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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 | 21,160 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| APOG-SUNYCANTON-NY - Apogee Telecom Inc. |
| 256 |
| — |
| 1 |
| AS6092US | HARFORDCC-AS - Harford Community College | 256 | — | 1 |
| AS54928US | MSMC-FL - Mount Sinai Medical Center of Florida, Inc. | 256 | — | 1 |
| AS15357US | HCL-186-15357 - HARBIN CLINIC, LLC | 256 | — | 1 |
| AS397840US | GMS-ASN-01 - GENERAL MARKETING SOLUTIONS LLC | 256 | — | 1 |
| AS23104US | AMERICAN-TIRE-DISTRIBUTORS-INC - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS402232US | ADMA-ASN-01 - ADMA BIOMANUFACTURING, LLC | 256 | — | 1 |
| AS31804US | WEYCO-GROUP-INC - WEYCO GROUP, INC | 256 | — | 1 |
| AS63274US | WVSU - West Virginia State University | 256 | — | 1 |
| AS30434US | LOEWS - LOEWS CORPORATION | 256 | — | 1 |
| AS21764US | CFCU-CORP - Clearview Federal Credit Union | 256 | — | 1 |
| AS394750US | SMKTG - Universal Furniture International Inc. | 256 | — | 1 |
| AS62961US | BISNET1 - Blueshift Information Systems Inc. | 256 | — | 1 |
| AS11588US | LAMBDA-BB - Lambda | 256 | 65.5K | 2 |
| AS13714US | AS-AFILIAS-SYD1 - Afilias, Inc. | 256 | — | 1 |
| AS10942US | PECHANGA-FIBER-AS - Pechanga Band of Indians | 256 | — | 1 |
| AS402229US | ARIA-JAMES - Aria and James | 256 | — | 1 |
| AS33560US | LINCOLNINVESTMENTPLANNING - Lincoln Investment Planning, LLC. | 256 | — | 1 |
| AS205811US | sfm-pop Supply Frame, Inc. | 256 | — | 1 |
| AS401833US | AXNET-AS - AXNET LLC | 256 | 256 | 2 |
| AS30681US | JCU-ASN - John Carroll university | 256 | — | 1 |
| AS63455US | AS63455 - C&J Spec-Rent Services, Inc. | 256 | — | 1 |
| AS11695US | THESTREET-DOT-COM - TheStreet.Com | 256 | — | 1 |
| AS400904US | KEY-MANAGEMENT - Key Investment | 256 | — | 1 |
| AS398162US | PANOLA-COLLEGE - Panola College | 256 | — | 1 |
| AS14384US | HOSTDESIGNS - HOST DESIGNS, LLC | 256 | — | 1 |
| AS16408US | LN-DREWU-ASN - Los Nettos | 256 | — | 1 |
| AS394732US | DMOS-1 - Des Moines Orthopaedic Surgeons, P.C. | 256 | — | 1 |
| AS215327US | Altare Altare AI LLC | 256 | — | 1 |
| AS11174US | AS-ATHEN-1 - Athenahealth | 256 | — | 1 |
| AS401693US | CANI - Brightpoint | 256 | 19 | 5 |
| AS54943US | FNIS-INSURANCE-JACKSONVILLE - Stillwater Insurance Services, Inc | 256 | — | 1 |
| AS46881US | ACMH-HOSPITAL - ACMH Hospital | 256 | — | 1 |
| AS401044US | BLUETYPE - BlueType LLC | 256 | 1 | 2 |
| AS5062US | APPLI-39-5062 - Applied Microsystems, Inc. | 256 | — | 1 |
| AS63006US | TRUHEARINGWJ - TruHearing, Inc | 256 | — | 1 |
| AS396474US | ANNEX-FIBER - Annex Fiber Inc. | 256 | 256 | 2 |
| AS21800US | AIT-24PLN-ASN - Advanced Integration Technology, LP | 256 | — | 1 |
| AS400517US | LINESPEED - Linespeed | 256 | 256 | 2 |
| AS4505US | WHDH-BOS - WHDH-TV | 256 | — | 1 |
| AS63059US | NETSER-US-DE1 - Netser, Inc. | 256 | — | 1 |
| AS19150US | ABCWUA-ASN - Albuquerque Bernalillo County Water Utility Authority | 256 | — | 1 |
| AS399802US | FIBERSMITH-CBLOCK-170-31-11 - The Fibersmith Company | 256 | — | 1 |
| AS40658US | USM-OK1 - US Monitoring, Inc. | 256 | — | 1 |
| AS19013US | 19013 - PFG Customized Distribution | 256 | — | 1 |
| AS7816US | CTC - Concurrent Technologies Corporation | 256 | — | 1 |
| AS393693US | EA-BOGOTA - Electronic Arts, Inc. | 256 | — | 1 |