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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS393840US | CAG-AS01 - Chapman Automotive Group | 256 | — | 1 |
| AS63433US | BRIGHTWOOD CAPITAL ASN - Brightwood Capital Advisors, LLC | 256 | — | 1 |
| AS19929US | VASTCOMM - VAST COMMUNICATIONS LLC | 256 | — | 1 |
| AS26226US | LOYOL-1-ASN - Loyola High School of Los Angeles | 256 | — | 1 |
| AS218880US | Turbyte Turbyte LLC | 256 | — | 1 |
| AS401471US | TICKETNETWORK-DC-01 - TicketNetwork Inc. | 256 | — | 1 |
| AS395010US | OPC-PHX - Oracle Corporation | 256 | — | 1 |
| AS47040US | DELTAPRODUCTS-AS - Delta Products Corporation | 256 | — | 1 |
| AS63135US | TABOR-COLLEGE-01 - Tabor College, Inc. | 256 | — | 1 |
| AS393876US | AS-PMGAA - Phoenix-Mesa Gateway Airport Authority | 256 | — | 1 |
| AS401185US | EVOLUTIONFIBER-FL - Evolution Fiber LLC | 256 | — | 1 |
| AS397794US | APPLAUSE-MARLBORO - Applause | 256 | — | 1 |
| AS20462US | OPULENT-CLOUD - Opulent Cloud | 256 | — | 1 |
| AS394683US | ACHE - Arkansas Colleges of Health Education | 256 | — | 1 |
| AS402132US | MIXHITS-RADIO - Mixhits Radio, LLC | 256 | — | 1 |
| AS54016US | DN-VA - Diebold Nixdorf, Incorporated | 256 | — | 1 |
| AS22638US | PHILORCH-ASN - The Philadelphia Orchestra Association | 256 | — | 1 |
| AS394525US | DF-INTERNET-TX - Dean Foods Company | 256 | — | 1 |
| AS398187US | NWTS-FERNDALE-01 - NW Technology | 256 | — | 1 |
| AS400801US | BISTATEDEVELOPMENT - Bi-State Development Agency of the Missouri-Illinois Metropolitan District | 256 | — | 1 |
| AS40255US | AS40255 - Brigade Capital Management, LP | 256 | — | 1 |
| AS394355US | MGRM - MGRM Pinnacle, Inc. | 256 | — | 1 |
| AS6531US | COFFEYCAN - Burlington USD #244 | 256 | — | 1 |
| AS36527US | RINCON-WIRELESS - Rincon Wireless | 256 | — | 1 |
| AS46245US | NIFCO-ASN-01 - NIFCO America | 256 | — | 1 |
| AS11527US | X0R - Xproxies | 256 | 65.5K | 2 |
| AS40704US | DLFI - Delphi Capital Management, Inc. | 256 | — | 1 |
| AS400974US | HMG-MA-01 - Kia America, Inc. | 256 | — | 1 |
| AS26738US | DEERFIELD - Deerfield Partners, L.P. | 256 | — | 1 |
| AS23055US | CITYOFNAMPA - City of Nampa | 256 | — | 1 |
| AS30037US | AS30037 - Fiserv Solutions, LLC | 256 | 1 | 2 |
| AS36774US | AS-36774 - Intuit Inc. | 256 | — | 1 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |
| AS14936US | CLOUDHQDATACENTERS - CloudHQ, LLC | 256 | — | 1 |
| AS401340US | HCIFIRSTASNAME - Hussey Communications Inc | 256 | — | 1 |
| AS402674US | GTRANSLATE-AS1 - GTRANSLATE | 256 | — | 1 |
| AS62912US | VICTORIA-COLLEGE - Victoria College | 256 | — | 1 |
| AS402546US | RACKBYTE - RackByte | 256 | 65.5K | 3 |
| AS394028US | DLVR - DLVR, Inc. | 256 | — | 1 |
| AS11881US | CNANDC-01 - CNA National Warranty Corporation | 256 | — | 1 |
| AS23347US | ZYC - ZYC Network LLC | 256 | 263 | 6 |
| AS401438US | NETFABRIC-01 - NetFabric, LLC | 256 | — | 1 |
| AS397791US | PROASSURANCE - ProAssurance Corporation | 256 | — | 1 |
| AS395284US | SHENKMANCAPITAL - Shenkman Capital Management, Inc. | 256 | — | 1 |
| AS398881US | SFG-199-33-226 - SFG, LLC | 256 | — | 1 |
| AS32764US | CPN - CSN Support Services | 256 | 1 | 2 |