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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS394819US | NOST-EAST - NNSA Office Of Secure Transportation | 512 | — | 2 |
| AS50389US | PHOENIXNAP-DE PHOENIX NAP, LLC. | 512 | 2 | 4 |
| AS393697US | HUBUSILEGVDCSUB - Hub International | 512 | — | 2 |
| AS398401US | CRONUS - CRONUS COMMUNICATIONS, L.L.C. | 512 | — | 2 |
| AS26511US | AACT-INTERNET - AAA Cooper Transportation, Inc. | 512 | — | 2 |
| AS398737US | INTELLIVOICE - IntelliVoice | 512 | — | 2 |
| AS394733US | LALC-ASN - Los Angeles LGBT Center | 512 | — | 2 |
| AS398320US | TALBOT-EMERGENCY-SERVICES-01 - Talbot County Department of Emergency Services | 512 | — | 2 |
| AS32689US | TGNA-KREM - TEGNA Inc. | 512 | — | 2 |
| AS22337US | DTBNET - DVS Solutions | 512 | — | 1 |
| AS36467US | MAINLINE-INFORMATION-SYSTEMS - Mainline Information Systems Inc. | 512 | — | 2 |
| AS32352US | MGRC - MCGRATH RENTCORP | 512 | — | 2 |
| AS394149US | VI-CONCEPTS - VI Concepts, Inc. | 512 | 16 | 2 |
| AS395971US | QUESTSOFTWARE - Quest Software Inc | 512 | — | 2 |
| AS54822US | R1RCM - Intermedix | 512 | — | 2 |
| AS60154US | connectria-asn-1 Connectria, LLC | 512 | 524.3K | 3 |
| AS40632US | FGLIFE-COLO1 - Fidelity & Guaranty Life | 512 | — | 2 |
| AS395105US | JDAWI2 - Blue Yonder, Inc | 512 | — | 2 |
| AS46843US | TGNA-KTVB - TEGNA Inc. | 512 | — | 2 |
| AS53869US | KRYPTIQ - Surescripts, LLC | 512 | — | 1 |
| AS395203US | SCHOOLCRAFTDEVELOPMENTAUTHORITY - Schoolcraft Development Authority, Inc | 512 | — | 1 |
| AS206628US | EzriCloud Tianyu-Zhu | 512 | 4 | 6 |
| AS393661US | NEVADACOUNTY-CA - County of Nevada | 512 | — | 1 |
| AS19511US | ELECTROLUX-NA - Electrolux Home Products, Inc. | 512 | — | 2 |
| AS395441US | EDGECONNEX-ASN - EdgeConneX, INC | 512 | — | 2 |
| AS46587US | 2991400 - Cerberus Capital Management LP | 512 | — | 2 |
| AS55111US | CALVERT-COUNTY - Calvert County | 512 | — | 1 |
| AS53664US | PICOTRADING - Pico Quantitative Trading, LLC | 512 | — | 2 |
| AS30259US | BROADASPECT - BroadAspect | 512 | — | 2 |
| AS40668US | FENWAL-INCORPORATED - Fenwal, Inc. | 512 | — | 2 |
| AS55239US | VWNA-AS2 - Volkswagen Group of America, Inc. | 512 | — | 2 |
| AS54277US | SSG - SUPPORT SERVICES GROUP, INC. | 512 | — | 2 |
| AS29750US | ALASKA-AIRGROUP-IGQ - Alaska Airlines, Inc. | 512 | — | 2 |
| AS31751US | AS-MB-1 - The Market Builder, Inc | 512 | — | 1 |
| AS14149US | ICONFITNESS-MAIN - Icon Health & Fitness Inc | 512 | — | 2 |
| AS398145US | MHM-DATACENTER-01 - Centurion Group, Inc. | 512 | — | 2 |
| AS54500US | 18779 - EGIHosting | 512 | — | 2 |
| AS397088US | MACC-TECHMGM - Montgomery Area Chamber of Commerce | 512 | 1 | 3 |
| AS399368US | KIRKLAND-ELLIS-RY - Kirkland & Ellis LLP | 512 | — | 2 |
| AS62974US | OOCL-SLC - OOCL (USA) Inc. | 512 | — | 2 |
| AS36833US | DVTRADING-LLC - DV TRADING, LLC | 512 | — | 2 |
| AS15126US | SMAI - Suzuki Marine USA, LLC | 512 | — | 2 |
| AS11651US | AS-TKCHOLDINGS-LLC - Centric Group, LLC | 512 | — | 2 |
| AS19193US | SPIDERROCK-GW - SPIDERROCK HOLDINGS, LLC | 512 | — | 2 |
| AS401363US | LYNCROSS - Lyncross LLC | 512 | 2 | 4 |
| AS198905US | DIGICERT_QUOVADIS DigiCert, Inc. | 512 | — | 2 |