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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS397799US | SEMINOLE-CLERK-OF-COURTS-AND-COMPTROLLER - Seminole County Clerk of Courts and Comptroller | 256 | 1 | 2 |
| AS21670US | BPC-CERMAK - Berlin Packaging, LLC | 256 | — | 1 |
| AS26657US | NEUROPACE-CORPORATE-SITE - Neuropace | 256 | — | 1 |
| AS26987US | COAHOMACC - Coahoma Community College | 256 | — | 1 |
| AS29816US | SWA-MKT-INET-2 - Southwest Airlines Co. | 256 | — | 1 |
| AS394018US | ARIN-PFS-SEA - ARIN Operations | 256 | 1 | 2 |
| AS22980US | APOGEE-TELECOM-RESERVED - Apogee Telecom Inc. | 256 | — | 1 |
| AS396275US | MHSH-GWY-BGP1 - Material Handling Systems, Inc. | 256 | — | 1 |
| AS394048US | GSE-LINK-01 - Global Satellite Engineering, Inc | 256 | 4.1K | 2 |
| AS393274US | DARIGOLD-NET - Darigold, Inc. | 256 | — | 1 |
| AS399505US | EBNHC-AS - East Boston Neighborhood Health Center | 256 | — | 1 |
| AS11330US | BANKPLUS-NETWORK-01 - BankPlus | 256 | — | 1 |
| AS46319US | AAM-ASN1 - American Axle and Manufacturing, Inc. | 256 | — | 1 |
| AS54274US | AS54274 - Henny Penny Corporation | 256 | — | 1 |
| AS13655US | AXXESS-NETWORKS - Axxess Networks LLC | 256 | — | 1 |
| AS33228US | SOFTIRON-ASN-SJC - SoftIron | 256 | 1 | 2 |
| AS18743US | EVERENCE-SERVICES-LLC - MENNONITE MUTUAL AID | 256 | — | 1 |
| AS401006US | DEEPINTENT - DeepIntent, Inc. | 256 | — | 1 |
| AS30453US | INTERNET - Central Ohio Transit Authority | 256 | — | 1 |
| AS26776US | VORTEX-OPTICS - Vortex Optics | 256 | — | 1 |
| AS32942US | SCMASN - Sandler Capital Management | 256 | — | 1 |
| AS40930US | MERIDIANKNOWLEDGESOLUTIONS - Meridian Knowledge Solutions | 256 | — | 1 |
| AS396957US | NDBH-ASNUMBER - New Directions Behavioral Health, LLC | 256 | — | 1 |
| AS393863US | DMA-IND-DC - DMA | 256 | — | 1 |
| AS32930US | MMCHS - Meadville Medical Center | 256 | — | 1 |
| AS63215US | DRILLCOMM - Sound & Cellular, Inc. | 256 | — | 1 |
| AS393244US | AS-OVERLAKE - Overlake Hospital Medical Center | 256 | — | 1 |
| AS19434US | SPRICHARDS - S. P. RICHARDS COMPANY | 256 | — | 1 |
| AS29759US | OXFORD-INDUSTRIES - Oxford Industries | 256 | — | 1 |
| AS402331US | NWT-030 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS27514US | KCML - Kingdon Capital Management, LLC | 256 | — | 1 |
| AS398800US | TOLE-TX-NET - Town of Little Elm | 256 | — | 1 |
| AS13372US | FEDERATEDINV - Federated Investors | 256 | — | 1 |
| AS395507US | RCH350 - Redlands Community Hospital | 256 | — | 1 |
| AS398261US | MCCC-MONROE-MI - Monroe County Community College | 256 | — | 1 |
| AS32784US | NEBR-ORTHO-HOSP - OrthoNebraska | 256 | — | 1 |
| AS393652US | CSB-YORK - Cornerstone Bank | 256 | — | 1 |
| AS32046US | SULLCROM - SULLCROM | 256 | — | 1 |
| AS15340US | CVI-BORDER-1 - Community Vision, Inc. | 256 | — | 1 |
| AS33323US | JABIL-AS-AMSU-PH - Jabil | 256 | — | 1 |
| AS14191US | HT-WATERBURY-INC-01 - H&T Waterbury, INC | 256 | — | 1 |
| AS62718US | SSDCOUGARSNET-SPRINGFIELD-SCHOOL-DISTRICT-DELCO - Springfield School District | 256 | — | 1 |
| AS402465US | TAHOMA-RADIOELECTRIC - Tahoma | 256 | 1 | 2 |
| AS209706US | magoodsllc M&A GOODS LLC | 256 | — | 1 |
| AS396909US | NMMCC-AS - New Mexico Mutual Casualty Company | 256 | — | 1 |
| AS398806US | VIS-2020-01 - Valli Information Systems, Inc | 256 | — | 1 |