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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS40547US | AERAENERGYLLC - Aera Energy LLC | 256 | — | 1 |
| AS402585US | DIGITAINO-LLC - Digitaino | 256 | 2 | 3 |
| AS395428US | ELMHURST-AS - Elmhurst University | 256 | — | 1 |
| AS16872US | PIKE-EXTERNAL-BGP-RAL - Pike Enterprises, LLC | 256 | — | 1 |
| AS54332US | CITYOFBOISE - City of Boise | 256 | — | 1 |
| AS47097US | AMERIPHARM-INC-DBA-MEDVANTX-PHARMACY-SERVICES - AmeriPharm Inc. | 256 | — | 1 |
| AS21978US | LANAIR-LGCLOUD - LANAIR Group, LLC | 256 | — | 1 |
| AS394407US | CCCC-NC - Central Carolina Community College | 256 | — | 1 |
| AS27596US | REDWIRE - VoloNet Technologies, Inc | 256 | — | 1 |
| AS399108US | CENHUD-01 - Central Hudson Gas & Electric Corporation | 256 | — | 1 |
| AS394999US | K0MWB - K0MWB | 256 | 17 | 3 |
| AS398039US | CENTRIS-ASN-01 - Centris Federal Credit Union | 256 | — | 1 |
| AS32434US | IMP-NET - Imperial Network | 256 | 256 | 2 |
| AS63291US | ADDUS - Addus Healthcare, Inc | 256 | — | 1 |
| AS53978US | ACUMED - Acumed, LLC | 256 | — | 1 |
| AS32985US | FSS-COMCAST-ASN01 - Follett Content | 256 | — | 1 |
| AS20317US | ABN-AS - Abnormal Inc | 256 | 256 | 2 |
| AS399441US | NTXFW1 - TMConcepts LLC | 256 | — | 1 |
| AS32565US | AFSCME-ASN - AFSCME | 256 | — | 1 |
| AS46201US | COYUBA58 - County of Yuba | 256 | — | 1 |
| AS30326US | UMTEC-01 - Universal Micro Technologies Corp | 256 | — | 1 |
| AS32598US | BLACK-HILLS-BROADBAND-NET-1 - Opzix | 256 | — | 1 |
| AS46374US | ICNET - Ideal Concepts, Inc. | 256 | — | 1 |
| AS54472US | 54472 - South Jersey Radiology Associates, P.A. | 256 | — | 1 |
| AS32431US | AIRCASTLE - Aircastle Advisor LLC | 256 | — | 1 |
| AS39115US | NTTGN-NET-VFRPAR1 NTT Global Networks Incorporated | 256 | — | 1 |
| AS400352US | AFS-TX-01 - AFS Logistics, LLC | 256 | — | 1 |
| AS27212US | PERMAR - Per Mar Security | 256 | — | 1 |
| AS40425US | GLDS-CA - GREAT LAKES DATA SYSTEMS, INC. | 256 | — | 1 |
| AS40842US | ANB-WF - American National Bank | 256 | — | 1 |
| AS40184US | MLOC - MeridianLink, Inc. | 256 | — | 1 |
| AS54076US | NAVEX-IT-HOSTING - NAVEX Global, inc | 256 | — | 1 |
| AS393478US | HRBL-WS-INTERNET-BGP - Herbalife International of America, Inc. | 256 | — | 1 |
| AS400748US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | — | 1 |
| AS54130US | AFBA-AS - AFBA | 256 | — | 1 |
| AS402910US | ASN-JEFFERSON-01 - Jefferson | 256 | — | 1 |
| AS398986US | SECUREDGG - Gameserverkings | 256 | — | 1 |
| AS398953US | ABC-WAREHOUSE - ABC Warehouse | 256 | — | 1 |
| AS398164US | WHITEFISHCU-CO - WHITEFISH CREDIT UNION ASSOCIATION | 256 | — | 1 |
| AS6645US | OLEAN-GENERAL-HOSPITAL - OLEAN GENERAL HOSPITAL | 256 | — | 1 |
| AS399620US | NCISD - New Caney ISD | 256 | — | 1 |
| AS36537US | BRMIC-MURRAY-01 - Bear River Mutual Insurance Company | 256 | — | 1 |
| AS20168US | AM-US-AMER-PRECOR-PRECO-11 - Precor Incorporated | 256 | — | 1 |
| AS46740US | SWISHER-INTERNATIONAL - Swisher International, Inc. | 256 | — | 1 |
| AS394076US | HIGHRISE-ASN1 - HIGHRISE AI | 256 | — | 1 |
| AS36177US | EASTWESTBANK - EWB | 256 | — | 1 |