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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| 8.2K |
| — |
| 2 |
| AS41436US | CloudWebManage-EU Kamatera Inc | 8.2K | 2 | 34 |
| AS8131US | PEPBOYS - Pep Boys | 8.2K | — | 2 |
| AS393288US | ZULUINTERNET1 - Zulu Internet, Inc. | 8.2K | — | 17 |
| AS29944US | DATABANK-LATISYS - Latisys-Ashburn, LLC | 8.2K | — | 1 |
| AS54048US | CVIN - Vast Networks | 8.2K | — | 8 |
| AS11595US | NETSONIC - Netsonic | 8.2K | — | 2 |
| AS393393US | AISD-AS - Amarillo ISD | 8.2K | — | 17 |
| AS3834US | PTNET - PT Networking, LLC | 8.2K | 1 | 2 |
| AS40284US | GSCBN - Glenwood Springs Community Broadband Network | 8.2K | — | 20 |
| AS15114US | HOSTDEPOT-ASN - Host Depot, Inc. | 8.2K | — | 1 |
| AS32614US | HDISS-NET - High Desert Internet Services | 8.2K | — | 8 |
| AS393289US | MERCERU-GA-ASN - Mercer University | 8.2K | — | 1 |
| AS397103US | WAVEFLY-AS397103 - REV | 8.2K | — | 3 |
| AS54291US | SJH-ASN01 - Inspira Medical Centers, Inc. | 8.2K | — | 2 |
| AS394712US | NYSOSC - New York State Office of the State Comptroller | 8.2K | — | 1 |
| AS7146US | GABN - Georgia Business Net, Inc | 8.2K | — | 1 |
| AS26748US | AS-HSHS - Hospital Sisters Health Systems | 8.2K | — | 1 |
| AS13866US | CCOUNTRY - Computer Country | 8.2K | 4.1K | 8 |
| AS19616US | ACCESS-OHIO - ACCESS | 8.2K | — | 3 |
| AS26247US | HCCA - Hamilton-Clermont Cooperative Assn. | 8.2K | — | 18 |
| AS23497US | NCWCOM - NORTH COAST WIRELESS COMMUNICATIONS LLC | 8.2K | — | 32 |
| AS394744US | RMC-ASN1 - Randolph-Macon College | 8.2K | — | 1 |
| AS11919US | LORAL-SKYNET-AR - Telesat Network Services Inc | 8.2K | — | 1 |
| AS54616US | SSU-173244000000-19 - Salem State University | 8.2K | — | 1 |
| AS129US | DNIC-AS-00129 - United States Department of Defense (DoD) | 8.2K | — | 16 |
| AS27008US | BDC - BendTel | 8.2K | 65.5K | 2 |
| AS395685US | ONTARIO-TELEPHONE-COMPANY - Ontario Telephone Company Inc | 8.2K | — | 6 |
| AS19872US | CUSTOM-76 - Point Broadband Fiber Holding, LLC | 8.2K | 65.5K | 2 |
| AS30462US | NEXGEN - NexGen Integrated Communications LLC | 8.2K | — | 8 |
| AS400869US | BETHLEHEM-AREA-SCHOOL-DISTRICT - Bethlehem Area School District | 8.2K | — | 1 |
| AS32736US | INFORTECH-001 - Infortech Corporation | 8.2K | — | 32 |
| AS398007US | TXBIOMED-1 - Texas Biomedical Research Institute | 8.2K | — | 3 |
| AS32162US | CLIU21 - Carbon Lehigh Intermediate Unit 21 | 8.2K | — | 2 |
| AS36094US | WORCESTER-STATE-COLLEGE - Worcester State University | 8.2K | — | 1 |
| AS31893US | H5COLO - H5 Colo Associates LLC | 8.2K | — | 4 |
| AS33563US | THEMETHODISTHOSPITAL-HOUSTON - The Methodist Hospital | 8.2K | — | 4 |
| AS27166US | CONTERRA - Conterra | 8.2K | — | 1 |
| AS8082US | WORLDSITE - Worldsite Networks | 8.2K | — | 1 |
| AS27195US | CAVERN-TECHNOLOGIES - EPIC Alliance, Inc. | 8.2K | 65.5K | 24 |
| AS19082US | EVERESTBROADBAND - Everest BBN, Inc. | 8.2K | — | 1 |
| AS11017US | CPN - CSN Support Services | 8.2K | 42 | 17 |
| AS13628US | CENCORA-INTERNET - AMERISOURCEBERGEN | 8.2K | — | 13 |
| AS54813US | GREYSTONE-POWER - GREYSTONE POWER CORPORATION, AN ELECTRIC MEMBERSHIP CORPORATION | 8.2K | — | 1 |
| AS19945US | GRANBURYISD - Granbury Independent School District | 8.2K | 64 | 2 |
| AS30524US | NEXGEN-NETWORKS - NEXGEN NETWORKS | 8.2K | — | 18 |
| AS14157US | GENWORTH-MI - GENWORTH FINANCIAL, Inc. | 8.2K | 260 | 6 |