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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 |
| 512 |
| — |
| 2 |
| AS210097US | eXact-Digital-LLC EXACT DIGITAL LLC | 512 | 1 | 3 |
| AS53572US | HNB - Hookers and Blow | 512 | — | 2 |
| AS402251US | BOLD-ROOSEV-HED - Apogee Telecom Inc. | 512 | — | 2 |
| AS27390US | ALGAS - Fred Alger & Co Inc. | 512 | — | 2 |
| AS20203US | FIRST-FINANCIAL-BANK-NA - First Financial Bank NA | 512 | — | 2 |
| AS4563US | BTMU-AMERICA - MUFG Bank Ltd. | 512 | — | 2 |
| AS215129US | WPL-133-215129 - Wodarek Productions LLC | 512 | 4.1K | 4 |
| AS401879US | RACKNODE-AS - RackNode | 512 | 257 | 4 |
| AS396359US | MASCOCABINETRY - Cabinetworks Group Michigan, LLC | 512 | — | 2 |
| AS46108US | VFLMIA2 - NTT Global Networks Incorporated | 512 | — | 2 |
| AS22230US | NETDOCUMENTS-US - NetDocuments | 512 | — | 2 |
| AS216013US | PAPYRUS-AS Caleb Bonner Trading as Papyrus VIP | 512 | — | 2 |
| AS398074US | SN-COLL-DIA - City National Bank | 512 | — | 2 |
| AS396279US | WASHINGTONELECTRIC-AS-1 - WASHINGTON ELECTRIC COOPERATIVE, INC. | 512 | 2 | 4 |
| AS26378US | ADORAMA - ADORAMA | 512 | — | 2 |
| AS46924US | BJU-ASN - Bob Jones University | 512 | 2 | 4 |
| AS399619US | BACKCOUNTRY-BROADBAND - Backcountry Broadband LLC | 512 | 4.6K | 12 |
| AS62918US | ASTM-INTL - American Society for Testing and Materials - ASTM | 512 | — | 2 |
| AS5790US | NETMARKET - Trilegiant Corporation | 512 | — | 2 |
| AS11741US | BENTONREA - BENTON REA POWERNET | 512 | — | 2 |
| AS396014US | TSG - TSG Resources, Inc. | 512 | — | 2 |
| AS398732US | DPCCOMMERCIAL - Deutscher Properties Corporation | 512 | — | 1 |
| AS402123US | UNMTA-AS-01 - UNMTA LLC | 512 | 256 | 3 |
| AS395332US | GINKOID - ginkoid LLC | 512 | — | 2 |
| AS97US | NTTA-97 - NTT America, Inc. | 512 | — | 2 |
| AS18729US | SHAWMUT - Shawmut Design & Construction | 512 | — | 2 |
| AS36649US | RIUS - RIVERSTONE INTERNATIONAL U.S., LLC | 512 | — | 2 |
| AS394653US | BHBT - Bar Harbor Bank & Trust | 512 | — | 2 |
| AS1050US | ONVOX - Onvox LLC | 512 | 258 | 5 |
| AS53763US | LAKESIDE - Lakeside Network, LLC | 512 | 256 | 3 |
| AS393355US | SISA - SAMSUNG RESEARCH AMERICA, INC. | 512 | — | 2 |
| AS400926US | KIWI-TELECOM-01 - KIWI TELECOM | 512 | 65.5K | 3 |
| AS394058US | TELOSC-ASH - Telos Corporation | 512 | — | 2 |
| AS21569US | DBU-AS - Dallas Baptist University | 512 | — | 2 |
| AS11211US | NCIC - NCIC Operator Services | 512 | — | 2 |
| AS46695US | REGENT-ASN1 - Regent University | 512 | — | 2 |
| AS398949US | KISSUSA-NY - KISS NAIL PRODUCTS, INC | 512 | — | 2 |
| AS14528US | SHOTSPOTTER-01 - SHOTSPOTTER, INC. | 512 | — | 2 |
| AS11128US | BERRY-2-ASN - Berry College | 512 | — | 2 |
| AS26208US | COUNTY-OF-ESSEX-NJ - County of Essex NJ | 512 | — | 2 |
| AS55049US | ASN-SCL - Samlyn Capital, LLC | 512 | — | 2 |
| AS36462US | TGNA-KHOU - TEGNA Inc. | 512 | — | 2 |
| AS29769US | AWT-ASN-29769 - Allwire Technologies LLC | 512 | 4.1K | 3 |
| AS54236US | PPPA-ASN - Pacific Press Publishing Association, Inc | 512 | — | 2 |
| AS16797US | TASB-AS - Texas Association of School Boards, Inc | 512 | — | 1 |
| AS32052US | SULLCROM - SULLCROM | 512 | — | 2 |