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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS23066US | COKEM - COKeM International, LTD. | — | — | 0 |
| AS23146US | TA61-01 - T.C.B. Associates, Inc. | — | — | 0 |
| AS23236US | RWS-156 - Hosting Source, LLC | — | — | 0 |
| AS23272US | TAMUCC-NET - Texas A&M University Corpus Christi | — | — | 0 |
| AS23377US | RADISSON-HOSPITALITY-INC - Choice Hotels International, Inc. | — | — | 0 |
| AS23407US | ALT-N - Alt-N Technologies, Ltd. | — | — | 0 |
| AS23421US | CTS-MNS - Core Technology Services, Inc. | — | — | 0 |
| AS23455US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS23504US | MEGAPATH9-US - GTT Americas, LLC | — | — | 0 |
| AS23505US | ECG-CHARLOTTE - ACI Worldwide, Inc. | — | — | 0 |
| AS23506US | AS23506 - AV SERVICES LLC | — | — | 0 |
| AS24004US | PCV-9-24004 - PeoplesBank, A Codorus Valley Company | — | — | 0 |
| AS25485US | VERISIGN-AS VeriSign Inc. | — | — | 0 |
| AS25613US | MEDIACOM-RESIDENTIAL-CUST - Mediacom Communications Corp | — | — | 0 |
| AS25741US | RISE-CO-SB-25741 - JAB Wireless, INC. | — | — | 0 |
| AS25767US | MWAY - Route 256 | — | — | 0 |
| AS25778US | URBAN-INSTITUTE - The Urban Institute | — | — | 0 |
| AS25856US | ERATRANS - DATA AXLE, INC | — | — | 0 |
| AS25881US | SINGLE-DIGITS - Single Digits, Inc. | — | — | 0 |
| AS26012US | NET-OHIO-BWC - Ohio Bureau of Worker's Compensation | — | — | 0 |
| AS26108US | PRICEGRABBER-AS - Connexity, Inc. | — | — | 0 |
| AS26180US | NETIQ-HOUSTON-13939 - Attachmate Corp. | — | — | 0 |
| AS26213US | DMSMAIN - Dealer Marketing Services | — | — | 0 |
| AS26222US | MS-DANGER - Microsoft Corporation | — | — | 0 |
| AS26265US | 46LABS-H3NET - 46 Labs LLC | — | — | 0 |
| AS26386US | DEEPSYS-CHICAGO - Deep Systems LLC | — | — | 0 |
| AS26444US | PAYPAL - PayPal, Inc. | — | — | 0 |
| AS26542US | REFINITIV - Refinitiv US LLC | — | — | 0 |
| AS26556US | HYEHOST - HYEHOST LLC | — | — | 0 |
| AS26697US | OCNL-AS26697 - Operations & Compliance Network LLC | — | — | 0 |
| AS26880US | NODELORD - NodeLord, LLC | — | — | 0 |
| AS26895US | CIMCO1 - First Communications LLC | — | — | 0 |
| AS26997US | GPJOSEPH - Joseph Hage Aaronson LLC | — | — | 0 |
| AS27073US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27155US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27196US | TPG-MBS - The Purple Guys, L.L.C. | — | — | 0 |
| AS27248US | ASN-NPG-DC - Springer Nature America, INC | — | — | 0 |
| AS27393US | RIA-ASN-01 - Continental Exchange Solutions, Inc. | — | — | 0 |
| AS27440US | SSNC-CHI - SS&C Technologies, Inc. | — | — | 0 |
| AS27581US | ICI-MIA - Incomm | — | — | 0 |
| AS27643US | NBINTERNET - NB INTERNET, LLC | — | — | 0 |
| AS29777US | NICK-BURKE - Manage Your Site Right | — | — | 0 |
| AS29890US | CARCO - Carco Group, Inc. | — | — | 0 |
| AS29910US | IACP - INTL. ASSN OF CHIEF OF POLICEI | — | — | 0 |
| AS29922US | SANFORD-AIRPORT-AUTHORITY - Sanford Airport Authority | — | — | 0 |
| AS30020US | BENFIELD-2003ASN - BENFIELD HOLDINGS INC | — | — | 0 |