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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 | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| — |
| — |
| 0 |
| AS32939US | ATLANTICBB-MIDDLETOWN - Breezeline | — | — | 0 |
| AS32947US | WEST-B2B-DEN01 - West Technology Group, LLC | — | — | 0 |
| AS32989US | BYTESIZEDNETWORKS - QuickCentralNetworks | — | — | 0 |
| AS33066US | LSG-01 - Leviathan Security Group, Inc. | — | — | 0 |
| AS33075US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33077US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33081US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33108US | SEATTLEIX - Seattle Internet Exchange | — | — | 0 |
| AS33114US | CO-OP - Cu Cooperative Systems, Inc. | — | — | 0 |
| AS33329US | BUBBL-TEK - Bubbl-Tek LLC | — | — | 0 |
| AS33342US | QUALCOMM-AUSTIN - Qualcomm, Inc. | — | — | 0 |
| AS33518US | INGENIX - Ingenix, Inc. | — | — | 0 |
| AS33618US | SERVLET-LLC-AS - Logical Solutions Inc | — | — | 0 |
| AS33689US | ASTILA - Astila Corporation | — | — | 0 |
| AS33746US | TTEK-AS - TETRA TECH, INC. | — | — | 0 |
| AS33752US | SIEMENS-DISW-MOB-NU-ALM - Siemens Industry Software Inc. | — | — | 0 |
| AS33758US | GOTRICOUNTY - TriCounty Communications, Inc. | — | — | 0 |
| AS35896US | OPTUMINSIGHT-FRANKLIN - UnitedHealth Group Incorporated | — | — | 0 |
| AS35905US | TELX-NYC - Telx | — | — | 0 |
| AS36113US | UTL-42-36113 - Netopia | — | — | 0 |
| AS36230US | ALERTLOGIC - Alert Logic, Inc. | — | — | 0 |
| AS36250US | MARKETTRACK - Market Track LLC | — | — | 0 |
| AS36251US | SOMOS-CA - Somos, Inc. | — | — | 0 |
| AS36310US | LAKESHORE-VENTURES-ELK-GROVE - LakeShore Capital LLC | — | — | 0 |
| AS36552US | WHITEHAT - WhiteHat Inc. | — | — | 0 |
| AS36559US | DELUXE-NY - Deluxe Corporation | — | — | 0 |
| AS36630US | YGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36660US | SAMUEL-MERRITT-UNIVERSITY - Samuel Merritt College | — | — | 0 |
| AS36725US | COLLECTORS - Collectors Universe, Inc. | — | — | 0 |
| AS36778US | CHARTER-36778-NA - Charter Communications LLC | — | — | 0 |
| AS39976US | XETEX - Xetex Business Systems, Inc. | — | — | 0 |
| AS39997US | GLIC - Guardian Life Insurance Company Of America | — | — | 0 |
| AS40196US | WILLISNORTHAMERICA - Willis North America Inc | — | — | 0 |
| AS40219US | CHARTER-40219-NA - Charter Communications LLC | — | — | 0 |
| AS40297US | CALSTAR-MCC - Air Medical Group Holdings | — | — | 0 |
| AS40315US | VIASAT-3 - ViaSat,Inc. | — | — | 0 |
| AS40349US | ISAGENIX - Isagenix International LLC | — | — | 0 |
| AS40366US | CDNETWORKSUS-01 - CDNetworks Inc. | — | — | 0 |
| AS40456US | CME - Chicago Mercantile Exchange | — | — | 0 |
| AS40485US | SSB - SANDY SPRING BANK | — | — | 0 |
| AS40514US | LABCORP-DIAGNOSTICS-PAML - Pathology Associates Medical Laboratories | — | — | 0 |
| AS40516US | SUCCESSFACTORS - Successfactors, Inc. | — | — | 0 |
| AS40579US | TWRS-DAL - Towerstream I, Inc. | — | — | 0 |
| AS40582US | VUDU-ASN-2 - VUDU, Inc. | — | — | 0 |
| AS40679US | ATO-DAL01 - ATMOS ENERGY CORP | — | — | 0 |
| AS40681US | PHS-MT - Providence Health & Services | — | — | 0 |