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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. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.8K |
| — |
| 5 |
| AS21799US | MWDSC - Metropolitan Water District of Southern California | 1.8K | — | 7 |
| AS20352US | LHS - Legacy Health | 1.8K | — | 7 |
| AS397893US | OTZ-1 - OTZ Telecommunications, LLC | 1.8K | — | 7 |
| AS18828US | TRIMBLE-WEST - Trimble, Inc. | 1.8K | — | 6 |
| AS63044US | CMC - Commercial Metals Company | 1.8K | — | 7 |
| AS134537US | ATT-NBE-US - ATT NBE Equinix Seattle | 1.8K | 2 | 9 |
| AS397095US | SETSONLLC - Setson LLC | 1.8K | 4.1K | 6 |
| AS54749US | JASPIN - Jaspin Interactive, Inc. | 1.8K | — | 4 |
| AS2155US | HPINC - HP Inc. | 1.8K | — | 4 |
| AS40059US | CBCCTS-HQNET - Community Blood Center | 1.8K | — | 4 |
| AS397866US | ELN-ATL-HQ - EarthLink | 1.8K | — | 7 |
| AS36680US | NETIFACELLC - Netiface LLC | 1.8K | — | 7 |
| AS398929US | CLL - Loma Linda Connected Community Program | 1.8K | — | 6 |
| AS12156US | AURORA-COLORADO - City of Aurora Colorado | 1.8K | — | 6 |
| AS10587US | FIBERPIPE - Fiberpipe Inc. | 1.8K | 65.5K | 4 |
| AS3653US | HBAL-2-3653 - House of Ben Avraham LLC | 1.8K | 4.1K | 4 |
| AS394142US | AVIDBIT-SLC - AvidBit | 1.8K | — | 7 |
| AS393362US | CDC-01 - Central Dynamics | 1.8K | — | 6 |
| AS400528US | PELLA-FIBER - City of Pella | 1.8K | 65.5K | 4 |
| AS394984US | FDBL-NETWORK - Fragomen, Del Rey, Bernsen & Loewy, LLP | 1.8K | — | 7 |
| AS21778US | NET-DIDATA-NY - Dimension Data North America, Inc. | 1.7K | 1 | 12 |
| AS18898US | VESTA-CORP - Vesta Corporation | 1.7K | — | 7 |
| AS23013US | FORTANIX - Fortanix | 1.6K | — | 20 |
| AS399604US | ES10-08873-01 - EXL SERVICE.COM, LLC | 1.6K | — | 7 |
| AS26912US | NCH-AS1 - Northwest Community Hospital | 1.5K | — | 6 |
| AS32313US | BIGNETWORK - Big Network, Inc. | 1.5K | 65.5K | 4 |
| AS54809US | MCMSYS - MCM Systems, LLC | 1.5K | — | 3 |
| AS397391US | HON-ASN - Hop One Networks LLC | 1.5K | 65.5K | 9 |
| AS19067US | VAILSYS - Vail Systems, Inc. | 1.5K | — | 6 |
| AS398436US | HYPEBEASTSERVERS - hypebeastservers | 1.5K | — | 6 |
| AS6556US | AIRGAPPED - AZSIGNSHOP LLC | 1.5K | — | 6 |
| AS40724US | DEKALB-COUNTY-GEORGIA-GOVERNMENT - DeKalb County, Georgia | 1.5K | — | 6 |
| AS17203US | BMTC-01 - Beresford Municipal Telephone Company | 1.5K | — | 6 |
| AS47074US | AEG - AEG | 1.5K | — | 3 |
| AS62791US | DENOVOVENTURESLLC - DENOVO VENTURES LLC | 1.5K | — | 4 |
| AS212400US | DEDIROOM-LLC DEDIROOM LLC | 1.5K | — | 6 |
| AS17364US | SOKA-UNIVERSITY-OF-AMERICA - Soka University of America | 1.5K | — | 3 |
| AS13839US | P1P3R - Piper Sandler Companies | 1.5K | — | 6 |
| AS46324US | ADVANCED-STREAM-01 - Advanced Stream Inc. | 1.5K | 4.1K | 7 |
| AS393770US | BICOM-US - Bicom Systems | 1.5K | 2 | 7 |
| AS21681US | MPOWER-POWERED-BY-MEC - Mecklenburg Electric Cooperative | 1.5K | 65.5K | 6 |
| AS398561US | CONASERVICES - CONA | 1.5K | — | 4 |
| AS393276US | CEA - Chugach Electric Association, Inc. | 1.5K | — | 6 |
| AS55259US | NEUTRONA-NETWORKS-INTERNATIONAL - Transtelco Inc | 1.5K | — | 5 |
| AS36407US | CERT - Software Engineering Institute | 1.5K | 1 | 4 |
| AS11862US | GSIC-NV - Radial, Inc. | 1.5K | — | 6 |