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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 |
| 1.3K |
| — |
| 5 |
| AS402281US | VIX - Vesionix LLC | 1.3K | — | 5 |
| AS401382US | ZENIX-CLOUD-AS1 - Zenix Solutions, LLC | 1.3K | 256 | 3 |
| AS46373US | CONCENTUSNET - Concentus.net | 1.3K | — | 5 |
| AS10899US | CARIS LIFE SCIENCES - Caris Life Sciences | 1.3K | — | 4 |
| AS19393US | ROBERTS-COMMUNICATIONS-NETWORK - Roberts Communications Network, LLC | 1.3K | — | 4 |
| AS21718US | NW-NATURAL-GAS - Northwest Natural Gas | 1.3K | — | 5 |
| AS53897US | SYNOVUS-MOONRD - Synovus Financial Corp | 1.3K | — | 4 |
| AS48231US | CRENET-AS CRE Network, LLC | 1.3K | 1.5K | 12 |
| AS23046US | INFINITE-CAMPUS-GA - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS14951US | VMCNET - Vulcan Materials Company | 1.3K | — | 5 |
| AS20066US | MSC-SJ-HQ - Supermicro Computer | 1.3K | — | 5 |
| AS20334US | EPICTOUCH-AS-1 - Epic Touch Co. | 1.3K | — | 5 |
| AS397654US | 46LABS-IAD1 - 46 Labs LLC | 1.3K | — | 4 |
| AS46537US | ELMDC - Elm Datacenter LLC | 1.3K | — | 5 |
| AS397934US | AAILLC-1 - Latitude AI LLC | 1.3K | — | 5 |
| AS398044US | FIBERFED - Trinity Network Solutions | 1.3K | 4.1K | 6 |
| AS395222US | HOSTIOUS PRIMARY - Hostious LLC | 1.3K | — | 5 |
| AS54531US | LPCH-PA - LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD | 1.3K | — | 2 |
| AS26187US | ADVENTURECK - ADVENTURECK | 1.3K | — | 5 |
| AS6492US | PCCD - Palomar Community College District | 1.3K | 1 | 6 |
| AS30346US | TBD - Sumitomo Mitsui Banking Corporation | 1.3K | — | 5 |
| AS31865US | SWKAS - THE STANLEY WORKS | 1.3K | — | 2 |
| AS400456US | DREAMWIRE - ITDreamwire | 1.3K | — | 2 |
| AS18643US | SMART-CITY-TACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS10946US | ASN-NTF - Network Time Foundation, Inc. | 1.3K | — | 2 |
| AS398065US | FRITZ-LABS - Fritz Lab LLC | 1.3K | 16 | 5 |
| AS216093US | SERVERGUARD Root Localhost LLC | 1.3K | 4 | 9 |
| AS206533US | CentrixNodes CentrixNodes LLC | 1.3K | 1 | 6 |
| AS63168US | TRP-COLORADO-SPRINGS - T. Rowe Price Associates, INC. | 1.3K | — | 5 |
| AS63138US | SAC-COLO1 - Blue Shield of California | 1.3K | — | 5 |
| AS400468US | AXIOGIC - Axiogic | 1.3K | — | 5 |
| AS54430US | CRL-CORP - Clinical Reference Laboratory | 1.3K | — | 4 |
| AS4539US | SEL-AS - Schweitzer Engineering Laboratories, Inc. | 1.3K | — | 2 |
| AS54159US | XETRANETWORKS - Xetra Networks Inc. | 1.3K | — | 4 |
| AS11476US | PCT-01 - PRIME CARE TECHNOLOGIES, INC. | 1.3K | — | 2 |
| AS394451US | EHS-AS-001 - Elliot Health System | 1.3K | — | 2 |
| AS36593US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 1.3K | — | 3 |
| AS16925US | COSMB-MAIN-NET-00 - Cloud Optimized SMB LLC | 1.3K | 4.7K | 10 |
| AS39945US | NUSPIRE - Nuspire Communications | 1.3K | — | 4 |
| AS55171US | MTS-HEALTHCARE - MTS Healthcare | 1.3K | — | 4 |
| AS6534US | OCEANIC-CABLE - Charter Communications Inc | 1.3K | — | 2 |
| AS11661US | SEMICUBIC - Semicubic Systems LLC | 1.3K | 16 | 3 |
| AS40615US | BCHD-AS-1 - University Health System | 1.3K | — | 5 |
| AS395055US | DOCUSIGN-CORP-IT - DocuSign | 1.3K | — | 2 |
| AS393650US | CCBCMD - CCBC | 1.3K | — | 2 |
| AS401489US | XGLSOLUTIONS - Xglsolutions LLC | 1.3K | 256 | 6 |