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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS15US | NET-DYNAMICS-EXP - DYNAMICS | — | — | 0 |
| AS1795US | COGENT-1795 - Cogent Communications, LLC | — | — | 0 |
| AS205336US | DEEPSPACECOW-NET Ishmael Martin-Lacayo | — | 1 | 1 |
| AS960US | ORTHOFIX-IDC - Orthofix Medical INC | — | — | 0 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS398315US | AS-SSS - Selective Service System | — | — | 0 |
| AS398507US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398046US | ZIMMERBIOMET-INET - Zimmer Biomet Holdings Inc | — | — | 0 |
| AS200790US | BYTEFIZZ BYTEFIZZ LLC | — | 269 | 11 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS395958US | XEROX-LON - XEROX CORPORATION | — | — | 0 |
| AS396373US | 27595 - Columbia College Chicago | — | — | 0 |
| AS395496US | MICROSOFT-CORP-AS-BLOCK-MSIT3 - Microsoft Corporation | — | — | 0 |
| AS395004US | MOTIVACTION-ASN - MotivAction, LLC | — | — | 0 |
| AS395058US | FEISYSTEMS - FEi Systems | — | — | 0 |
| AS398595US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS18535US | ROCHE-INDY - Hoffmann LaRoche, Inc. | — | 4.4K | 2 |
| AS402234US | LARC-PUBLIC-1 - LOS ALISOS RANCH COMPANY, LP | — | — | 0 |
| AS396678US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396595US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS402383US | KUMREZ - Kumrez | — | — | 0 |
| AS402457US | KCITL-US-AS - KENYU | — | — | 0 |
| AS402367US | POLARSEC-NET - PolarSec | — | — | 0 |
| AS1031US | PEER1-1031 - PEER 1031 LLC | — | 1 | 1 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS218507US | CB-AS Christopher Bridgewater | — | 2 | 2 |
| AS4990US | ATTIS-ASN4990 - AT&T Enterprises, LLC | — | — | 0 |
| AS4233US | DWRSCADA - State of Caligornia | — | — | 0 |
| AS5342US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5289US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5123US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS403195US | AS - Mirinetwork | — | — | 0 |
| AS5118US | PHOENIX-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |
| AS23340US | GALAXYGATE-EDGE - GALAXYGATE, LLC | — | 524.3K | 1 |
| AS397525US | ALPHAONE-AS - Alpha1Servers, LLC | — | — | 0 |
| AS2938US | SPRINT-MRN - U.S. Sprint | — | — | 0 |
| AS397699US | TPCASN - TPC GROUP LLC | — | — | 0 |
| AS397615US | RTVI - RTVI | — | — | 0 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS402536US | NETZR - NETZR | — | 1 | 1 |
| AS397235US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS10725US | GENENTECH - Genentech, Inc. | — | 65.8K | 2 |
| AS402690US | PCSD25 - Pocatello | — | — | 0 |
| AS398796US | ABTEX-01 - ABTEX LLC | — | — | 0 |
| AS398605US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |