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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. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS46517US | SEATTLE-CITY-LIGHT - City of Seattle, Dept. of Admin. Services | — | — | 0 |
| AS46529US | CORESITE-SPARE - CoreSite | — | — | 0 |
| AS46547US | RMF-ENGINEERING-MEP - Rmf Engineering, Inc. | — | — | 0 |
| AS46657US | KPS-HORIZON-NET-2 - KNIGHT POINT SYSTEMS, LLC | — | — | 0 |
| AS46698US | WHITESKY-COMMUNICATIONS-3 - WhiteSky Communications, LLC. | — | — | 0 |
| AS46706US | NIL-ASN - Northwood Investors, LLC | — | — | 0 |
| AS46738US | KENSHOO - Kenshoo, Inc. | — | — | 0 |
| AS46804US | JADASE-AS - Jadase LLC | — | — | 0 |
| AS47026US | DIANOIA - Dianoia LLC | — | — | 0 |
| AS47073US | JCPA-AS - The Jackson Clinic, P.A. | — | — | 0 |
| AS53375US | FNW-ZEELAND - FreedomNet | — | — | 0 |
| AS53404US | CIVISTECHNOLOGIES-LLC - Civis Technologies, LLC | — | — | 0 |
| AS53459US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS53580US | MARKETO - MARKETO, Inc. | — | — | 0 |
| AS53644US | OFI-DC - Invesco Group Services, Inc. | — | — | 0 |
| AS53660US | TORRN - TorrNet | — | — | 0 |
| AS53679US | MICEASN - Midwest Internet Cooperative Exchange LLC | — | — | 0 |
| AS53742US | HRH-ASN - Houlton Regional Hospital | — | — | 0 |
| AS53756US | CSTL-5-53756 - Clear Street | — | — | 0 |
| AS53952US | DECIX-ORD-MAPS - DE-CIX North America Inc. | — | — | 0 |
| AS54034US | LEGACY-INFOGIX - Precisely Software Incorporated | — | — | 0 |
| AS54109US | WORKD-PROD - Workday, Inc. | — | — | 0 |
| AS54329US | SUMOFIBER-54329 - Sumofiber | — | — | 0 |
| AS54387US | RWS - Retailer Web Services LLC | — | — | 0 |
| AS54418US | ANBTX - American National Bank of Texas | — | — | 0 |
| AS54490US | OCA-AS - Olympus Corporation of the Americas | — | — | 0 |
| AS54517US | HIE-APPLICATION - Strata | — | — | 0 |
| AS54522US | CIERANT-CORP - CIERANT CORPORATION | — | — | 0 |
| AS54533US | CPN - CSN Support Services | — | — | 0 |
| AS54621US | HJ-AMERICAS - Hylton James LLC | — | — | 0 |
| AS54631US | SNAPNAMES - SNAPNAMES.COM, INC. | — | — | 0 |
| AS54685US | ASHS - ASHS | — | — | 0 |
| AS54699US | KWMINCUSA - KWM, INC. | — | — | 0 |
| AS54709US | ACA-961 - AMERICAN CREDIT ACCEPTANCE | — | — | 0 |
| AS54727US | TEL-NEWORKS-USA - Tel-Networks USA, LLC | — | — | 0 |
| AS54782US | AS-GMO - Merrick Mirror Hosting, Inc | — | — | 0 |
| AS54795US | BUILD-AMERICA-MUTUAL-ASSURANCE - Build America Mutual Assurance Company | — | — | 0 |
| AS54881US | TXPNET-RIPE-001 - TXP-Network CD, LLC | — | — | 0 |
| AS54938US | BSPEEDYINC-1 - Nextlink Broadband | — | — | 0 |
| AS55031US | DATADOG - Datadog, Inc. | — | — | 0 |
| AS55041US | SNAP-INTERACTIVE - 20-3191847 | — | — | 0 |
| AS55169US | ATHEN-RAZOR - Athenahealth | — | — | 0 |
| AS55186US | ROOTAXCESS-NET1 - Fusion, LLC | — | — | 0 |
| AS55258US | COLOGIX-DAL - Cologix, Inc | — | — | 0 |
| AS57065US | ServerKingUK ServerKing.io, LLC | — | — | 0 |
| AS58722US | CINL-58722 - SoundStack Technologies, LLC | — | — | 0 |