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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS10635US | THE-BASTILLE - GTE Law Enforcement Services | — | — | 0 |
| AS10492US | CACMEDIANET - CAC-MediaNet | — | — | 0 |
| AS8064US | UABMC - University of Alabama at Birmingham Medical Center | — | — | 0 |
| AS7882US | SPRINT-HAWAII - Sprint Hawaii | — | — | 0 |
| AS7929US | WETWARE - Wetware Services | — | — | 0 |
| AS11150US | LIGHTBOARD CORP - Lightboard Realty | — | — | 0 |
| AS205398US | TYLER-OBRIEN Tyler Obrien | — | 298 | 28 |
| AS10652US | NETSIDE - NetSide Corporation | — | — | 0 |
| AS10861US | E-Z-NET - E-Z.Net, Inc | — | — | 0 |
| AS10746US | TAI - Toshiba America, Inc. | — | — | 0 |
| AS10743US | GLOBALFEED - NTT Multimedia Communication Laboratories | — | — | 0 |
| AS10601US | ELNET - elNet - Electro Link Network, Inc. | — | — | 0 |
| AS8123US | POLYBASE - Polybase | — | — | 0 |
| AS6967US | AS6967 - Metronet | — | — | 0 |
| AS51312US | SRSP-4-51312 - Aubrey Rose | — | 16 | 1 |
| AS7216US | RJL-AS - RjL Systems | — | — | 0 |
| AS6469US | ARTEMIS - Artemis Research | — | — | 0 |
| AS6417US | AGENTS-INC - Agents, Inc. | — | — | 0 |
| AS6402US | TEXAS-AI-SYSTEMS - Texas AI Systems | — | — | 0 |
| AS7779US | LD - Loren Data Corp. | — | — | 0 |
| AS6230US | GANET - Global Access Network | — | — | 0 |
| AS7427US | MKTSYS - Market Systems International | — | — | 0 |
| AS168US | UMASS-AMHERST - University of Massachusetts - AMHERST | — | 256 | 1 |
| AS3483US | COGENT-3483 - Cogent Communications, LLC | — | — | 0 |
| AS5754US | PIXINET1 - Pacific Information Exchange, Inc. | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5710US | NBTBA-ASN - NBT BANCORP INC. | — | — | 0 |
| AS402474US | LMESSER-LABS - Zachary | — | 256 | 1 |
| AS4897US | ECHO-LABS-LLC - ECHO Labs LLC | — | — | 0 |
| AS4067US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS3973US | AS-SPRINTLINK-NYSERN2 - Sprint, Business Services Group | — | — | 0 |
| AS3940US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3546US | DNIC-AS-03546 - United States Department of Defense (DoD) | — | — | 0 |
| AS3680US | NOVELL - Micro Focus | — | — | 0 |
| AS5211US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS262US | VERIO - NTT America, Inc. | — | 1 | 1 |
| AS4349US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4551US | CL-260-4551 - CyrusOne LLC | — | — | 0 |
| AS4394US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS6217US | ANS-AXISNET - Axis.Net Inc. | — | — | 0 |
| AS4255US | BAIN - Bain And Company | — | — | 0 |
| AS16926US | KITTY-NETWORK - KittyTransit LLC | — | 80 | 5 |
| AS4233US | DWRSCADA - State of Caligornia | — | — | 0 |
| AS402792US | DVC-NET-1 - Divine | — | 3 | 2 |
| AS6589US | ROZINT - Rozint | — | — | 0 |