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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS218654US | SWISH-WORLD Swish World Group Inc. | 512 | 3 | 5 |
| AS401575US | JPPS-01 - Jeff Parrish, Sole Proprietorship | 512 | 256 | 3 |
| AS397419US | OREGON-STATE-LOTTERY - Oregon State Lottery | 512 | — | 2 |
| AS394302US | IAD-COLO - Qualcomm, Inc. | 512 | 2 | 3 |
| AS13313US | BARNES-AND-NOBLE - Barnes & Noble Inc. | 512 | — | 2 |
| AS17196US | COD-GE-IL - College of duPage | 512 | — | 1 |
| AS395216US | TELLIGEN - TELLIGEN | 512 | — | 2 |
| AS399238US | WELLS-NV-BEEHIVE - Satview Broadband LTD | 512 | — | 2 |
| AS399533US | TATRA - Tatra Services Inc. | 512 | 4.4K | 4 |
| AS35872US | FREEDOM-PHL-AS - FreedomPay, Inc. | 512 | — | 2 |
| AS395034US | ZTHERNET - Zthernet, LLC | 512 | — | 2 |
| AS393376US | DYNAMICEDGE - Dynamic Edge, Inc. | 512 | — | 1 |
| AS21900US | LBPC - LAW BULLETIN PUBLISHING COMPANY | 512 | — | 2 |
| AS19670US | CUSTOMCOMPUTERSPECIALISTS - Custom Computer Specialists, Inc. | 512 | — | 2 |
| AS33535US | MONOXIDE - Monoxide Network LLC | 512 | 2 | 4 |
| AS53727US | AS-PENGUIN - Penguin Networks | 512 | 36 | 8 |
| AS19357US | NESL - New Enterprise Stone & Lime Company | 512 | — | 2 |
| AS1437US | VISONEX-LLC - Visonex LLC | 512 | — | 2 |
| AS401081US | OPENINFRA-FL - Open Infra Inc. | 512 | — | 2 |
| AS32109US | REDDOTNET-USA - Reddot Networks Inc. | 512 | 4.1K | 3 |
| AS46138US | MAIKIWI-COMPANY-AS - Maikiwi Network LLC | 512 | 1 | 3 |
| AS36298US | INFOCISION - InfoCision Management Corporation | 512 | — | 2 |
| AS395990US | IN-ASN01 - InitiumNovum, LLC | 512 | — | 2 |
| AS53489US | TGNA-WBIR - TEGNA Inc. | 512 | — | 2 |
| AS393977US | GSB - Great Southern Bank | 512 | — | 2 |
| AS5721US | NDU-NET - National Defense University | 512 | — | 2 |
| AS32225US | MCGRAW-BCM - BCM One, Inc. | 512 | — | 2 |
| AS396085US | SUPERIOR-LIVESTOCK-AUCTION - Superior Livestock Auction, LLC | 512 | — | 2 |
| AS400697US | OPTIMAS-SOLUTIONS - Optimas OE Solutions, LLC | 512 | — | 2 |
| AS54906US | BENCODENTAL - Benco Dental Company | 512 | — | 2 |
| AS30522US | MNMC - Mount Nittany Medical Center | 512 | — | 2 |
| AS400036US | SAC-01 - Seattle Arena Company, LLC | 512 | — | 2 |
| AS33690US | AUREON-33690 - Aureon Network Services | 512 | 256 | 3 |
| AS396017US | COMCAST-MES - Comcast Cable Communications, LLC | 512 | 1 | 3 |
| AS7034US | PHIREPHLY-DESIGN - PhirePhly Design | 512 | 2 | 4 |
| AS40877US | XULA - Xavier University of Louisiana | 512 | — | 2 |
| AS18955US | TWEA-AS - Treasury Wine Estates Americas | 512 | — | 1 |
| AS54766US | DC-ASN-01 - Hilton Resorts Corporation | 512 | — | 2 |
| AS62918US | ASTM-INTL - American Society for Testing and Materials - ASTM | 512 | — | 2 |
| AS7820US | TOWERFCU-AS - Tower Federal Credit Union | 512 | — | 2 |
| AS11765US | NETSURION-LLC-AS11765 - Netsurion LLC | 512 | — | 1 |
| AS401706US | VALLEY-SMART-HOMES - Valley Smart Homes | 512 | 4.1K | 3 |
| AS54266US | ABCFINANCIAL - ABC Financial Services, Inc. | 512 | — | 2 |
| AS203729US | igloo22225 June Slater | 512 | 4 | 6 |
| AS18622US | IVANET-YTO - IBASIS INC. | 512 | — | 2 |
| AS398351US | MAYMOBILITY - May Mobility, Inc | 512 | 2 | 4 |