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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 | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| 2.6K |
| — |
| 5 |
| AS46883US | BCCTV - Bay Country Communications, Inc. | 2.6K | — | 4 |
| AS21615US | CEBRIDGE - Cebridge Connections | 2.6K | — | 9 |
| AS33530US | KIRKLAND-ELLIS-AR - Kirkland & Ellis LLP | 2.6K | — | 10 |
| AS40050US | BRNL - Blue Rim Networks, LLC | 2.6K | 32.8K | 10 |
| AS32059US | TRADESTATION-1 - TradeStation Securities, Inc | 2.6K | — | 10 |
| AS30560US | GE-MS001 - GE Precision HealthCare LLC | 2.3K | — | 10 |
| AS18994US | LABCORP-BLS - Laboratory Corporation of America | 2.3K | — | 10 |
| AS19032US | WLETC - Wireless Etc Inc. | 2.3K | 65.5K | 13 |
| AS399728US | PFOUNDATION - P Foundation | 2.3K | 10 | 16 |
| AS20148US | VANTIVA-CH - Vantiva USA Shared Services Inc. | 2.3K | 1 | 10 |
| AS11621US | REYESHOLDINGSLLC - Reyes Holdings, L.L.C. | 2.3K | — | 9 |
| AS19153US | UTMARTIN - The University of Tennessee at Martin | 2.3K | — | 4 |
| AS32328US | ALASCOM-IP-MANAGED-NETWORK - Alascom, Inc. | 2.3K | — | 6 |
| AS400639US | ORB-ASN-ME-1 - Outer Reach Broadband LLC | 2.3K | — | 3 |
| AS19311US | STEWART-1 - Stewart Title | 2.3K | — | 9 |
| AS393574US | ONPOINT-BROADBAND - OnPoint Broadband | 2.3K | — | 2 |
| AS19460US | SUTH - Sutherland Global Services, Inc. | 2.3K | — | 8 |
| AS393836US | GSG - Grant Street Group, INC. | 2.3K | — | 5 |
| AS986US | KINGSBURGMEDIA-01 - Kingsburg Media Foundation | 2.3K | 4.1K | 4 |
| AS40780US | VASPIAN-BFLO - Vaspian LLC | 2.3K | — | 2 |
| AS397903US | SPRINGCOM-01 - Springcom | 2.3K | 65.5K | 3 |
| AS17176US | BCG-NETWORKS - BCG Networks LLC | 2.3K | 256 | 10 |
| AS394053US | NAICWEB - National Association of Insurance Commissioners | 2.3K | — | 2 |
| AS21857US | PROHEALTH-CARE - ProHealth Care Inc. | 2.3K | — | 6 |
| AS26787US | NM-01 - Northwestern Mutual Life Insurance Company | 2.3K | 2 | 4 |
| AS19796US | SHUBERT - Shubert Organization, Inc. | 2.3K | — | 9 |
| AS16614US | STARWIRE-TECHNOLOGIES - Starwire Technologies, LLC | 2.3K | 65.5K | 4 |
| AS21651US | THRIVENTFINANCIAL - Thrivent Financial for Lutherans | 2.3K | — | 6 |
| AS395512US | GLOBAL2016 - GLOBALHOSTINGSOLUTIONS INC | 2.3K | 65.5K | 6 |
| AS63452US | VELOCIHOST - Velocihost Inc. | 2.3K | 769 | 10 |
| AS20100US | INFRADAPT - Infradapt | 2.3K | — | 8 |
| AS10489US | ARMOUR-AS - Armour Cloud, LLC | 2.3K | — | 9 |
| AS393857US | TS-419 - Premier Satellite | 2.3K | 4.1K | 9 |
| AS401669US | CLOUDCENTRX - cloudCENTRX | 2.3K | — | 4 |
| AS30113US | DEMATIC-US - Dematic Corp. | 2.3K | — | 6 |
| AS62571US | IMPERVA-INC-US-SJ-COLO - IMPERVA INC | 2.3K | 4 | 13 |
| AS32852US | LEXNE-ASN-1 - Lexington Electric System | 2.3K | 65.5K | 3 |
| AS27475US | WAYFAIR-ASN - Wayfair LLC | 2.3K | — | 6 |
| AS46339US | AS-CSDVRS - ZP Better Together, LLC | 2.3K | — | 4 |
| AS55113US | UNIVERSITY-OF-REDLANDS - University of Redlands | 2.3K | — | 5 |
| AS21785US | REDHAT-3 - Red Hat, Inc. | 2.3K | 1 | 3 |
| AS6649US | HYAK - Hyak | 2.3K | 65.5K | 6 |
| AS398772US | FIBERASN-US - Fiber Optical Network LLC | 2.3K | — | 6 |
| AS20404US | AS20404 - NRG Energy, Inc. | 2.3K | — | 7 |
| AS11281US | ROBLOX-CORPORATE - Roblox | 2.3K | 2 | 11 |
| AS54294US | ECC-LINK-001 - ERIE COMMUNITY COLLEGE | 2.3K | — | 9 |