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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 | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS394631US | SHS-NET-1 - SAMARITAN HEALTH SERVICES | 256 | — | 1 |
| AS401282US | ORIC-REPUBLIC-01 - Old Republic International Corporation | 256 | — | 1 |
| AS20395US | MEDFUSION-LEWISVILLE - Med Fusion, LLC | 256 | — | 1 |
| AS400273US | JSL-76-ASN - Johnstone Supply, LLC | 256 | — | 1 |
| AS398364US | ERICSSON-EFN - Ericsson Inc. | 256 | — | 1 |
| AS396215US | CCBCC-FL - Charlotte County Board of County Commissioners | 256 | — | 1 |
| AS29824US | APPFO-SB - Appfolio, Inc. | 256 | — | 1 |
| AS17194US | LPGAHQ - LPGA | 256 | — | 1 |
| AS18436US | MSPD-ASN - Mohegan Sun Pocono Downs | 256 | — | 1 |
| AS402059US | TRSASN01 - Teachers' Retirement System of the City of New York | 256 | — | 1 |
| AS396530US | DCX-GOODYEAR1 - DCX Goodyear 1, LLC | 256 | — | 1 |
| AS46610US | WARREN-COUNTY-TELECOMMUNICATIONS - Warren County Board of Commissioners | 256 | — | 1 |
| AS401029US | DEIHS-HOST-01 - Deihs Solutions LLC | 256 | 4.1K | 2 |
| AS12011US | TSD-AS-01 - Thompson School District | 256 | — | 1 |
| AS53353US | AKRR - Alaska Railroad Corporation | 256 | — | 1 |
| AS397364US | MSF-USA-01 - Doctors without Borders USA, Inc. | 256 | — | 1 |
| AS31807US | RACKALOHA1 - RackAloha, LLC | 256 | 16 | 2 |
| AS393702US | WISCONSIN-VISION-ASSOCIATES-INC - Wisconsin Vision Associates, Inc. | 256 | — | 1 |
| AS26126US | READING-AREA-COMM-COL - RACC | 256 | — | 1 |
| AS30416US | WCS - Wildlife Conservation Society | 256 | — | 1 |
| AS400910US | MOOSE - Uptown Moose, Inc. | 256 | 65.5K | 2 |
| AS12088US | NABANCARD - North American Bancard, LLC | 256 | — | 1 |
| AS36082US | BIDS - BIDS Trading L.P. | 256 | — | 1 |
| AS400219US | COMMUNITYLTE - Local Pro | 256 | — | 1 |
| AS399284US | LUYS - luYs, Inc. | 256 | 18 | 19 |
| AS396212US | AIMS-COMMUNITY-COLLEGE - Aims Community College | 256 | — | 1 |
| AS396182US | VOIGTINDELECT-A - Voigt Industrial Electronics LLC | 256 | — | 1 |
| AS400609US | LOOPHOLE-LABS - Loophole Labs, Inc. | 256 | — | 1 |
| AS394253US | 1ST-TECH - XPRESSBET INC. | 256 | — | 1 |
| AS46214US | LEFRED - Lefleur Transportation of Tupelo, Inc. | 256 | — | 1 |
| AS394702US | MGE - MADISON GAS AND ELECTRIC FOUNDATION, INC. | 256 | — | 1 |
| AS398924US | ZK-IDENTITY - APPBASE.AI INC. | 256 | — | 1 |
| AS395673US | ALABAMA-LIGHTWAVE - ALABAMA LIGHTWAVE, INC. | 256 | 256 | 2 |
| AS30628US | SRC-AUTOMOTIVE-INC - SRC Automotive Inc. | 256 | — | 1 |
| AS398055US | MPS-303-AS - Mapleton School District No. 1 in the county of Adams & St. | 256 | — | 1 |
| AS36332US | ASN-NA-XIPE2 - Xipe | 256 | 1 | 2 |
| AS394729US | NPIASN - NeoPollard Interactive LLC | 256 | — | 1 |
| AS36261US | CLEAR-155 - Clearbridge Advisors, LLC | 256 | — | 1 |
| AS394238US | GCFA-ASN01 - GENERAL COUNCIL ON FINANCE AND ADMINISTRATION OF THE UNITED METHODIST CHURCH | 256 | — | 1 |
| AS396188US | UMOJO - Umojo, Inc. | 256 | — | 1 |
| AS398439US | GUEST-CHOICE-TV - GUEST CHOICE TV LLC | 256 | 65.5K | 2 |
| AS54273US | PADSUN - The Paducah Sun | 256 | — | 1 |
| AS46089US | AS2-NAVIS - Navis | 256 | — | 1 |
| AS393714US | ASN-SDMCU - San Diego Metropolitan Credit Union | 256 | — | 1 |
| AS396405US | AC225 - Amida Care Inc | 256 | — | 1 |
| AS22899US | UMICO - Utica Mutual Insurance Company | 256 | — | 1 |