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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 | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 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 | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1.3K |
| — |
| 5 |
| AS33427US | WSU-TRI-AS - Washington State University | 1.3K | — | 4 |
| AS36154US | WURESTON - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS18493US | IGNA-NETWORKS - Igna Networks LLC | 1.3K | 256 | 6 |
| AS399907US | CAJUN-BROADBAND - Cajun Broadband, Inc | 1.3K | — | 2 |
| AS54006US | RANCH-WIRELESS-INC - VTX Communications LLC | 1.3K | — | 4 |
| AS54063US | MHHS-AS - Memorial Hermann Health System | 1.3K | — | 5 |
| AS16507US | DELWEBBCORP - Del Webb Corporation | 1.3K | — | 2 |
| AS14054US | PURPLENET - Purple Computer North America, Inc. | 1.3K | 1 | 6 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS12047US | GUNDERSEN-LUTHERAN - Gundersen Lutheran Medical Center, Inc. | 1.3K | — | 5 |
| AS20285US | INFINITE-CAMPUS-MN - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS26975US | TEXAS-HEALTH-RESOURCES - Texas Health Resources | 1.3K | — | 5 |
| AS394099US | DECORAH-METRONET - Decorah MetroNet | 1.3K | 65.5K | 4 |
| AS22013US | GUARD-DC1 - Guardian Analytics, Inc. | 1.3K | — | 5 |
| AS6269US | ATT-INTERNET2 - AT&T Enterprises, LLC | 1.3K | — | 2 |
| AS55171US | MTS-HEALTHCARE - MTS Healthcare | 1.3K | — | 4 |
| AS14278US | BBOX-IT-AS-1 - Black Box Network Services | 1.3K | — | 5 |
| AS6534US | OCEANIC-CABLE - Charter Communications Inc | 1.3K | — | 2 |
| AS40615US | BCHD-AS-1 - University Health System | 1.3K | — | 5 |
| AS394915US | DFC-WASH - U.S. International Development Finance Corporation | 1.3K | 32 | 7 |
| AS31814US | FSI - FlightSafety International | 1.3K | — | 5 |
| AS398116US | FDNY-NETWORKSRV-01 - FDNY | 1.3K | — | 5 |
| AS22546US | WEYERHAEUSER - Weyerhaeuser Company | 1.3K | — | 2 |
| AS14951US | VMCNET - Vulcan Materials Company | 1.3K | — | 5 |
| AS402215US | DEVOLOGY - Devology Tech LLC | 1.3K | — | 5 |
| AS393351US | AMERISBANK - Ameris Bank | 1.3K | — | 5 |
| AS54566US | SERVIKUS - Servikus LLC | 1.3K | 256 | 3 |
| AS203156US | Relayify-LLC Relayify LLC | 1.3K | 524.3K | 6 |
| AS40638US | PASON-SYSTEMS-USA - Pason Systems USA Corp | 1.3K | — | 2 |
| AS40692US | CIS-AZ-1 - Cochise Internet Services | 1.3K | 65.5K | 6 |
| AS14676US | REGUS - Regus Business Centre, LLC | 1.3K | — | 5 |
| AS40620US | INGENUITY-SYSTEMS - QIAGEN Redwood City, Inc. | 1.3K | — | 5 |
| AS399675US | GIGALINX - GigaLinx Communications LLC. | 1.3K | 65.5K | 3 |
| AS22649US | AS-CODINGDIRECT - CodingDirect LLC | 1.3K | 4.1K | 6 |
| AS36360US | ZINGOMEDIA - Zingo Media Group LLC | 1.3K | — | 5 |
| AS62664US | UNITEDTELEPORTS - UNITED TELEPORTS, INC. | 1.3K | — | 5 |
| AS394203US | CHICAGOSERVERS - Chicagoservers.org | 1.3K | 5 | 10 |
| AS54640US | CONEHEALTH - The Moses H. Cone Memorial Hospital | 1.3K | — | 5 |
| AS53616US | ASYMPTOTE - ASYMPTOTE NETWORK, LLC | 1.3K | — | 2 |
| AS30039US | SN4ENDO - Smith and Nephew - Endoscopy | 1.3K | — | 5 |
| AS30643US | TTXCOMPANY - TTX Company | 1.3K | — | 5 |
| AS63435US | MONTEREY-AS-01 - County of Monterey | 1.3K | — | 5 |
| AS546US | PARSONS-PGS-1 - Parsons Corporation | 1.3K | — | 5 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS36857US | FREUDE - Freudenberg-NOK General Parternership | 1.3K | — | 2 |
| AS55185US | GWLT-ORL01 - Gainwell Technologies LLC | 1.3K | — | 5 |