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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| ASN-CCILINK - CCiLink LLC |
| 1K |
| — |
| 1 |
| AS40203US | GROWMARK - GROWMARK, Inc. | 1K | — | 1 |
| AS393967US | LYNDEN - Lynden Incorporated | 1K | — | 3 |
| AS21705US | HOUDINI-WCGB - Houdini Inc. | 1K | 1 | 5 |
| AS393321US | AMERIGAS-PROPANE - AmeriGas Propane | 1K | — | 3 |
| AS21842US | PJM - PJM Interconnection LLC. | 1K | — | 3 |
| AS13958US | PZG-FL - THE RIDGEROCK GROUP, LLC | 1K | — | 1 |
| AS13836US | ASN-13836 - Nasdaq, Inc. | 1K | — | 3 |
| AS23176US | BASICRESEARCH - Basic Research, LLC | 1K | — | 1 |
| AS969US | MISAKA3 - Misaka Network, Inc. | 1K | 771 | 10 |
| AS1034US | AMS-BTC-CRAY - HEWLETT PACKARD ENTERPRISE COMPANY | 1K | — | 1 |
| AS46459US | ADSALARM - Alarm Detection Systems, Inc | 1K | — | 3 |
| AS18490US | VTLA - NTT Global Networks Incorporated | 1K | — | 4 |
| AS36562US | PRACTICE-VELOCITY - Practice Velocity, LLC. | 1K | — | 4 |
| AS63209US | KN-CLT-ASN - KODIAK NETWORKS, INC. | 1K | — | 4 |
| AS20306US | ADELPHI - Adelphi University | 1K | 5 | 6 |
| AS23191US | LEMOYNE - Le Moyne College | 1K | — | 4 |
| AS33674US | COGNEX-HQ - Cognex Corporation | 1K | — | 4 |
| AS46798US | SSCSINC - Service Station Computer Systems, Inc. | 1K | — | 2 |
| AS400765US | OMATICON-01 - Omaticon Corporation | 1K | 4.1K | 3 |
| AS30685US | KITS-AKR-OH-DC1 - KIEHL IT SERVICES, LLC | 1K | 4.1K | 4 |
| AS43845US | HI-TECH ConnectTTo World, Inc trading as Hi-Tech Gateway, LLC Armenia branch | 1K | — | 4 |
| AS401244US | MEDINA-COUNTY-01 - Medina County | 1K | — | 2 |
| AS395462US | MILLER-ASN - Miller Telephone Company | 1K | — | 1 |
| AS40540US | MERITUSHEALTH - Meritus Medical Center, Inc. | 1K | — | 3 |
| AS400425US | NRH4301 - CITY OF NORTH RICHLAND HILLS | 1K | — | 4 |
| AS19833US | ABAATLASN1 - Abacus Solutions, LLC | 1K | — | 2 |
| AS14539US | VLABS - Vantage Labs LLC | 1K | — | 4 |
| AS1439US | SBISD - Spring Branch Independent School District | 1K | — | 1 |
| AS393298US | FITELCO-7001 - Fishers Island Telephone Corp. | 1K | 65.5K | 5 |
| AS33186US | DAVITTACLINK - DaVita HealthCare Partners Inc. | 1K | — | 4 |
| AS27386US | PSEGLI - PSEG Long Island LLC | 1K | — | 4 |
| AS23075US | CLIK - Clik Broadband, LLC | 1K | — | 1 |
| AS1823US | HANNAH-MOTOR - Hannah Motor Company | 1K | — | 4 |
| AS397889US | CARIBE-ASN - Caribe Royale | 1K | — | 4 |
| AS1996US | ASN1 - Fairdinkum Consulting, LLC | 1K | — | 4 |
| AS64212US | ADVANTAGE - Advantage Sales & Marketing LLC | 1K | — | 4 |
| AS33621US | CWL-30-IT-ASN - COMMNET WIRELESS LLC | 1K | — | 3 |
| AS44071US | ACS_AS Advanced Communications Solutions LLC | 1K | — | 4 |
| AS54384US | CORE-ASN - CORE Electric Cooperative | 1K | — | 3 |
| AS6596US | ASN-BUNGI - Bungi Communications | 1K | 65.5K | 5 |
| AS19988US | PORTALSYSTEMS - Portal Systems, Inc. | 1K | — | 1 |
| AS23462US | SAUNSTAR-PARKPLAZA - SaunStar Operating Company, LLC | 1K | — | 1 |
| AS200655US | GROUPM-FR-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS3431US | ESNET-AS - ESnet | 1K | — | 4 |
| AS400119US | IRV-NIDR - PIMCO | 1K | — | 4 |
| AS393959US | ABIT - AdvancedBITS, Inc | 1K | — | 3 |