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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 | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS400785US | MALL OF AMERICA - MALL OF AMERICA | 256 | — | 1 |
| AS395637US | RFKRACING - Roush Fenway Keselowski Racing, LLC | 256 | — | 1 |
| AS396837US | SEAA18 - North Carolina State Education Assistance Authority | 256 | — | 1 |
| AS22574US | COCONET - CocoNet Corporation | 256 | — | 1 |
| AS399627US | CITY-OF-MOUNTAIN-VIEW - City of Mountain View | 256 | — | 1 |
| AS399365US | KIRKLAND-ELLIS-DA - Kirkland & Ellis LLP | 256 | — | 1 |
| AS33245US | JABIL-AS-SINU-PH - Jabil | 256 | — | 1 |
| AS18748US | DAL-B2BVPN - Delta Air Lines | 256 | — | 1 |
| AS54544US | WM-549-01 - Woodward McCoach Inc. | 256 | 1 | 2 |
| AS399823US | GGSL - GOIP GLOBALNET SOLUTIONS LLC | 256 | — | 1 |
| AS398114US | MOSS-ADAMS-ASN01 - MOSS ADAMS, LLP | 256 | — | 1 |
| AS398832US | STRAYANET-01 - Strayanet LLC. | 256 | — | 1 |
| AS26647US | MSS1 - Movers Specialty Service | 256 | — | 1 |
| AS394050US | KIRBTECH - Kirbtech LLC | 256 | — | 1 |
| AS397638US | MLHS - Mille Lacs Health System | 256 | — | 1 |
| AS33462US | JANUS-LEXINGTON-MA - JANUS Research Group | 256 | — | 1 |
| AS396036US | CPI-ASN - CPI | 256 | — | 1 |
| AS23363US | CITYOFLEWISVILLE - City of Lewisville | 256 | — | 1 |
| AS401785US | DATA -SAFE-SERVICES - Data Safe Services LLC | 256 | — | 1 |
| AS393690US | AS-MARITIME - Massachusetts Maritime Academy | 256 | — | 1 |
| AS8021US | PCNET - Paradigm Communications Inc. | 256 | — | 1 |
| AS14756US | LYNX - LYNX COMMUNICATIONS | 256 | 4.1K | 2 |
| AS47393US | GROUPM WPP Group USA, Inc. | 256 | — | 1 |
| AS394372US | APOG-UNION-MC - Apogee Telecom Inc. | 256 | — | 1 |
| AS32992US | ITECHTOOL-ASN-SF - ITechTool Incorporated | 256 | — | 1 |
| AS22741US | LAURENS-ELECTRIC - Laurens Electric Cooperative, Inc | 256 | — | 1 |
| AS398921US | OVERDRIVE-ASN-01 - OverDrive, Inc. | 256 | — | 1 |
| AS56640US | BAIN-AND-COMPANY-INC-UNITED-KINGDOM BAIN AND COMPANY INC UNITED KINGDOM | 256 | — | 1 |
| AS398567US | LIGHTING-READY-HOSTING-LLC - Lightning Ready Hosting, LLC | 256 | — | 1 |
| AS393520US | FTSC-HQ - Fulcrum Technology Solutions, LLC | 256 | — | 1 |
| AS394878US | OLDREPUBLICTITLEASOP2 - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 256 | — | 1 |
| AS14119US | PNG-WYO - PENN NATIONAL GAMING | 256 | — | 1 |
| AS397349US | MUTABLE - Mutable | 256 | — | 1 |
| AS214806US | FEMBOY Femboy Cyber Networks LLC | 256 | 1 | 2 |
| AS17355US | WSD - Wayzata School District, ISD #284 | 256 | — | 1 |
| AS1099US | WIFIBER-SPO-01 - WIFIBER | 256 | — | 1 |
| AS398403US | SSI - Alarm Detection Systems, Inc | 256 | — | 1 |
| AS22815US | KELLY-INSURANCE-GROUP - Kelly and Associates Insurance Group | 256 | — | 1 |
| AS10248US | BLUE-RIDGE-BANKSHARES-ASN - Blue Ridge Bankshares, Inc. | 256 | — | 1 |
| AS26093US | HAR - Houston Association of Realtors | 256 | — | 1 |
| AS397462US | CSPI-MSP-1 - CSPi Technology Solutions | 256 | — | 1 |
| AS395396US | AAH-OAHU - Alert Alarm Hawaii | 256 | — | 1 |
| AS398314US | ELDORADO-205 - Mphasis Eldorado | 256 | — | 1 |
| AS11695US | THESTREET-DOT-COM - TheStreet.Com | 256 | — | 1 |
| AS29961US | MADISON-COUNTY-COMMISSION-AL - Madison County Commission | 256 | — | 1 |
| AS27231US | CARILION-HEALTH-SYSTEM - CARILION HEALTH SYSTEM | 256 | — | 1 |