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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 |
| AS7817US | SURFNET - Surfnet | — | — | 0 |
| AS7777US | VIX2 - Mail Abuse Prevention System LLC | — | — | 0 |
| AS397117US | MEDIUM-01 - A Medium Corporation | — | — | 0 |
| AS397083US | CEL-NET1-V4 - Chicopee Electric Light | — | — | 0 |
| AS399624US | LECTRON - Lectron | — | — | 0 |
| AS398534US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS397798US | MSGTEL - MSG Tel, Inc. | — | — | 0 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397267US | MURATA-MEHQ - Murata Electronics North America, Inc. | — | — | 0 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS395547US | WABCTVNET-7LS - WABC-TV/EABC-TV | — | — | 0 |
| AS396595US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS46945US | NUSTAR-ENERGY - Energy Transfer LP | — | — | 0 |
| AS40935US | DATACATE-AS3 - Datacate Inc. | — | — | 0 |
| AS40344US | DFW-COLO-1 - Check Point Software Technologies, Inc. | — | — | 0 |
| AS40578US | VANGUARDHEALTHSYSTEMS-PHAZ - Vanguard Health Systems | — | — | 0 |
| AS40158US | NCSD-01 - Department of Homeland Security | — | — | 0 |
| AS40155US | AS40155 - Fin Topco (US), Inc. | — | — | 0 |
| AS200502US | DMITRY-ILYEVSKIY DMITRY ILYEVSKIY | — | — | 0 |
| AS46656US | MEETME-1 - MeetMe, Inc. | — | — | 0 |
| AS46942US | IHS-VWC - IHS Global, Inc. | — | — | 0 |
| AS40574US | CVLAB-OH-AS-01 - Steege IT Services LLC | — | — | 0 |
| AS393346US | NJ-COLL-INET - City National Bank | — | — | 0 |
| AS393489US | RURAL-TEXAS-BROADBAND - ADT Systems, Inc. | — | — | 0 |
| AS219416US | SERVERCOMP-ORG-MNT ServerComp Inc. | — | — | 0 |
| AS219333US | PEERLINK PEERLINK LLC | — | — | 0 |
| AS394014US | SSASN-01 - Solutionstar Settlement Service LLC | — | — | 0 |
| AS394686US | CL-200 - Clearent LLC | — | — | 0 |
| AS394266US | LITFIBER - QxC Communications, Inc. | — | — | 0 |
| AS19468US | ELYSIA-2 - Valex Cloud LLC | — | — | 0 |
| AS54229US | AIRBNB - Airbnb, Inc. | — | — | 0 |
| AS40778US | ICI-NYC - Incomm | — | — | 0 |
| AS54604US | DCN-IP01 - Dakota Cloud Networks, LLC | — | — | 0 |
| AS54615US | ACLENS-PROD - Arlington Contact Lens Service, Inc | — | — | 0 |
| AS53253US | NINJA-MS-CACHE - Ninja-IX Corporation | — | — | 0 |
| AS50236US | Vertexlink_Communications VertexLink Inc. | — | — | 0 |
| AS53395US | INDIAN-ELECTRIC-COOPERATIVE-01 - Indian Electric Cooperative, Inc. | — | — | 0 |
| AS53433US | YODLE-AS-1 - Web.com Group, Inc. | — | — | 0 |
| AS399822US | FARWEST-STEEL-CORP - Farwest Steel Corporation | — | — | 0 |
| AS46418US | BAKER-AUBURNHILLS - Baker College | — | — | 0 |
| AS399316US | SUNRISEFL-ASN-101 - City of Sunrise | — | — | 0 |
| AS399245US | GRAND-TRAVERSE-COUNTY - Grand Traverse County | — | — | 0 |
| AS398253US | KYOYA-HNLWS-MEZZANINE-01 - Sheraton Waikiki Beach Resort | — | — | 0 |
| AS394847US | AFS-4 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS398526US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |