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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 0 |
| AS21845US | SUNGARDAS-21845 - BroadbandONE, LLC | — | — | 0 |
| AS21848US | SUNGARDAS-21848 - BroadbandONE, LLC | — | — | 0 |
| AS21866US | GOTO-OFFICES - Goto Group, Inc. | — | — | 0 |
| AS21927US | PADUCAH-IX - Paducah Internet Exchange Inc. | — | — | 0 |
| AS21940US | FALCONNET-CLT4 - Falcon Internet | — | — | 0 |
| AS21977US | RISE-TX-XNDOO-AS21977 - JAB Wireless, INC. | — | — | 0 |
| AS22000US | AAIMED - ALLIANCE FOR ACADEMIC INTERNAL MEDICINE | — | — | 0 |
| AS22025US | DEMOCRACYDATA - DDC Advocacy | — | — | 0 |
| AS22067US | AFS-3 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS22102US | TEXAS-BB-ASN - Texas Broadband Inc. | — | — | 0 |
| AS22145US | RDSI - Rurbanc Data Services, Inc. | — | — | 0 |
| AS22219US | AO-MSP-1 - Applied Operations, LLC | — | — | 0 |
| AS22318US | ASN-CXA-CF-22318-CBS - Cox Communications Inc. | — | — | 0 |
| AS22517US | PINGER-AS-1 - Pinger, Inc | — | — | 0 |
| AS22631US | SURFAIRWIRELESS-IN-01 - Surf Air Wireless, LLC | — | — | 0 |
| AS22637US | C-R-T - Zayo Bandwidth | — | — | 0 |
| AS22692US | ASN-YAMMER - Microsoft Corporation | — | — | 0 |
| AS22778US | REPLICA-OPEN - Grey Market Labs, PBC | — | — | 0 |
| AS22913US | CSSTRIPARISH - Computer Sales & Services, Inc. | — | — | 0 |
| AS23052US | IHOST-SOLUTIONS-1 - PleskLogin Net | — | — | 0 |
| AS23135US | LLNW-SJC - Limelight Networks, Inc. | — | — | 0 |
| AS23179US | DRIHQ - Directions Research, Inc. | — | — | 0 |
| AS23189US | OSAM - O'Shaughnessy Asset Management, LLC | — | — | 0 |
| AS23208US | INYO-COUNTY - County of Inyo | — | — | 0 |
| AS23264US | CONSOLIDATED-SCHOOL-DISTRICT-158 - Huntley Community School District 158 | — | — | 0 |
| AS23298US | ORNVOICE-AS-1 - Telenational Communications, Inc. | — | — | 0 |
| AS23327US | ACDNET-ASN3 - ACD.net | — | — | 0 |
| AS25638US | 1911INT - Adaptive Imaging Solutions, LTD | — | — | 0 |
| AS25736US | DECIX-SEA-MAPS - DE-CIX North America Inc. | — | — | 0 |
| AS25745US | ALENTUS - Alentus Corporation | — | — | 0 |
| AS25796US | MSFT - Microsoft Corporation | — | — | 0 |
| AS25838US | OMANET - AAA Ohio Motorists Association | — | — | 0 |
| AS25860US | WEBJUICE-NETWORK - WebJuice, LLC | — | — | 0 |
| AS25866US | ND-K12-I2 - State of North Dakota, ITD | — | — | 0 |
| AS25867US | INTRIA-HP-CORP - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS26014US | FECI-FDG - Florida East Coast Industries, LLC | — | — | 0 |
| AS26124US | FISHEL-COMP-01 - Team Fishel | — | — | 0 |
| AS26299US | ICANN - ICANN | — | — | 0 |
| AS26433US | ETP-19-26433 - ERGOS Technology Partners | — | — | 0 |
| AS26504US | METRO-VA-KG - Breezeline | — | — | 0 |
| AS26544US | MOORE-CONCEPTS - Moore Concepts | — | — | 0 |
| AS26777US | CBC-COMPANIES-INC - CBC Companies, Inc. | — | — | 0 |
| AS26890US | AIPIV-ASN - AIP IV, LLC | — | — | 0 |
| AS26893US | EPCOM-GLOBAL-NETWORKS-US100 - Epcom Global Networks | — | — | 0 |
| AS26926US | LINDEN-LAB - Linden Lab | — | — | 0 |
| AS27090US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |