2 |
| AS400311US | IRN - EDISON PROPERTIES, LLC | 256 | — | 1 |
| AS396494US | AS-CITY-OF-ROCKVILLE-MARYLAND - Mayor and Council of Rockville | 256 | — | 1 |
| AS398319US | ANMISA-LLC - Aaron N Martin ISA LLC | 256 | 256 | 2 |
| AS23109US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS54898US | CITY-OF-SAN-BUENAVENTURA - City of San Buenaventura | 256 | — | 1 |
| AS398072US | REGION7-ESC-DMAC - Region VII Education Service Center | 256 | — | 1 |
| AS62901US | MOELIS-CO - Moelis & Company Holdings LP | 256 | — | 1 |
| AS400358US | TOTALDATALOSS - TOTALDATALOSS LLC | 256 | 256 | 2 |
| AS63282US | YVFWC - Yakima Valley Farm Workers Clinic | 256 | — | 1 |
| AS29707US | MATCU - Orion Federal Credit Union | 256 | — | 1 |
| AS25643US | NEWERA-01 - New Era Technology, Inc | 256 | — | 1 |
| AS394118US | VSSMEDICAL-CT-01 - Sigmund Software, LLC | 256 | 1 | 2 |