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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 3,656 |
| 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 | 4,379 |
| 1K |
| 3 |
| 6 |
| AS54821US | ALPINE-CONNECTIVE - Alpine Connective LLC | 1K | 4.1K | 2 |
| AS25617US | SMITHNEPHEW - Smith and Nephew, Inc. | 1K | — | 4 |
| AS22446US | MEDLINE - Medline Industries | 1K | — | 3 |
| AS21821US | MMAHS-01 - Montefiore Medical Center | 1K | — | 4 |
| AS32319US | AS-MARQETA - Marqeta, Inc. | 1K | — | 4 |
| AS46824US | NAMECRANE - NameCrane LLC | 1K | 4.1K | 9 |
| AS23515US | ITSOLUTIONS - IT Solutions Consulting, LLC | 1K | — | 4 |
| AS11162US | LN-CHILDRENSHOSPITAL-ASN - Los Nettos | 1K | — | 1 |
| AS394902US | HCDL-PORTLAND-DATA-CENTER - H5 Data Centers | 1K | 256 | 5 |
| AS401458US | IQVIA-DURHAM-6B - IQVIA Holdings Inc | 1K | — | 1 |
| AS13377US | RBB-ASN-1 - Rogue Broadband | 1K | 65.5K | 2 |
| AS15015US | SGC - Spring Grove Communications | 1K | — | 2 |
| AS395220US | LCCA-ASN - Life Care Centers of America, Inc. | 1K | — | 4 |
| AS17364US | SOKA-UNIVERSITY-OF-AMERICA - Soka University of America | 1K | — | 3 |
| AS21955US | GRIFOLS - Grifols Inc. | 1K | — | 4 |
| AS399552US | PATHWAYZ-DFW - Pathwayz Riverside LLC | 1K | — | 3 |
| AS394342US | AMR-NET - Applied Medical Resources Corporation | 1K | — | 4 |
| AS54092US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS395095US | GARNET-HEALTH - Orange Regional Medical Center | 1K | — | 4 |
| AS26409US | LUCID-ASN - Lucid USA, Inc. | 1K | — | 3 |
| AS53315US | NEXUSIS - Nexus IS | 1K | — | 1 |
| AS25903US | GRIDCOMMUNICATIONS-240 - Grid Communications | 1K | — | 4 |
| AS36267US | BPVN - BPVN LLC | 1K | — | 1 |
| AS15342US | DDPMI-1 - DELTA DENTAL PLAN OF MICHIGAN | 1K | — | 4 |
| AS400115US | TREEHOUSE - Treehouse Broadband, LLC | 1K | 65.5K | 4 |
| AS46172US | XID-01 - Enterprise VPS Solutions LLC | 1K | — | 1 |
| AS397641US | ARAMARK-NS2-SCO - ARAMARK | 1K | — | 4 |
| AS398180US | HDERLINK - HDER Link, LTD | 1K | — | 4 |
| AS17340US | EO-1 - EmailOversight, Inc. | 1K | — | 4 |
| AS401461US | ACCELERATE - Accelerate Networks LLC | 1K | 256 | 2 |
| AS29851US | WARBURGPINCUS - E.M. Warburg, Pincus & Co. Inc. | 1K | — | 4 |
| AS398123US | IRACING-CORPORATE - IRACING.COM MOTORSPORT SIMULATIONS, LLC | 1K | 4 | 6 |
| AS21586US | SWKO - SWKO - SouthWest Kansas Online | 1K | — | 4 |
| AS18769US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 1K | — | 3 |
| AS14893US | CHS-MI - Covenant Medical Center, Inc. | 1K | — | 1 |
| AS396971US | SLIC-ASN-4 - Slic Network Solutions, Inc | 1K | — | 4 |
| AS8084US | WOLVERINE-EXECUTIONS-SERVICES - Wolverine Execution Services, LLC | 1K | — | 4 |
| AS35865US | COREANDMAIN - Core & Main | 1K | — | 3 |
| AS53687US | DNI-AS - DataComm Networks Inc. | 1K | — | 4 |
| AS32182US | GMCC - Grange Mutual Casualty Co. | 1K | — | 2 |
| AS834US | IPXO - IPXO LLC | 1K | 131.1K | 5 |
| AS40262US | PANTONE-AS - Pantone Inc. | 1K | — | 4 |
| AS12070US | ANYCAST-01 - ANYCAST LLC | 1K | — | 4 |
| AS393833US | OUTBACKINTERNET - Outback Internet | 1K | — | 3 |
| AS400371US | KHIMAIL - PUEBLO OF LAGUNA UTILITY AUTHORITY | 1K | — | 3 |
| AS35999US | NYPL - The New York Public Library, Astor, Lenox, and Tilden Foundations | 1K | — | 3 |