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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 16.6K |
| 65.5K |
| 24 |
| AS14763US | STKATE - St. Catherine University | 16.6K | — | 3 |
| AS23167US | BAYER-ARCH - Bayer Corporation | 16.6K | — | 20 |
| AS17373US | MCI-COV - Verizon Business | 16.6K | — | 5 |
| AS54163US | AHOSTING - AHOSTING | 16.6K | — | 2 |
| AS14131US | DATAYARD - DataYard | 16.6K | — | 3 |
| AS19413US | ROANOKE-CONNECT-ASN-1 - Roanoke Connect | 16.6K | — | 24 |
| AS62658US | WYAN-AS - City of Wyandotte | 16.6K | — | 14 |
| AS398787US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 16.6K | — | 31 |
| AS21545US | KCOENET - Kings County Office of Education | 16.6K | — | 4 |
| AS22736US | CPS - Cincinnati | 16.6K | — | 2 |
| AS40004US | CONRAD - CONRADIT, LLC | 16.6K | — | 4 |
| AS393875US | UMO-AS - University of Mount Olive, Inc. | 16.6K | 1 | 3 |
| AS40403US | RCS-ASN - Rocks Computer Services, LLC | 16.6K | — | 5 |
| AS26097US | LABYRINTH - Labyrinth Solutions Inc | 16.6K | — | 30 |
| AS32907US | STTHOMAS - University of St. Thomas | 16.6K | — | 2 |
| AS27530US | CORNEJO - IBM | 16.6K | — | 2 |
| AS14576US | HOSTING-SOLUTIONS - Hosting Solution Ltd. | 16.6K | 2.1M | 65 |
| AS7091US | VIANET-ASN - Next Level Connect | 16.6K | — | 2 |
| AS32719US | BEPC-AS - Basin Electric Power Coop | 16.6K | 65.5K | 27 |
| AS394972US | VALLEY-COMMUNICATIONS - Valley Electric Association | 16.6K | — | 45 |
| AS55120US | TVIFIBER - Tallahatchie Valley Internet Services, LLC | 16.6K | — | 4 |
| AS10732US | TIERRANET - TierraNet Inc. | 16.6K | — | 3 |
| AS46969US | STILLWATER-SCHOOLS-ISD834 - Stillwater Area Public Schools | 16.6K | 65.8K | 4 |
| AS53703US | KWIKOM - KwiKom Communications | 16.6K | 131.1K | 10 |
| AS62523US | CIRBN-LLC - CIRBN, LLC | 16.6K | 65.5K | 19 |
| AS46722US | BRYANT-UNIVERSITY - Bryant University | 16.6K | — | 3 |
| AS394413US | APOG-EARLHAM - Apogee Telecom Inc. | 16.6K | — | 2 |
| AS6419US | IDD - IDD Enterprises, LP | 16.6K | — | 65 |
| AS46426US | HART-COMMUNICATIONS - HART COMMUNICATIONS, INC. | 16.6K | — | 16 |
| AS4546US | SPGI-AS - S&P Global Inc. | 16.7K | — | 56 |
| AS63242US | AS-CMN-LS - Metronet | 16.9K | — | 17 |
| AS38551US | JPMORGAN-TRANSIT-AS-AU - JPMORGAN Australia | 16.9K | 8 | 10 |
| AS22703US | ANTHEM - Elevance Health, Inc. | 16.9K | — | 13 |
| AS23376US | EN-23376 - EllumNet LLC | 16.9K | 131.1K | 10 |
| AS11687US | CITY-OF-HOPE - City of Hope Medical Center | 16.9K | — | 4 |
| AS12247US | META-SOLUTIONS - Tri-Rivers Educational Computer Association | 16.9K | — | 11 |
| AS22944US | KCTCS-INTERNET2 - Kentucky Community and Technical College System | 16.9K | — | 3 |
| AS36473US | CONTE-25-BLA-RST - Contegix | 16.9K | 196.6K | 17 |
| AS33138US | AS-NYPD - New York City Police Department | 16.9K | — | 3 |
| AS47028US | TVC-ASN - Twin Valley Communications Inc | 16.9K | — | 10 |
| AS402159US | VALLEY FIBERCOM - Valley FiberCom | 16.9K | — | 24 |
| AS21623US | SPACELINK - Spacelink Systems | 16.9K | 65.5K | 5 |
| AS21617US | NARA - National Archives and Records Administration | 16.9K | — | 5 |
| AS396443US | WESTERN-IOWA-NETWORKS-396443 - Western Iowa Networks | 16.9K | 65.5K | 61 |
| AS399647US | RUMBLE - Rumble USA Inc. | 16.9K | 4.1K | 25 |
| AS23154US | SANMINA-SCI - Sanmina-SCI Corporation | 16.9K | — | 61 |