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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 | 24,749 |
| 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.
32,226 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 | 4,282 |
| — |
| — |
| 0 |
| AS7210US | SPRINT-ISP2 - Sprint Multimedia Consumer InternetServices | — | — | 0 |
| AS7259US | NETGEN - net.Genesis Corp | — | — | 0 |
| AS7274US | TKI - Teknowledge Industries, Inc. | — | — | 0 |
| AS7300US | AS-INFOTRAX-SYSTEMS - InfoTrax Systems, L.C. | — | — | 0 |
| AS7302US | ADVANCEDINTERNETCOMM - Advanced Internet Communications, Inc. | — | — | 0 |
| AS7336US | LUNAVI-NY - Lunavi, Inc. | — | — | 0 |
| AS7347US | USXPRESS - U.S. Xpress Enterprises, Inc. | — | — | 0 |
| AS7373US | GORGON-NJ - Gorgon Enterprises, Inc. | — | — | 0 |
| AS7458US | COGENT-7458 - Cogent Communications, LLC | — | — | 0 |
| AS7750US | ONSALE - Software Partners, Inc. | — | — | 0 |
| AS7796US | ATMLINK - ATMLINK, INC. | — | — | 0 |
| AS7797US | YAB - Flatland Center BBS | — | — | 0 |
| AS7851US | TWC-7851-NA - Charter Communications Inc | — | — | 0 |
| AS7887US | AS-CCPL - Cuyahoga County Public Library | — | — | 0 |
| AS7888US | CSI-CORP - Component Software International, Inc. | — | — | 0 |
| AS7889US | FULL-ECLIPSE - Full Eclipse, Inc. | — | — | 0 |
| AS7899US | EXAMCO - Examco, Inc. | — | — | 0 |
| AS7911US | LVLT-7911 - Level 3 Parent, LLC | — | — | 0 |
| AS7919US | DIGITALDATA-AS - Digital Data Technologies, Inc. | — | — | 0 |
| AS7998US | CYTEC - Cytec Industries Inc. | — | — | 0 |
| AS8005US | SUNLINK1 - SunLink | — | — | 0 |
| AS8020US | CAVECOMM-ASN - Cave Communications | — | — | 0 |
| AS8027US | GBLNAPSBOSMIX - Global NAPs Inc. | — | — | 0 |
| AS8033US | WORLDNET5-10 - AT&T WorldNet | — | — | 0 |
| AS8040US | MMD - MMD Entertainment, LLC | — | — | 0 |
| AS8060US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS8083US | CONGQTLY - Congressional Quarterly | — | — | 0 |
| AS8087US | NEUMEDIA - NeuMedia, Inc. | — | — | 0 |
| AS8158US | LIL-16 - CACI Inc., Federal | — | — | 0 |
| AS8189US | STRATOS - Stratos Internet Group, Inc. | — | — | 0 |
| AS10263US | MATCHMAKER - MatchMaker/DFW-ISP | — | — | 0 |
| AS10280US | DIALIP-E-SW - GLOBAL ONE | — | — | 0 |
| AS10283US | DIALIP-AMERICAS - GLOBAL ONE | — | — | 0 |
| AS10312US | HEARTPORT - Heartport Inc. | — | — | 0 |
| AS10314US | FIRSTLIGHT-AS-10314 - FirstLight Fiber, Inc. | — | — | 0 |
| AS10378US | NODEWARRIOR - NodeWarrior Networks, Inc | — | — | 0 |
| AS10424US | CENTURYLINK-CO-LAN - CenturyLink Communications, LLC | — | — | 0 |
| AS10501US | PACLINK - PacLink Communications LLC | — | — | 0 |
| AS10512US | EFOREX-AS - E-FOREX | — | — | 0 |
| AS10523US | ROADRUNNER-003-ALBANY - Excalibur Group | — | — | 0 |
| AS10530US | VERESTAR - SES Americom Inc. | — | — | 0 |
| AS10535US | USNETWAY - US Netway, Inc. | — | — | 0 |
| AS10548US | LCGM-AS1 - LCGM, Inc. | — | — | 0 |
| AS10573US | WEBNEXUS - WebNexus Communications Inc. | — | — | 0 |
| AS10574US | BJKE - BJK & E, Inc. | — | — | 0 |
| AS10643US | SUBURBCABLE - Suburban Cable TU CO, Inc. | — | — | 0 |