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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS13776US | QX-NET-ASN-1 - QX.Net | — | — | 0 |
| AS13800US | AUBURN-IX - Ninja-IX Corporation | — | — | 0 |
| AS13834US | AGLRSC - AGL Resources Inc. | — | — | 0 |
| AS13841US | IHSENERGY-DENVER - IHS Global, Inc. | — | — | 0 |
| AS13887US | RTG-ASN1 - RoomsToGo.com, Inc. | — | — | 0 |
| AS13906US | 3N-GLOBAL - Everbridge, Inc | — | — | 0 |
| AS13988US | IVANET-FRANKFURT - IBASIS INC. | — | — | 0 |
| AS14033US | RBSLYNK-AS1 - Fidelity National Information Services, Inc. | — | — | 0 |
| AS14154US | FAIRPOINT-UNITE - Fidium | — | — | 0 |
| AS14357US | KCIT-I-NET - King County IT/I-NET | — | — | 0 |
| AS14364US | AMEC-AS - Wood | — | — | 0 |
| AS14493US | AOA-AS-NUMBER - American Osteopathic Association | — | — | 0 |
| AS14533US | UHCC - The Union Hospital of Cecil County, Inc. | — | — | 0 |
| AS14547US | SYMC-CPE - Avago Technologies U.S. Inc. | — | — | 0 |
| AS14572US | TMFHC - Mother Frances Hospital Regional Health Care Center | — | — | 0 |
| AS14774US | WILLIAM-PENN-FOUNDATION - William Penn Foundation | — | — | 0 |
| AS14856US | AS-VUDU - VUDU, Inc. | — | — | 0 |
| AS14896US | CSNOC - Computer Solutions | — | — | 0 |
| AS14960US | AS-IMPERVA-CLOUD-STG - Incapsula Inc | — | — | 0 |
| AS14995US | MASERGY-AS - Masergy Communications, Inc. | — | — | 0 |
| AS15040US | DUCKYASN - Ducky Networks LLC | — | — | 0 |
| AS15095US | DEALER-DOT-COM-AS1 - Dealer Dot Com Inc. | — | — | 0 |
| AS15109US | TRAPP-ONLINE-02 - Trapp Online, LLC | — | — | 0 |
| AS15156US | TSBVI - Texas School for the Blind and Visually Impaired | — | — | 0 |
| AS15184US | NRTC-ISP - NRTC | — | — | 0 |
| AS15189US | VIMRO-AS15189 - VIMRO, LLC | — | — | 0 |
| AS15217US | HPINC - HP Inc. | — | — | 0 |
| AS15264US | RA1900 - Muehlstein Administrative Services, LLC | — | — | 0 |
| AS15275US | GREENFIELDNET-WLT-CT - TOLUNA USA Inc. | — | — | 0 |
| AS15282US | DATA443-COMMTOUCH-INC-2 - Data443 Risk Mitigation, Inc. | — | — | 0 |
| AS16421US | NRT-HAWAII - Realogy Group LLC | — | — | 0 |
| AS16441US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16453US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16454US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16458US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16529US | US-CLOUD-TX - SoftCom America Inc. | — | — | 0 |
| AS16549US | PLCS - Papillion La Vista Community Schools | — | — | 0 |
| AS16753US | SHEETZ-PUBLIC - Sheetz, INC. | — | — | 0 |
| AS16768US | PCS-BGP - Pacific Crest Securities Inc. | — | — | 0 |
| AS16829US | TESSCO-MD - Tessco Technologies | — | — | 0 |
| AS16883US | 365DC-2 - BroadbandONE, LLC | — | — | 0 |
| AS16955US | VIRTU-16955 - Virtu Financial Operating LLC | — | — | 0 |
| AS16963US | HIPCS-SOUTHFIELD-ACCESS-OFFICE - AT&T Enterprises, LLC | — | — | 0 |
| AS17007US | NGIS-AS1 - Northrop Grumman Corp. | — | — | 0 |
| AS17070US | UBSW-CHICAGO - UBS AG | — | — | 0 |
| AS17075US | PARA-1 - Blackhawk Network, Inc. | — | — | 0 |