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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 2K |
| — |
| 5 |
| AS13926US | NETPROTECT-PHX - Strong Technology, LLC. | 2K | 256 | 8 |
| AS36440US | TGNA-WCNC - TEGNA Inc. | 2K | — | 8 |
| AS32778US | SMART-CITY-SCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | — | 3 |
| AS30066US | NCL-MIA1 - Norwegian Cruise Line Holdings Ltd. | 2K | — | 8 |
| AS400US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2K | — | 1 |
| AS16638US | CORNINGINC01 - Corning Incorporated | 2K | — | 4 |
| AS1442US | ASNSISL - SureHosting Internet Solutions, Inc. | 2K | 65.5K | 3 |
| AS54905US | DIGITAL-LANDSCAPE - Digital Landscape, Inc. | 2K | — | 1 |
| AS40736US | BOSE-CORPORATION-US - Bose Corporation | 2K | — | 8 |
| AS395516US | TERADATACORP - Teradata Operations, Inc. | 2K | — | 8 |
| AS53872US | ASNTWO-AND-ASNTHREE - Telinta, Inc. | 2K | 4.1K | 3 |
| AS393339US | CONSILIO - Consilio | 2K | — | 8 |
| AS401920US | MOW-MT - Montana Outback Wireless Inc. | 2K | — | 5 |
| AS396930US | OPUS-INTERACTIVE-VA1 - Opus Interactive | 2K | 4.1K | 5 |
| AS395102US | YRMC-ASN - Yuma Regional Medical Center | 2K | — | 4 |
| AS29771US | EXPRESS-LLC-PUBLIC - Express LLC | 2K | — | 8 |
| AS33707US | NUSHAGAK-ASN - Nushagak Electric & Telephone Cooperative, Inc. | 2K | 65.5K | 6 |
| AS36812US | MLL-61 - Master Lock Company LLC | 2K | — | 6 |
| AS19011US | ODETICS - Iteris, Inc. | 2K | — | 8 |
| AS27392US | 639-DATACENTERS - 639 DC Main LLC | 2K | 259 | 12 |
| AS64224US | ATINET - ATI Solutions | 2K | 5.1K | 11 |
| AS398192US | ARDOT-NET-01 - Arkansas Department of Transportation | 2K | — | 5 |
| AS19586US | FIRST-CITY-INTERNET - First City Internet, LLC | 2K | 8 | 16 |
| AS36297US | DHI-COMPUTING-INTERNET - DHI Computing Service, Inc. | 2K | — | 7 |
| AS402128US | PEAKFIBER-01 - PeakFiber Broadband LLC | 2K | — | 1 |
| AS26764US | RWJF-AS - The Robert Wood Johnson Foundation | 2K | — | 5 |
| AS26467US | HYPERTEK - HyperTEK Corporation | 2K | — | 8 |
| AS22945US | AS-PHHS - Parkland Health & Hospital System | 2K | — | 5 |
| AS11777US | NCAOC - North Carolina Adminstrative Office of the Courts | 2K | — | 4 |
| AS35917US | AS-ANDEAVOR - Tesoro Companies, Inc. | 2K | — | 7 |
| AS26026US | BUTLER-UNIVERSITY - Butler University | 2K | — | 1 |
| AS400587US | RYAMER - Ryamer, LLC | 2K | 13.6K | 16 |
| AS19890US | LONE-PINE-OLANCHA - LONE PINE Communications | 2K | — | 2 |
| AS3828US | CIRRUS - Cirrus Logic Inc. | 2K | — | 5 |
| AS53501US | WHS-WEBMD - WebMD Health Services Group, Inc. | 2K | — | 6 |
| AS11935US | TALKPOINT-COMMUNICATIONS-11935 - TalkPoint Communications | 2K | — | 1 |
| AS400137US | COZYCLOUD - CozyCloud IT | 2K | — | 4 |
| AS32841US | BOINGO-AS-EC - Boingo Wireless, Inc. | 2K | — | 1 |
| AS54989US | DUNCAN-TV - DUNCAN TELECOMMUNICATIONS LLC | 2K | — | 8 |
| AS396937US | BEECREEK - Bee Creek Communications, LLC | 2K | — | 6 |
| AS53429US | FREEDOMVOICE - FreedomVOICE Systems | 2K | — | 2 |
| AS394617US | LCUB - LCUB | 2K | 65.5K | 2 |
| AS399515US | PEERTAG-INFRA-CORE - PeerTag LLC | 2K | — | 4 |
| AS63040US | HOSTZORS - Hostzors Inc. | 2K | — | 1 |
| AS397029US | IA-OCIO - State of Iowa OCIO | 2K | — | 2 |
| AS20194US | BEARTECH - Bear Technologies Corporation | 2K | — | 8 |