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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS1483US | DNIC-AS-01483 - Headquarters, USAISC | — | — | 0 |
| AS401113US | SCH-TEST-AS - RackGenius | — | 1 | 1 |
| AS54144US | EI-SERVICES - Shawn Kleinart Consulting | — | — | 0 |
| AS53998US | FOX - Fox | — | — | 0 |
| AS54061US | TBBK-INTERNET - The Bancorp Incorporated | — | — | 0 |
| AS53422US | BRIVOSYSTEMS - Brivo Systems, LLC | — | — | 0 |
| AS212364US | THEO-AS Theophilus Bassaw-Koomson | — | — | 0 |
| AS53295US | ROVI - Rovi Corporation | — | — | 0 |
| AS53553US | AS-CASTLE - Complete Building Technology Services Inc. | — | — | 0 |
| AS46977US | VIRTUSTREAM-US - Dell, Inc. | — | — | 0 |
| AS46968US | SOUTHERNSEMINARY - Southern Baptist Theological Seminary | — | — | 0 |
| AS63218US | ARIN-WEBINAR - American Registry for Internet Numbers | — | — | 0 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS62687US | COLONIAL-SAVINGS-F-A - Colonial Savings, F.A. | — | — | 0 |
| AS62655US | TRANSFORMATIVEMED - TransformativeMed, Inc. | — | — | 0 |
| AS55074US | DIALOGTECH-EAST - Invoca, Inc. | — | — | 0 |
| AS47192US | ASS-136-47192 - AZSIGNSHOP LLC | — | — | 0 |
| AS62554US | BSTONE-2K12 - BLACKSTONE CALLING CARD, INC. | — | — | 0 |
| AS11344US | YOUTUBE - YouTube, LLC | — | — | 0 |
| AS30397US | CITY-OF-DALLAS-ASN - City of Dallas | — | — | 0 |
| AS46531US | EXCORESO - Exco Resources, Inc. | — | — | 0 |
| AS402407US | AS-NEPTUNE-CUST - Neptune | — | — | 0 |
| AS46164US | ATT-MOBILITY-LABS - AT&T Enterprises, LLC | — | — | 0 |
| AS46148US | MONOCOUNTYCA-BRIDGEPORT - County of Mono | — | — | 0 |
| AS40927US | INVESCO-INDIA - Invesco Group Services, Inc. | — | — | 0 |
| AS46092US | RAI - RESOURCE AMERICA | — | — | 0 |
| AS33013US | AICPA - American Institute of Certified Public Accountants | — | — | 0 |
| AS33006US | LOGICALHOST - Logical Host, LLC | — | — | 0 |
| AS32327US | ZAYOB-NE - Zayo Bandwidth NorthEast LLC | — | — | 0 |
| AS33180US | ATLWEB - Community Loans of America | — | — | 0 |
| AS30604US | SPEEDY-4 - Curo Management LLC | — | — | 0 |
| AS30602US | ISPRIME - ISPrime, Inc. | — | — | 0 |
| AS26682US | NYA - ByteNya LLC | — | 1 | 1 |
| AS30461US | QNACO-AS004 - QnA Consulting | — | — | 0 |
| AS36386US | ADVANCED-TRACKING-TECHNOLOGIES-INC - Advanced Tracking Technologies, Inc. | — | — | 0 |
| AS36203US | STELLAR-ASSOCIATION - Stellar Association, LLC | — | — | 0 |
| AS33215US | OVATI-10 - Ovation Travel Group, Inc. | — | — | 0 |
| AS31961US | IDC-WEB - International Data Corporation | — | — | 0 |
| AS33479US | CEENTA - Charlotte Eye, Ear, Nose and Throat Associates, P.A. | — | — | 0 |
| AS33399US | CWM-INTERNET - CITY OF WEST MELBOURNE | — | — | 0 |
| AS35933US | NELSON-HQ-AS - Nelson & Associates | — | — | 0 |
| AS33242US | LIGHTYEAR-NY - LIGHTYEAR CAPITAL LLC | — | — | 0 |
| AS211369US | VERISIGN-AS VeriSign Inc. | — | — | 0 |
| AS210883US | AQUASYS Aquasys, LLC | — | — | 0 |
| AS199465US | feiya FeiYa Network LTD. | — | — | 0 |