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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS23734US | NETROUTINGINC-AS-AP - Netrouting Inc | 512 | — | 2 |
| AS21876US | THE-SAVE-MART-COMPANIES - The Save Mart Companies | 512 | — | 2 |
| AS400045US | DUMONT-TELEPHONE-COMPANY - Dumont Telephone Company | 512 | 256 | 3 |
| AS394427US | ZOICSTUDIOS - Zoic Studios | 512 | — | 2 |
| AS401921US | GRACE - Grace Money Co. | 512 | 2 | 4 |
| AS398949US | KISSUSA-NY - KISS NAIL PRODUCTS, INC | 512 | — | 2 |
| AS398381US | DC-ASN - Dallas, County Of | 512 | — | 2 |
| AS27137US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS398351US | MAYMOBILITY - May Mobility, Inc | 512 | 2 | 4 |
| AS36581US | WJCL-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS33690US | AUREON-33690 - Aureon Network Services | 512 | 256 | 3 |
| AS393864US | PRESTIGE-BROADBAND - Prestige Broadband LLC | 512 | — | 2 |
| AS19652US | VACATION-EXPRESS - VACATION EXPRESS | 512 | — | 2 |
| AS395740US | CHOCTAW-NATION-OF-OKLAHOMA - Choctaw Nation of Oklahoma | 512 | — | 2 |
| AS393465US | VEOLIA-NA - Veolia Environnement North America Operations, LLC | 512 | — | 2 |
| AS35872US | FREEDOM-PHL-AS - FreedomPay, Inc. | 512 | — | 2 |
| AS400447US | APOG-WAYLAND - Apogee Telecom Inc. | 512 | — | 2 |
| AS1077US | ACTIVEPURE-TECH-01 - ActivePure Technologies, LLC | 512 | — | 2 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS11932US | EDF-MAN-CAPITAL-INC - Breakwater | 512 | — | 2 |
| AS1383US | ANSBB-ASNNET-2 - Verizon Business | 512 | — | 1 |
| AS29721US | CSHS-ELSEGUNDO - Cedars-Sinai Health Systems | 512 | — | 2 |
| AS53775US | SEKISUI KYDEX - Sekisui KYDEX, LLC | 512 | — | 2 |
| AS13313US | BARNES-AND-NOBLE - Barnes & Noble Inc. | 512 | — | 2 |
| AS27363US | FOXPITT-KELTON - Swiss Re America Holding Corporation | 512 | — | 2 |
| AS208379US | APTN The Associated Press | 512 | — | 2 |
| AS396928US | ASN-FC-01 - FB CORPORATION | 512 | — | 2 |
| AS14528US | SHOTSPOTTER-01 - SHOTSPOTTER, INC. | 512 | — | 2 |
| AS396395US | ALLIANTINSURANCE - Alliant Insurance Services, Inc. | 512 | — | 2 |
| AS54385US | TOLLESON - City of Tolleson | 512 | — | 2 |
| AS22751US | MOTHIC-INFINET - Mothic Technologies LLC | 512 | 4.1K | 3 |
| AS36569US | KMBC-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS17109US | CALITECH - Calitech | 512 | — | 2 |
| AS40889US | GREYSTONE - Greystone IT, Inc. | 512 | — | 2 |
| AS62733US | SOLANOCOUNTY - Solano County | 512 | — | 2 |
| AS397440US | TAVANT-SC9-DATACENTER - Tavant Technologies, Inc. | 512 | — | 2 |
| AS21912US | PACIFICTERRACE-GUEST-INTERNET - Pacific Terrace Hotel | 512 | — | 1 |
| AS25806US | RALEYNET - Raley's | 512 | — | 2 |
| AS36462US | TGNA-KHOU - TEGNA Inc. | 512 | — | 2 |
| AS36209US | TGNA-WKYC - TEGNA Inc. | 512 | — | 2 |
| AS36265US | MCL-INT-ALL - Maverick Capital, LTD. | 512 | — | 2 |
| AS63165US | CCPS-17ASN - Clayton County Public Schools | 512 | — | 2 |
| AS394153US | VELOXINET - Veloxinet | 512 | — | 2 |
| AS40350US | KEYCOOP - Key Cooperative | 512 | — | 2 |
| AS400998US | AWN-SERVER-HOSTING - AWN Server Hosting, LLC | 512 | — | 2 |
| AS19670US | CUSTOMCOMPUTERSPECIALISTS - Custom Computer Specialists, Inc. | 512 | — | 2 |