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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS25991US | BENDIXCVS - Bendix Commerical Vehicle Systems | 256 | — | 1 |
| AS395979US | ONEDIGITAL-AS1 - Digital Insurance | 256 | — | 1 |
| AS32193US | AMMON - City of Ammon, Idaho | 256 | — | 1 |
| AS394627US | ASN-UCC - United Conveyor Corporation | 256 | — | 1 |
| AS32321US | NEWARKNET - NEWARK NET | 256 | — | 1 |
| AS395967US | WIDEPENNET - WON Communications, LLC | 256 | 16.4K | 2 |
| AS397244US | TACKITT-NETWORKS - Tackitt, Inc. | 256 | 1 | 2 |
| AS16515US | ALTAVISTA - Yahoo Holdings Inc. | 256 | — | 1 |
| AS53588US | ATHOC-DC3 - AtHoc Inc | 256 | — | 1 |
| AS394532US | INAZMA - TECPRESSO INC. | 256 | — | 1 |
| AS401010US | BLUEGRASSBB - Bluegrass Broadband, LLC | 256 | — | 1 |
| AS18807US | COMM-WIRELESS-N - Community Wireless | 256 | 65.5K | 2 |
| AS401314US | GOLDENVM-LLC - GoldenVM LLC | 256 | — | 1 |
| AS395175US | HEIDENTECH - Heiden Technology Solutions | 256 | — | 1 |
| AS402365US | FIVISION - fiVISION | 256 | 256 | 2 |
| AS46305US | UA-4585 - Universal Audio, Inc. | 256 | — | 1 |
| AS54445US | DIERBERGS - Dierbergs | 256 | — | 1 |
| AS30410US | FCSO1-ASN - First Coast Service Options, Inc. | 256 | — | 1 |
| AS394681US | SUMMITHEALTHCARE - Summit Healthcare Regional Medical Center | 256 | — | 1 |
| AS19096US | DESALES-NETWORK - DeSales University | 256 | — | 1 |
| AS401442US | SPUR - Spur Intelligence Corporation | 256 | 2 | 3 |
| AS11382US | WRF162 - Wiley Rein LLP | 256 | — | 1 |
| AS398206US | BIGSKY-NETWORKS - BigSky Networks, Inc. | 256 | — | 1 |
| AS19712US | ZOLL-CHELM - ZOLL Medical Corporation | 256 | 1 | 2 |
| AS17238US | CSEG-1 - Columbia Southern Education Group, Inc. | 256 | — | 1 |
| AS396500US | MINAKILABS-AS01 - MinakiLabs | 256 | 4.1K | 2 |
| AS33390US | READYTECH - READYTECH CORPORATION | 256 | — | 1 |
| AS16699US | US-HENSELPHELPS-AS01 - Hensel Phelps | 256 | — | 1 |
| AS22669US | CNANHQ-01 - CNA National Warranty Corporation | 256 | — | 1 |
| AS399513US | MODA-PARTNERS-INC-01 - Moda Health | 256 | — | 1 |
| AS396119US | AVERA-ECARE - AVERA MCKENNAN | 256 | — | 1 |
| AS53734US | NUTTER-ASN-01 - Nutter | 256 | — | 1 |
| AS22618US | GWK-LLC - Gannett Welsh & Kotler LLC | 256 | — | 1 |
| AS400272US | GCYAZ - Gowan Company, L.L.C. | 256 | — | 1 |
| AS398084US | AS-NETWORK228-536 - Network 228, LLC | 256 | — | 1 |
| AS401579US | RYTEL - RyTel LLC | 256 | — | 1 |
| AS14675US | AS14675-66-128-188-0-SLASH-24 - Plains Commerce Bank | 256 | — | 1 |
| AS7181US | AS-TIERP-7181 - TierPoint, LLC | 256 | — | 1 |
| AS40208US | GLHOMES - G.L. Homes of Florida Corporation | 256 | — | 1 |
| AS46767US | SMLWIRELESS - SMLW, Inc. | 256 | 16.4K | 2 |
| AS395300US | MADONNA-REHABILITATION-HOSPITAL - Madonna Rehabilitation Hospital | 256 | — | 1 |
| AS397744US | REANONYMOUS - ReAnonymous LLC | 256 | — | 1 |
| AS27301US | CERNER-MINNESOTA-DC - Cerner Corporation | 256 | — | 1 |
| AS63032US | DICOMGRID - DICOM Grid Inc | 256 | — | 1 |
| AS393493US | LOTTEBIOLOGICS - Lotte Biologics USA, LLC | 256 | — | 1 |
| AS40110US | CCI-ASN - CCI | 256 | — | 1 |