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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1K |
| — |
| 1 |
| AS14300US | NAF-SNAP7 - New American Funding | 1K | — | 3 |
| AS22038US | PRIME-SGF1 - New Prime, Inc. | 1K | — | 4 |
| AS14625US | PGA-TOUR - PGA Tour | 1K | — | 4 |
| AS18778US | CLA - CliftonLarsonAllen, LLP | 1K | — | 4 |
| AS23083US | IRONCORE-LAX - Ironcore, Inc. | 1K | — | 3 |
| AS399886US | APOG-LYCOMING - Apogee Telecom Inc. | 1K | — | 3 |
| AS398698US | NETASSIST - NETASSIST LLC | 1K | 66K | 7 |
| AS26936US | USI - USI INSURANCE SERVICES | 1K | — | 2 |
| AS401276US | UNITEDCLOUD - United Cloud Inc | 1K | — | 4 |
| AS20267US | INTERNETSERVER - INTERNET SERVER CONNECTIONS INC | 1K | — | 1 |
| AS33054US | MCCRACKENFS - McCracken Financial Software | 1K | — | 3 |
| AS394994US | PIVOTAL - AgUplink, LLC. | 1K | — | 1 |
| AS8173US | STARBOARD - Starboard Networks LLC | 1K | 256 | 2 |
| AS19216US | REVLON-AS - Revlon Consumer Products Corp. | 1K | — | 4 |
| AS397444US | AS-OKI - Overkill Interbuzz LLC | 1K | 10 | 14 |
| AS54190US | LDSM-AS - Leads Media, Inc | 1K | — | 1 |
| AS16861US | REVELEX - Revelex.com | 1K | — | 1 |
| AS15092US | STAR2STAR - Sangoma US Inc. | 1K | 2 | 6 |
| AS18769US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 1K | — | 3 |
| AS26254US | 568721-017489901135-1 - Mail2world INC. | 1K | — | 4 |
| AS400416US | TRADINGVIEW-INC - TradingView, Inc. | 1K | — | 4 |
| AS22169US | OMNIS-ANYCAST-1 - Omnis Network, LLC | 1K | 4 | 8 |
| AS15131US | DATASERV - DATASERV | 1K | — | 3 |
| AS18546US | ACN-NADC - Accenture LLP | 1K | — | 4 |
| AS46083US | MCCARHTY-BURGESS-WOLFF - McCarthy, Burgess & Wolff, Inc. | 1K | — | 1 |
| AS32819US | ENTITY-SOLUTIONS-LLC - Entity Solutions LLC | 1K | 1 | 2 |
| AS26522US | SU-ASN-1 - Stevenson University | 1K | 4.1K | 5 |
| AS11326US | ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 1K | — | 4 |
| AS218682US | ORG-OCL45-AS OpenWave Connect LLC | 1K | — | 4 |
| AS46357US | CALPOLY-NETLAB - California Polytechnic State University | 1K | 1 | 2 |
| AS16545US | OSSDS - OSSDS, LLC | 1K | — | 1 |
| AS36061US | WATERLOO-01 - Waterloo Fiber | 1K | 4.1K | 2 |
| AS400800US | DAYTON-CHILDRENS-HOSPITAL - Dayton Children's Hospital | 1K | — | 3 |
| AS40515US | AS-CMH1-1 - Athenahealth | 1K | — | 1 |
| AS399362US | SHIFT4-CORP - SHIFT4 PAYMENTS, LLC | 1K | — | 3 |
| AS19210US | SYNCHRONOSS - SYNCHRONOSS TECHNOLOGIES | 1K | 3 | 7 |
| AS394741US | ICCU - Idaho Central Credit Union | 1K | — | 3 |
| AS202292US | Dodecagon Dodecagon ST LLC | 1K | 524.3K | 3 |
| AS396054US | DWS-ANA-VISITOR - Disney Worldwide Services, Inc. | 1K | — | 3 |
| AS399853US | GREENSTATE-CU - GreenState Credit Union | 1K | — | 3 |
| AS35999US | NYPL - The New York Public Library, Astor, Lenox, and Tilden Foundations | 1K | — | 3 |
| AS393577US | TRITAN-DEVELOPMENT - Tritan Development | 1K | 8.2K | 11 |
| AS11633US | 4LIFE-HOLDINGS-LLC - 4Life Research USA, LLC | 1K | — | 3 |
| AS21690US | MILESIT - Miles IT Company | 1K | — | 1 |
| AS13532US | NEED-TO-KNOW-NEWS - Need To Know News, LLC | 1K | — | 1 |
| AS20127US | KLEINSCHMIDT - Kleinschmidt Inc. | 1K | 2 | 6 |