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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. | 211.2M | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 0 |
| AS33074US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33135US | NETNUMBER - NetNumber, Inc. | — | — | 0 |
| AS33150US | APTC - ANAHEIM PALMS TELECOM CENTER, LLC | — | — | 0 |
| AS33214US | TENAUTO-NA - Tenneco Automotive Operating Company Inc. | — | — | 0 |
| AS33272US | INTERLOCHEN-CENTER-FOR-THE-ARTS - Interlochen Center for the Arts | — | — | 0 |
| AS33310US | VIZAI-GATEWAY-01 - Viz.ai, Inc. | — | — | 0 |
| AS33325US | CHARTER-33325-NA - Charter Communications LLC | — | — | 0 |
| AS33337US | TNS-NYCMVP - Transaction Network Services, Inc. | — | — | 0 |
| AS33380US | SSNC-OMR - SS&C Technologies, Inc. | — | — | 0 |
| AS33413US | BETA-OFFSHORE - Beta Offshore | — | — | 0 |
| AS33437US | AGCS - ASCENT GLOBAL CORPORATE SERVICES LLC | — | — | 0 |
| AS33446US | OPWV-SAAS-LON - Critical Path, LLC | — | — | 0 |
| AS33472US | DATABANK-LATISYS - Latisys-Ashburn, LLC | — | — | 0 |
| AS33552US | FLUIDHOSTING - Fluid Hosting LLC | — | — | 0 |
| AS33646US | SFH-AS - Sasser Family Holdings, Inc. | — | — | 0 |
| AS33704US | IFN-NET - Zayo Bandwidth | — | — | 0 |
| AS35849US | MTOLA - Munger Tolles & Olson LLP | — | — | 0 |
| AS35867US | PEMASN - Performance Equity Management, LLC | — | — | 0 |
| AS35869US | PETERAMAYER - Peter A Mayer Advertising, Inc. | — | — | 0 |
| AS35884US | SECUREDATA365-OH1 - ARK Data Centers LLC | — | — | 0 |
| AS35914US | ARMOR-DEFENSE - Armor Defense Inc | — | — | 0 |
| AS35951US | COMTECH-TELECOMMUNICATION-CORP - Comtech Telecommunications Corp. | — | — | 0 |
| AS36021US | FARR-FIN - Certigo, Inc | — | — | 0 |
| AS36080US | TAGGED-ASN - IFWE INC | — | — | 0 |
| AS36142US | NETRIX IT SERVICES-OLD - Netrix LLC | — | — | 0 |
| AS36202US | INTERN-NETAS - Performive LLC | — | — | 0 |
| AS36254US | NRS-SFO - Virtual Radiologic Corporation | — | — | 0 |
| AS36389US | NAME-COM - Name.com LLC | — | — | 0 |
| AS36438US | HIPTSG-AS01 - Whoa Networks Inc | — | — | 0 |
| AS36453US | RISE-UT-DIGIS-AS36453 - JAB Wireless, INC. | — | — | 0 |
| AS36499US | NWF-LOCALTEL-ASN-4 - Ziply Fiber | — | — | 0 |
| AS36526US | SOLIDNETWORKS - Solid Networks, Inc | — | — | 0 |
| AS36629US | MGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36681US | TRITE-7 - Tritech Communications Inc. | — | — | 0 |
| AS36771US | WPTZ-TV - Hearst-Argyle Television, Inc. | — | — | 0 |
| AS36818US | VARIOUS - FriendFinder Networks Inc | — | — | 0 |
| AS36848US | WTG-BGP01 - Wireless Telecom Group, Inc. | — | — | 0 |
| AS39968US | PRACTICE-FUSION - PRACTICE FUSION, INC. | — | — | 0 |
| AS40030US | FALLSNET - Fallsnet | — | — | 0 |
| AS40058US | GYROCAST - Gyrocast Limited | — | — | 0 |
| AS40125US | CYBERNET-ENTERTAINMENT - Cybernet Entertainment, LLC | — | — | 0 |
| AS40141US | COGNEX-DU - Cognex Corporation | — | — | 0 |
| AS40221US | FIDELUS - Fidelus Technologies, LLC | — | — | 0 |
| AS40308US | VIASAT-3 - ViaSat,Inc. | — | — | 0 |
| AS40319US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | — | — | 0 |
| AS40384US | ZSCALER-GRX - ZSCALER, INC. | — | — | 0 |