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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 | 24,632 |
| 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.
32,210 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 | 4,359 |
| 256 |
| 1 |
| 2 |
| AS397371US | HCDE-TEXAS - Harris County Department of Education Public Facil | 256 | — | 1 |
| AS54558US | HONL-621 - Healthcare Outsourcing Network, L.L.C | 256 | — | 1 |
| AS21903US | ARNHEM-01 - Arnhem Networks LLC | 256 | 51 | 9 |
| AS22826US | CALIPER - Caliper Corporation | 256 | — | 1 |
| AS18696US | ETHNOS360-USHO - ETHNOS360, INC. | 256 | 1 | 2 |
| AS54007US | WBT-ORL - Wycliffe Bible Translators, Inc | 256 | — | 1 |
| AS3515US | DSI-WR - RTX BBN Technologies, Inc. | 256 | — | 1 |
| AS397392US | BJWSA-AS - BJWSA | 256 | — | 1 |
| AS46165US | RESOUND GENISYS-PUBLIC - Resound Networks, LLC | 256 | — | 1 |
| AS54730US | BSA-ASN1 - BS&A Software, LLC | 256 | — | 1 |
| AS32728US | PALOMA-PARTNERS - Paloma Partners | 256 | — | 1 |
| AS40368US | NIXCON-GROUP-LLC - Nixcon | 256 | — | 1 |
| AS39969US | 4FRONT-PRI - 4Front Credit Union | 256 | — | 1 |
| AS12286US | SOUTHTECH - South Tech LLC | 256 | 256 | 2 |
| AS18503US | CTRL-IT-ASN - Concept Imagineering LLC | 256 | — | 1 |
| AS32892US | SOTELCO-01 - Southern Telecommunications Company, LLC. | 256 | — | 1 |
| AS402284US | LEWISNY-NET - Lewis County, New York | 256 | — | 1 |
| AS400474US | GHOSTFIBER - GhostFiber | 256 | 4.1K | 2 |
| AS216242US | JUTLEY-AS Jeremy Utley | 256 | 256 | 5 |
| AS40094US | SOUTHCENTRAL-FOUNDATION-01 - Southcentral Foundation | 256 | — | 1 |
| AS395010US | OPC-PHX - Oracle Corporation | 256 | — | 1 |
| AS54281US | WTA-WV - Wild Turkey Acres WV LLC | 256 | 1 | 2 |
| AS11884US | IWPBGP - Insteel Industries, Inc. | 256 | — | 1 |
| AS398235US | BLUE-LOBSTER - Blue Lobster Inc. | 256 | — | 1 |
| AS20078US | PIM-ASN - Pzena Investment Management, L.L.C. | 256 | — | 1 |
| AS53465US | ANSYS - ANSYS, INC | 256 | — | 1 |
| AS63073US | UT-MAIN - The University of Tampa | 256 | — | 1 |
| AS58202US | NoPKT NoPKT LLC | 256 | 4 | 5 |
| AS400652US | KRV-GSH-01 - Keystone RV Company | 256 | — | 1 |
| AS511US | PRISMA HEALTH - Prisma Health | 256 | — | 1 |
| AS397190US | WSP-DIGITAL - WSP | 256 | 1 | 2 |
| AS32395US | LNFCU-01 - L & N Federal Credit Union | 256 | — | 1 |
| AS30611US | COMPASS-ROSE-LLC - Compass Rose Asset Management, LP | 256 | — | 1 |
| AS394183US | TRUSTMARK-BANK - Trustmark Bank | 256 | — | 1 |
| AS394442US | PCBF-NYC1 - Pearl Capital Business Funding LLC | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS55266US | FRMC01 - Firelands Regional Medical Center | 256 | — | 1 |
| AS395999US | KIM-199-120-191-0 - Kimball International, Inc. | 256 | — | 1 |
| AS396907US | XANTERRA - XANTERRA Inc. | 256 | — | 1 |
| AS40657US | OANDA-1 - OANDA Corporation | 256 | — | 1 |
| AS400649US | APOG-UTD - Apogee Telecom Inc. | 256 | — | 1 |
| AS394052US | TUSCANO-NET - W.N. Tuscano Agency | 256 | — | 1 |
| AS53438US | VB-ASN-01 - Vantage Bank | 256 | — | 1 |
| AS32532US | KMC-37-ASN - Kuakini Medical Center | 256 | — | 1 |
| AS40118US | THIRD-POINT-LLC - Third Point LLC | 256 | — | 1 |
| AS53888US | RPA-ASN - RUBIN POSTAER AND ASSOCIATES | 256 | — | 1 |