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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 | 25,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| 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.
32,214 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. | 44.9M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 8.2K |
| — |
| 1 |
| AS53460US | MONCRETELCO - Mon-Cre Telephone Cooperative, Inc. | 8.2K | — | 4 |
| AS20382US | OANET - OA.NET | 8.2K | 65.5K | 2 |
| AS18914US | ETS-TELCO - ETS TELECOM | 8.2K | 131.1K | 16 |
| AS13409US | PDX - PORTLAND INTERNETWORKS | 8.2K | — | 2 |
| AS63100US | CTCI - Carnegie Telephone Company, Inc. | 8.2K | — | 6 |
| AS46701US | STATE-OF-INDIANA-IOT4 - Indiana Office of Technology | 8.2K | 1 | 5 |
| AS21555US | LHTC - LAUREL HIGHLAND TELEPHONE COMPANY | 8.2K | — | 4 |
| AS14773US | LANLEB-IU13 - Lancaster Lebanon Intermediate Unit 13 | 8.2K | 66.1K | 17 |
| AS16574US | GTEK-COMMUNICATIONS - Gtek Computers LLC | 8.2K | — | 32 |
| AS14264US | SAU-AS - Southern Adventist University | 8.2K | 1 | 3 |
| AS10953US | CEG - CONSTELLATION ENERGY GENERATION, LLC | 8.2K | — | 32 |
| AS402618US | TRICO-COOP-AZ - Trico | 8.2K | 65.5K | 4 |
| AS13882US | HFI-18-13882 - HARTFORD FIRE INSURANCE COMPANY | 8.2K | — | 26 |
| AS47003US | ALPS-AS-1 - Littleton Public Schools | 8.2K | — | 1 |
| AS395795US | CTC - Cherokee Telephone Company | 8.2K | 65.5K | 6 |
| AS393705US | LYTEFIBER-01 - Lyte Fiber, LLC | 8.2K | 65.5K | 2 |
| AS46473US | SIMPLEFIBER - SimpleFiber Communications LLC | 8.2K | — | 2 |
| AS19945US | GRANBURYISD - Granbury Independent School District | 8.2K | 64 | 2 |
| AS31893US | H5COLO - H5 Colo Associates LLC | 8.2K | — | 4 |
| AS27400US | CLEARFLY - Clearfly Communications | 8.2K | 65.5K | 9 |
| AS23497US | NCWCOM - NORTH COAST WIRELESS COMMUNICATIONS LLC | 8.2K | — | 32 |
| AS394744US | RMC-ASN1 - Randolph-Macon College | 8.2K | — | 1 |
| AS22297US | OPTI9-CANADA - Jelecos LLC | 8.2K | 65.5K | 30 |
| AS54291US | SJH-ASN01 - Inspira Medical Centers, Inc. | 8.2K | — | 2 |
| AS7146US | GABN - Georgia Business Net, Inc | 8.2K | — | 1 |
| AS40944US | MASSCOL - Mass College of Liberal Arts | 8.2K | — | 3 |
| AS22601US | BONNPOWERNET - Bonneville Power Administration | 8.2K | 260 | 7 |
| AS33563US | THEMETHODISTHOSPITAL-HOUSTON - The Methodist Hospital | 8.2K | — | 4 |
| AS10564US | TCSI - ROCKET SOFTWARE INC | 8.2K | 256 | 18 |
| AS397057US | FDEC-FIBER - Forked Deer Electric Cooperative, Inc. | 8.2K | — | 2 |
| AS19082US | EVERESTBROADBAND - Everest BBN, Inc. | 8.2K | — | 1 |
| AS14559US | BRTCC - Ballard Rural Telephone Cooperative Corporation Inc. | 8.2K | — | 2 |
| AS26894US | NOACSC-AS - Northwest Ohio Area Computer Services Cooperative | 8.2K | — | 1 |
| AS27195US | CAVERN-TECHNOLOGIES - EPIC Alliance, Inc. | 8.2K | 65.5K | 24 |
| AS395685US | ONTARIO-TELEPHONE-COMPANY - Ontario Telephone Company Inc | 8.2K | — | 6 |
| AS12222US | AKAMAI - Akamai Technologies, Inc. | 8.2K | 115 | 146 |
| AS398007US | TXBIOMED-1 - Texas Biomedical Research Institute | 8.2K | — | 3 |
| AS27192US | COLI-NET - Chain O Lakes Internet | 8.2K | — | 3 |
| AS36094US | WORCESTER-STATE-COLLEGE - Worcester State University | 8.2K | — | 1 |
| AS393288US | ZULUINTERNET1 - Zulu Internet, Inc. | 8.2K | — | 17 |
| AS14157US | GENWORTH-MI - GENWORTH FINANCIAL, Inc. | 8.2K | 260 | 6 |
| AS23030US | UNIVERSITY-OF-HOUSTON---DOWNTOWN - University of Houston - Downtown | 8.2K | — | 1 |
| AS26748US | AS-HSHS - Hospital Sisters Health Systems | 8.2K | — | 1 |
| AS32736US | INFORTECH-001 - Infortech Corporation | 8.2K | — | 32 |
| AS31997US | ZONEALARM-COM - Check Point Software Technologies, Inc. | 8.2K | 1 | 30 |
| AS54616US | SSU-173244000000-19 - Salem State University | 8.2K | — | 1 |