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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| WESTMONT-SB - Westmont College |
| 4.1K |
| — |
| 16 |
| AS21525US | AS-SPL - Seattle Public Library | 4.1K | 1 | 2 |
| AS22251US | REMC - Regional Educational Media Center 1 (REMC1) | 4.1K | — | 10 |
| AS10818US | FULLNETOK - Fullnet Communications | 4.1K | — | 1 |
| AS11863US | PLU - Pacific Lutheran University | 4.1K | — | 1 |
| AS55260US | POLK-SCHOOL-DISTRICT - Polk School District | 4.1K | — | 16 |
| AS36861US | AS36861 - RWJBarnabas Health, Inc. | 4.1K | — | 8 |
| AS15144US | XYMMETRIX-XYMMETRIX-LLC - Xymmetrix, LLC | 4.1K | — | 1 |
| AS40389US | BLUERIVER-ASN-0 - Blueriver Networking Services, Inc. | 4.1K | 65.5K | 2 |
| AS25809US | BOSE-CORPORATION-US - Bose Corporation | 4.1K | — | 9 |
| AS55043US | MARCO-TECHNOLOGIES-DC - Marco Technologies LLC | 4.1K | — | 15 |
| AS394841US | CBKASN - CoBank | 4.1K | — | 1 |
| AS53513US | SKSRT - SPRUCE KNOB SENECA ROCKS TELEPHONE, INC. | 4.1K | — | 2 |
| AS53477US | NO - Hilti Incorporated | 4.1K | — | 2 |
| AS30049US | METRO - Metropolitan Transit Authority of Harris County | 4.1K | — | 16 |
| AS54471US | AVH - Androscoggin Valley Hospital | 4.1K | — | 1 |
| AS1830US | GULF-COAST-STATE-COLLEGE - Gulf Coast State College | 4.1K | — | 2 |
| AS17303US | NETWORK-ADVISORS - Disaster Networks, LLC | 4.1K | 12.3K | 16 |
| AS14567US | SPRINGS - Springs Hosting | 4.1K | — | 5 |
| AS54775US | ALLY-FINANCIAL - Ally Financial Inc. | 4.1K | — | 6 |
| AS13924US | AIS-AS - Allied Internet Services | 4.1K | — | 16 |
| AS36396US | SCHOOLCRAFTCOLLEGE - Schoolcraft College | 4.1K | — | 1 |
| AS46248US | LSA-SQL-AZ - Sonora Quest Laboratories | 4.1K | — | 1 |
| AS13793US | T3VOICENET - T3 VoiceNet, LLC. | 4.1K | — | 1 |
| AS3140US | TJHSST-AS - The Thomas Jefferson High School for Science and Tech. | 4.1K | 1 | 2 |
| AS19074US | ASN-01-FBCL - Fort Bend County Libraries | 4.1K | — | 1 |
| AS17270US | NYSTRS-AS1 - New York State Teachers' Retirement System | 4.1K | — | 9 |
| AS31811US | CENTRACOM-MT - Manti Tele Communication Company | 4.1K | 65.5K | 16 |
| AS53638US | ALACHUA-COUNTY-BOCC - Alachua County BOCC | 4.1K | — | 1 |
| AS395368US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 4.1K | — | 1 |
| AS25979US | COMDC-WI - CITY OF MADISON | 4.1K | 1 | 2 |
| AS25955US | PROSKAUER-1 - Proskauer Rose LLP | 4.1K | — | 16 |
| AS14382US | ESC13 - Education Service Center | 4.1K | 1 | 9 |
| AS22906US | TWAI - FRIT | 4.1K | 3 | 15 |
| AS36063US | ITSPEED-0001 - Arrownet, Inc. | 4.1K | 65.5K | 2 |
| AS40198US | MATINETWORKS - MATI | 4.1K | — | 6 |
| AS18708US | HDR-CORP - HDR, Inc. | 4.1K | — | 6 |
| AS22138US | FARM-MARKET - Farm to Market Broadband, LP | 4.1K | — | 1 |
| AS394826US | OREGONTECH - Oregon Tech | 4.1K | — | 1 |
| AS32273US | LIRR - Long Island Rail Road | 4.1K | — | 1 |
| AS46215US | TERRANOVANET-ASN1 - TerraNovaNet | 4.1K | — | 1 |
| AS18556US | SCIF - State Compensation Insurance Fund | 4.1K | — | 2 |
| AS30177US | FIBER-SOUTH-01 - Point Broadband Fiber Holding, LLC | 4.1K | 65.5K | 4 |
| AS15055US | YOURCOLO-ASN-1 - YourColo LLC | 4.1K | — | 1 |
| AS23442US | DESG-WEST - Deluxe Laboratories, Inc. | 4.1K | — | 11 |
| AS401834US | HWSC-AS - Hobart and William Smith Colleges | 4.1K | — | 1 |
| AS27578US | AIRBRIDGE - AirBridge Broadband LLC | 4.1K | 65.5K | 5 |