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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| 0 |
| AS6550US | SBSERVICES-AS - Sitel | — | — | 0 |
| AS6551US | MOBILETNET - America ISP | — | — | 0 |
| AS6583US | MONGO-6583 - MongoDB, Inc. | — | — | 0 |
| AS6600US | GHGNETASN - GHG Corporation | — | — | 0 |
| AS6601US | PAVLOVMEDIA-AS - Sol Tec, Inc. | — | — | 0 |
| AS6609US | MIINT - Millennia Internet, Inc. | — | — | 0 |
| AS6615US | PCIS - Kelly Consultants | — | — | 0 |
| AS6631US | NN-CAE - NAP.NET, LLC | — | — | 0 |
| AS6632US | IMAGINATION - Imagination Network | — | — | 0 |
| AS6643US | JIVECOMMUNICATIONS - Goto Group, Inc. | — | — | 0 |
| AS6650US | LOGICWORKS-AS - Logicworks Corporation | — | — | 0 |
| AS6916US | EXCO-NA - Exco RMJ Securities Corp | — | — | 0 |
| AS6933US | HARBING-ASN - Harbinger Net Services | — | — | 0 |
| AS6970US | BSG-AIR-NET - Imonics Corporation | — | — | 0 |
| AS6971US | VMX-US1 - Verimatrix, Inc. | — | — | 0 |
| AS7000US | ISPIX - Globel Net, Inc. | — | — | 0 |
| AS7033US | FIREWALL - Eris Free Networking | — | — | 0 |
| AS7035US | ECLIPSE - Eclipse Internet Access | — | — | 0 |
| AS7052US | HTS-AS - Hi-Tech Services, Inc. | — | — | 0 |
| AS7053US | AIMEDIA-MDSNWI - AT&T Services, Inc. | — | — | 0 |
| AS7083US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7089US | REALITYON - Reality Online Inc. | — | — | 0 |
| AS7109US | DATEK - Datek Securities Corp. | — | — | 0 |
| AS7174US | ONWARD-ASN - Onward Technologies, Inc. | — | — | 0 |
| AS7178US | THOMSON-REUTERS - Thomson Reuters (Legal) Inc. | — | — | 0 |
| AS7183US | NAVIENT-SOLUTIONS-LLC - Navient Solutions, LLC | — | — | 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 |