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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.5K |
| — |
| 2 |
| AS32114US | NETWAVE - NETWAVE BROADBAND INC | 1.5K | 65.5K | 4 |
| AS62807US | NETARYX - NETARYX LLC | 1.5K | — | 3 |
| AS260US | GTT-DXB - GTT Americas, LLC | 1.5K | 131.1K | 7 |
| AS32358US | VENTURACOUNTY - County of Ventura | 1.5K | — | 6 |
| AS46277US | OHIOHEALTH - OhioHealth Corporation | 1.5K | — | 5 |
| AS11928US | HBGUSA - Hachette Book Group, Inc. | 1.5K | — | 5 |
| AS19806US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS398464US | BDDY - Buddy Software LLC | 1.5K | — | 3 |
| AS20137US | USAGM-LAN - USAGM | 1.5K | — | 6 |
| AS36673US | VECTREN63-64-13-1 - Vectren Utility Holdings, Inc. | 1.5K | — | 6 |
| AS27268US | CHICKASAW - The Chickasaw Nation | 1.5K | — | 6 |
| AS4468US | EASYLINK4 - AT&T Enterprises, LLC | 1.5K | — | 6 |
| AS399024US | MIT-366-BMK - Marin IT, Inc. | 1.5K | — | 2 |
| AS398029US | AQUATIC-PUBLIC-01 - Aquatic Group LLC | 1.5K | — | 5 |
| AS7856US | EPPROACH-0 - Epproach Communications, LLC | 1.5K | — | 6 |
| AS393662US | SYMPLYFI-CORENET - SymplyFi | 1.5K | — | 5 |
| AS30230US | CONTINENT8-CLOUD - Continent 8 LLC | 1.5K | — | 6 |
| AS54552US | SP-US-EAST1 - Samaritan's Purse | 1.5K | — | 3 |
| AS5715US | ONVOY - Inteliquent, inc. | 1.5K | 65.5K | 7 |
| AS14951US | VMCNET - Vulcan Materials Company | 1.5K | — | 6 |
| AS402281US | VIX - Vesionix LLC | 1.5K | — | 6 |
| AS22436US | SONICNETINC - SonicNet Inc. | 1.5K | — | 5 |
| AS26083US | NEWEDGE-ASN1 - Newedge Facilities Management, Inc. | 1.5K | — | 6 |
| AS32094US | ERICYHOST - Ericsson Inc. | 1.5K | 3 | 9 |
| AS53605US | PHOEN-56 - PhoenixNAP LLC | 1.5K | — | 2 |
| AS30144US | BQI - BQ Internet Corporation | 1.5K | — | 3 |
| AS19819US | BRADYCOM - Brady Communications, LLC | 1.5K | — | 6 |
| AS13581US | SOFTWAREHOUSE - SHI International Corp. | 1.5K | 1 | 7 |
| AS396535US | ADJUST-US - adjust | 1.5K | 1 | 3 |
| AS23225US | NORTH-CAROLINA-WIRELESS - RiverStreet Networks | 1.5K | — | 2 |
| AS10616US | NTIS - National Oceanic and Atmospheric Administration | 1.5K | 256 | 7 |
| AS53983US | CORKAT-DATA-SOLUTIONS - CorKat Data Solutions, LLC | 1.5K | — | 2 |
| AS55082US | WINKCDN - WINK Streaming LLC | 1.5K | — | 6 |
| AS3384US | CELT - Center for Educational Leadership and Technology | 1.5K | — | 3 |
| AS63290US | QCSTE-AS - QCSTelecom, Inc. | 1.5K | 65.5K | 4 |
| AS397952US | NEXSTREAM - Nexstream | 1.5K | 65.5K | 4 |
| AS2908US | CITI1 - Citigroup Inc. | 1.5K | — | 6 |
| AS32323US | EQUINIX-EC-TR - Equinix, Inc. | 1.5K | — | 5 |
| AS400456US | DREAMWIRE - ITDreamwire | 1.5K | — | 3 |
| AS397336US | VIRTUALSPROUT-01 - Virtual Sprout | 1.5K | — | 6 |
| AS55052US | KMBSU-AS - Konica Minolta Business Solutions U.S.A., Inc. | 1.5K | — | 3 |
| AS55067US | CHILDRENSMN - Childrens Hospitals and Clinics of Minnesota | 1.5K | — | 3 |
| AS216093US | SERVERGUARD Root Localhost LLC | 1.5K | 4 | 10 |
| AS14778US | YAHOO - Yahoo Holdings Inc. | 1.5K | 9 | 15 |
| AS20414US | HWASN - Hunton Andrews Kurth LLP | 1.5K | — | 6 |
| AS397279US | NIMBUS-SOLUTIONS - Nimbus Solutions | 1.5K | — | 6 |