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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 1.3K |
| — |
| 5 |
| AS54420US | COCC-ISP1 - COCC | 1.3K | — | 5 |
| AS397582US | WOW - WOW-World of Wireless | 1.3K | — | 5 |
| AS397689US | C1CX-VA - C1CX | 1.3K | — | 4 |
| AS12250US | EHSC - EDWARD HEALTH SERVICE CORP | 1.3K | — | 5 |
| AS53467US | SRH - Skagit Regional Health | 1.3K | — | 3 |
| AS36857US | FREUDE - Freudenberg-NOK General Parternership | 1.3K | — | 2 |
| AS1225US | NTTA-1225 - NTT America, Inc. | 1.3K | 1 | 3 |
| AS47069US | USKVM - USKVM LLC | 1.3K | 65.5K | 3 |
| AS16507US | DELWEBBCORP - Del Webb Corporation | 1.3K | — | 2 |
| AS399949US | AS-CYLOGIC - CYLOGIC INC | 1.3K | — | 2 |
| AS393247US | PARKVIEW-HEALTH - Parkview Hospital | 1.3K | — | 2 |
| AS30643US | TTXCOMPANY - TTX Company | 1.3K | — | 5 |
| AS13691US | MCC-EDU - Metropolitan Community College | 1.3K | — | 2 |
| AS35967US | LAVATRADING-CITI01 - Citigroup Inc. | 1.3K | — | 5 |
| AS64290US | WISP10175 - Server ISP | 1.3K | — | 2 |
| AS62664US | UNITEDTELEPORTS - UNITED TELEPORTS, INC. | 1.3K | — | 5 |
| AS4366US | GE-AMC - General Electric Company | 1.3K | — | 5 |
| AS63027US | LANICOM-NET - Lanicom, LLC | 1.3K | 4.1K | 6 |
| AS30697US | IVISION - iVision, Inc. | 1.3K | — | 2 |
| AS53506US | TASTYWORKS-01 - tastyworks, Inc. | 1.3K | — | 2 |
| AS31772US | FCSA-AS-2 - Farm Credit Services of America | 1.3K | — | 3 |
| AS396010US | FTC-ASN1 - Franklin Telephone Company, Inc | 1.3K | — | 4 |
| AS7310US | GARTNERGROUP - Gartner Group | 1.3K | — | 5 |
| AS14649US | COSI-US - Contengent Online Systems Inc | 1.3K | — | 2 |
| AS17178US | MOTIONINDUSTRIES - Motion Industries, Inc. | 1.3K | — | 5 |
| AS399765US | FASNET-SERVICES - FasNET Services LLC | 1.3K | 320 | 6 |
| AS401489US | XGLSOLUTIONS - Xglsolutions LLC | 1.3K | 256 | 6 |
| AS6492US | PCCD - Palomar Community College District | 1.3K | 1 | 6 |
| AS394489US | LAMINAR-NETWORKS-01 - Laminar Networks LLC | 1.3K | 4.1K | 3 |
| AS399408US | NUBROADWACA - COAXIAL NETWORKS INC | 1.3K | 1 | 5 |
| AS207063US | kentik-eu Kentik Technologies, Inc. | 1.3K | 2 | 4 |
| AS46614US | SENCI-46614 - Sencinet LatAm (Nevada) Corp. | 1.3K | — | 5 |
| AS400155US | MHTELE-01 - Manchester-Hartland Telephone Company | 1.3K | — | 4 |
| AS30046US | EIC - Erie Indemnity Company | 1.3K | — | 5 |
| AS46537US | ELMDC - Elm Datacenter LLC | 1.3K | — | 5 |
| AS46340US | HR2 - HireRight LLC | 1.3K | — | 5 |
| AS402567US | THANKYOU-AI - 39 | 1.3K | 1 | 6 |
| AS20066US | MSC-SJ-HQ - Supermicro Computer | 1.3K | — | 5 |
| AS11661US | SEMICUBIC - Semicubic Systems LLC | 1.3K | 16 | 3 |
| AS32776US | SMART-CITY-CHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 3 |
| AS53897US | SYNOVUS-MOONRD - Synovus Financial Corp | 1.3K | — | 4 |
| AS63168US | TRP-COLORADO-SPRINGS - T. Rowe Price Associates, INC. | 1.3K | — | 5 |
| AS33714US | HBCS-NC-AS1 - Hospital Billing and Collection Service, LTD | 1.3K | — | 2 |
| AS55064US | ARISTAASN1 - Arista Networks, Inc. | 1.3K | 4 | 9 |
| AS6269US | ATT-INTERNET2 - AT&T Enterprises, LLC | 1.3K | — | 2 |
| AS402823US | SILOCOMM-AS-1 - Silo | 1.3K | — | 2 |