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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 512 |
| — |
| 2 |
| AS3630US | NYSERNET-BLK - NYSERNet | 512 | 1 | 3 |
| AS54666US | INTERNET-MULTIHOMING-AS - Fugro (USA), INC. | 512 | — | 2 |
| AS50075US | zayocloud-de Zayo Group, LLC | 512 | — | 2 |
| AS54982US | RATE - Guaranteed Rate Inc | 512 | — | 2 |
| AS396533US | NYT-CP - The New York Times Company | 512 | — | 1 |
| AS396846US | FL-WIFI-01 - Florida Wifi, LLC | 512 | — | 2 |
| AS19412US | HASSER-ENTERPRISES-LLC - Hasser Enterprises LLC | 512 | — | 2 |
| AS53374US | NTIU5 - Northwest Tri-County IU 5 | 512 | — | 2 |
| AS400079US | ANGELTRAX - IVS, Inc. | 512 | — | 2 |
| AS36070US | NCHCORP - NCH Corporation | 512 | — | 1 |
| AS14425US | MENDO-COMMUNITY-NET - Mendocino Community Network | 512 | — | 2 |
| AS29782US | VTI-AS29782 - Videojet Technologies Inc. | 512 | — | 2 |
| AS397998US | TGNA-WNEP - TEGNA Inc. | 512 | — | 2 |
| AS393300US | TCC-INTERNET1 - The Cato Corporation | 512 | — | 2 |
| AS396408US | PUBLICINET - City of Greensboro, NC | 512 | — | 1 |
| AS26302US | SOBOBA - Soboba Casino | 512 | — | 2 |
| AS396337US | DE - Dreisbach Enterprises, Inc. | 512 | — | 2 |
| AS3424US | HFMT - National Nuclear Security Administration, Kansas City Plant | 512 | 17 | 4 |
| AS393535US | FORTBENDCOUNTY - Fort Bend County | 512 | — | 2 |
| AS20270US | CLEARSKY-SYSTEMS-INC - FIELD COMMUNICATIONS, INC. | 512 | — | 2 |
| AS36761US | KSBW-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS62857US | BILLINGSCLINIC - BILLINGS CLINIC | 512 | — | 2 |
| AS40813US | INDIANA-MEMBERS-CU - Indiana Members Credit Union | 512 | — | 2 |
| AS46089US | AS2-NAVIS - Navis | 512 | — | 2 |
| AS399326US | SPE-COOP-MS - Southern Pine Electric Cooperative | 512 | — | 1 |
| AS54017US | UCARE-MN - UCare Minnesota | 512 | — | 2 |
| AS397450US | COF94533 - City of Fairfield | 512 | — | 1 |
| AS14428US | POMEROY-TECH-01 - Pomeroy Technologies LLC | 512 | — | 2 |
| AS54223US | ETRAILER - etrailer Corporation | 512 | — | 2 |
| AS399028US | MEADO-ASN-01 - Meadowbrook, Inc. | 512 | — | 2 |
| AS400145US | GLADIUS-DC-01 - Gladius Technology Solutions, LLC | 512 | — | 2 |
| AS18903US | LENDINGTREE - LENDING TREE | 512 | — | 2 |
| AS394220US | AMWAYCENTER - Orlando Venues | 512 | — | 2 |
| AS32792US | TC-GTN - TransCanada Pipelines Limited | 512 | — | 1 |
| AS400862US | CCH1-IPV4-01 - Castle & Cooke Hawaii | 512 | — | 2 |
| AS394333US | TRANSATEL-US - TRANSATEL | 512 | 65.5K | 3 |
| AS21946US | IVSH-ATL-ASN - iVenture Solutions. LLC | 512 | — | 1 |
| AS15262US | TSYS-NDC-COPORATE-INTERNET - Global Payments Inc. | 512 | — | 2 |
| AS54005US | Z-CLOUD - ZPro Solutions | 512 | — | 2 |
| AS32512US | APHA-DC-1 - AMERICAN PUBLIC HEALTH ASSOCIATION | 512 | — | 2 |
| AS20320US | EVENLINK - Evenlink | 512 | — | 1 |
| AS22196US | NEULION - NeuLion, Inc. | 512 | — | 2 |
| AS402306US | AS-DATAFORGE - DataForge Technologies LLC | 512 | — | 2 |
| AS394467US | WEXINC-AOC - WEX INC | 512 | — | 2 |
| AS55098US | LOB-AS - Live Oak Bank | 512 | — | 2 |
| AS393315US | 3000 - ITW FOOD EQUIPMENT GROUP | 512 | — | 1 |