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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 1 |
| AS397116US | WMLPNET-AS-01 - Wellesley Municipal Light Plant | 512 | — | 1 |
| AS36796US | WCNX - Waste Connections Inc. | 512 | — | 2 |
| AS18956US | LLAMA-NETWORKS-01 - Llama Networks LLC | 512 | 2 | 4 |
| AS393802US | CARAHSOFT - Carahsoft Technology Corp. | 512 | 1 | 3 |
| AS32038US | ALCORN-LOR-01 - Institutions of Higher Learning | 512 | — | 2 |
| AS401710US | AS-CLOUDMESHLABS - CloudMesh Labs LLC | 512 | 3 | 5 |
| AS394270US | CABI-LLC-1 - Cabi LLC | 512 | — | 2 |
| AS399400US | INSPIRO-RELIA-US - Inspiro Relia US, Inc. | 512 | — | 2 |
| AS399462US | SUMOFIBER-TEXAS - Sumofiber | 512 | — | 2 |
| AS63151US | CPSL-ASN - The Children's Place | 512 | — | 2 |
| AS400242US | SIEMENS-EDC-MIF - Siemens Corporation | 512 | 1 | 3 |
| AS393719US | FIBERLINK - FiberLink | 512 | 65.8K | 4 |
| AS46252US | HIA-TRCY - Hagerty Insurance Agency LLC | 512 | — | 2 |
| AS395133US | MEDQUEST - MedQuest Associates, Inc. | 512 | — | 2 |
| AS18920US | HEI - Hawaiian Electric Industries, Inc. | 512 | — | 2 |
| AS33685US | LOAFHOSTS - Loafhosts | 512 | — | 2 |
| AS399325US | APOG-GMU - Apogee Telecom Inc. | 512 | — | 1 |
| AS399066US | MMS-PUBLIC-AS01 - Massachusetts Medical Society | 512 | — | 2 |
| AS54728US | DATAPLANE - DataPlane.org | 512 | 1 | 3 |
| AS22582US | LUMINEX - Luminex Corporation | 512 | — | 2 |
| AS397429US | SEATTLE-HQ - EXPEDIA, INC | 512 | — | 2 |
| AS32309US | 32309 - ASHS | 512 | — | 2 |
| AS400564US | WESTONREED - Weston Reed, Sole Proprietorship | 512 | 1 | 3 |
| AS394850US | CITY-OF-CAPE-CORAL - City of Cape Coral | 512 | — | 2 |
| AS62877US | AIR-METHODS-ASN-FOR-DENVER-OMAHA-SAN-BERNARDINO - AIR METHODS | 512 | — | 1 |
| AS395860US | NETBLK-CLARIOS - Clarios | 512 | — | 2 |
| AS394776US | RGL-ASN-1 - JACK Entertainment LLC | 512 | — | 2 |
| AS27453US | ASN1 - Systemax Inc. | 512 | — | 2 |
| AS398911US | TERABIT-NETWORKS - Terabit Networks | 512 | — | 1 |
| AS46773US | AS46773 - INTEGRATED DATA PROCESSING, INC. | 512 | — | 2 |
| AS29996US | APORTER - Arnold & Porter Kaye Scholer LLP | 512 | — | 2 |
| AS54204US | WVTM-TV - HEARST CORPORATION | 512 | — | 2 |
| AS19102US | PCI-TW - Patterson Companies, Inc. | 512 | — | 2 |
| AS11760US | CHFA - Connecticut Housing Finance Authority | 512 | — | 2 |
| AS22377US | ATSOL - American Traffic Solutions, Inc | 512 | — | 2 |
| AS6508US | VANTIVA - Vantiva USA Shared Services Inc. | 512 | — | 2 |
| AS53796US | MCH - Miami Children's Hospital | 512 | — | 1 |
| AS30707US | YABOIII - YaBoiii | 512 | — | 2 |
| AS393618US | VCT - Vision Concept Technology, LLC | 512 | — | 2 |
| AS394880US | VITALEDGE - e-Emphasys Technologies Inc | 512 | — | 2 |
| AS40875US | CEMIAMI - CheckAlt Eras Inc | 512 | — | 2 |
| AS394770US | AXIGENT-TECHNOLOGIES-GROUP - Axigent Technologies Group, Inc. | 512 | 65.5K | 3 |
| AS401165US | COLOVORE-01 - Colovore LLC | 512 | — | 2 |
| AS5329US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS401156US | MCB - Metropolitan Commercial Bank | 512 | — | 2 |
| AS397807US | RNT-DS-NET - Reich & Tang Deposit Solutions, LLC | 512 | — | 2 |