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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. | 218.1M | 26,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,233 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| — |
| 0 |
| AS26561US | NETRIDGE - NetRidge LLC | — | — | 0 |
| AS26642US | AFAS - AnchorFree Inc. | — | — | 0 |
| AS26772US | CMA-WIRELESS - CMA Wireless LLC | — | — | 0 |
| AS26784US | TBI-ASN-2 - TrueBlue, Inc. | — | — | 0 |
| AS26850US | ENPROINDUSTRIES - EnPro Industries, Inc. | — | — | 0 |
| AS26972US | DN-154-26972 - Dash Networks Inc. | — | — | 0 |
| AS26983US | HPINC - HP Inc. | — | — | 0 |
| AS27050US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27062US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27063US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27084US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27094US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27104US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27120US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27141US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27152US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27267US | NETACTUATE - NetActuate, Inc | — | — | 0 |
| AS27318US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS27322US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS27432US | WILSON-LEARNING - Wilson Learning Corporation | — | — | 0 |
| AS27452US | ICI-SJ - Incomm | — | — | 0 |
| AS27582US | AS-TIERP-27582 - TierPoint, LLC | — | — | 0 |
| AS27619US | AS-CUSTOMCRITICAL - FedEx Custom Critical | — | — | 0 |
| AS27633US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS29722US | ACLAB2 - Ascend Clinical, LLC | — | — | 0 |
| AS29738US | DATABANK-PIT - DataBank Holdings, Ltd. | — | — | 0 |
| AS29760US | UNITI-M2 - Uniti Fiber Holdings Inc. | — | — | 0 |
| AS29808US | DCS-CLOUD-01 - deadCenter Solutions LLC | — | — | 0 |
| AS29850US | MHN-AS - Memorial Healthcare | — | — | 0 |
| AS29881US | TPAIX - WideOpenWest Finance LLC | — | — | 0 |
| AS29965US | CHARTER-29965-NA - Charter Communications LLC | — | — | 0 |
| AS29999US | WEBMANAGER - PureVoltage Hosting Inc. | — | — | 0 |
| AS30007US | ICI-CHI - Incomm | — | — | 0 |
| AS30040US | PIM-ASN - Amundi Asset Management US, Inc. | — | — | 0 |
| AS30055US | CROSSLAKECOMMUNICATIONS - Crosslake Communications | — | — | 0 |
| AS30069US | BLUEJEANS - Verizon Business | — | — | 0 |
| AS30122US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30134US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30204US | RENEGADE-TECH-01 - Renegade Technologies | — | — | 0 |
| AS30209US | DATAPIPE-ASN3 - DataPipe, Inc. | — | — | 0 |
| AS30222US | CONTE-25-XERO-PROJECT - Contegix | — | — | 0 |
| AS30235US | TWINSERVERS - Twinservers Hosting Solutions Inc. | — | — | 0 |
| AS30288US | ANRO-INC - ANRO, Inc. | — | — | 0 |
| AS30480US | ONENET-OKCIX-AS-1 - OneNet | — | — | 0 |
| AS30556US | HMH-30556 - HMH | — | — | 0 |
| AS30578US | NATURE-AMERICA-BO - Springer Nature America, INC | — | — | 0 |