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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS30019US | PSBC - BLOODWORKS NORTHWEST | 256 | — | 1 |
| AS401340US | HCIFIRSTASNAME - Hussey Communications Inc | 256 | — | 1 |
| AS43074US | MHS-331-43074 - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS402555US | RIKKIA-NETWORK-01 - Rikkia | 256 | 1 | 2 |
| AS46808US | PSA-ASN-01 - Pueblo of Santa Ana | 256 | — | 1 |
| AS934US | BSTI - Big Sky Tech & Internet, Inc. | 256 | — | 1 |
| AS16618US | FUC-AS-16618 - Finastra USA Corporation | 256 | — | 1 |
| AS46287US | SML-ASN - Stonehenge Management, LLC | 256 | — | 1 |
| AS402540US | MJWINNOVATIONS - MJW | 256 | 2 | 3 |
| AS393382US | KERNHEALTHSYSTEMS - Kern Family Health Care | 256 | — | 1 |
| AS19408US | WDS-DENTAL - Western Dental | 256 | — | 1 |
| AS18512US | YBP-AS - Yankee Book Peddler | 256 | — | 1 |
| AS32657US | TENNESSEE-AQUARIUM - Tennessee Aquarium | 256 | — | 1 |
| AS400188US | UBSARENA - New York Arena Partners, LLC | 256 | — | 1 |
| AS17333US | COLLEGE-OF-SAINT-MARY - College of Saint Mary | 256 | — | 1 |
| AS399634US | CC-VISA-01 - Cardinal Commerce Corporation | 256 | — | 1 |
| AS15302US | TRIALCARD-01 - TrialCard Incorporated | 256 | — | 1 |
| AS401620US | HOLOCENE ADVISORS LP - Holocene Advisors, LP | 256 | — | 1 |
| AS395814US | WABASHVALLEYPOWERASSOC - Wabash Valley Power Association Inc. | 256 | — | 1 |
| AS1315US | IPFS - Imperial PFS | 256 | — | 1 |
| AS62867US | ALDINEISD-ASN01 - Aldine Independent School District | 256 | — | 1 |
| AS401522US | CBCTECH-AMERICAS - CBCCOM AMERICAS INC. | 256 | — | 1 |
| AS394272US | SP-ASN01 - Servpro Industries, Inc. | 256 | — | 1 |
| AS394287US | FOURPOINT - FourPoint Energy, LLC | 256 | — | 1 |
| AS63171US | PASADENA-ISD-AS1 - Pasadena Independent School District | 256 | — | 1 |
| AS394263US | RC-DC - Alliance Collection Agencies, INC | 256 | — | 1 |
| AS46492US | SWMICH-EDU-AS-01 - Southwestern Michigan College | 256 | — | 1 |
| AS55278US | CIG-ASN - California Capital Insurance Company | 256 | — | 1 |
| AS32210US | NTE-64-WHQASNUM - NORTHERN TOOL & EQUIPMENT COMPANY, INC. | 256 | — | 1 |
| AS400161US | HAWAIIRESEARCH - Academy for Internet Research Limited Liability Company | 256 | — | 1 |
| AS46775US | DCI - Drummond Company, Inc. | 256 | — | 1 |
| AS395159US | BOULDER-COMMUNITY-HEALTH - Boulder Community Hospital | 256 | — | 1 |
| AS21903US | ARNHEM-01 - Arnhem Networks LLC | 256 | 51 | 9 |
| AS63189US | ANDESASERVICESINC - Andesa Services, Inc | 256 | — | 1 |
| AS400265US | DWS-AUL-INT - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS393379US | SEI-HOUSTON - Seismic Exchange, Inc. | 256 | — | 1 |
| AS63424US | APM-442 - ADVANTAGE DENTAL CLINICS | 256 | — | 1 |
| AS210347US | ARROWBLACKLLC ARROWBLACK LLC | 256 | 2 | 3 |
| AS54662US | ATFS - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 256 | — | 1 |
| AS393572US | FINGERLAKESNETWORK - FingerLakesNetwork LLC | 256 | — | 1 |
| AS399816US | LAER-AS-ATL1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS397261US | ENDELL-ST - H CLUB LOS ANGELES | 256 | — | 1 |
| AS14501US | ENTERPRISECOMMUNITY - Enterprise Business Partners, LLC | 256 | — | 1 |
| AS30495US | MTS-LLC - MTS | 256 | — | 1 |
| AS140890US | MCDCORP-GLOBAL-AS-AP - McDonald's Corporation | 256 | — | 1 |
| AS4923US | AS-SCF-DC - SCF | 256 | — | 1 |