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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 |
| 768 |
| — |
| 2 |
| AS1012US | MOE-BGP - Moe BGP Co. | 768 | — | 2 |
| AS27560US | ULTCO - Universal Leaf Tobacco Company Inc. | 768 | — | 3 |
| AS13606US | LEANDERTX-AS1 - City of Leander, Texas | 768 | — | 3 |
| AS20040US | WESTERNAND-SOUTHERN-FINANCIAL-GROUP - Western & Southern Financial Group Inc. | 768 | — | 3 |
| AS47553US | MISAKA-BYOIP Misaka Network, Inc. | 768 | 1 | 4 |
| AS32988US | ANALOG DEVICES - Analog Devices, Inc. | 768 | — | 3 |
| AS396458US | CMM-ATL - CoverMyMeds LLC | 768 | — | 2 |
| AS36364US | MHSNET - Mary Washington Hospital, Inc. | 768 | — | 3 |
| AS397554US | HAPPYCYCLING - Happy Cycling LLC | 768 | 131.1K | 4 |
| AS16577US | DIGITALEDGE-2 - DIGITAL EDGE VENTURES INC. | 768 | — | 2 |
| AS15258US | GBCO - Gilbane Building Company | 768 | — | 3 |
| AS397625US | TPC - Tessy Plastics Corp. | 768 | — | 2 |
| AS33753US | WBMI - West Bend Mutual Insurance Company | 768 | — | 3 |
| AS14779US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS53865US | PEER-POINT - Peer-Point Services, LLC. | 768 | — | 3 |
| AS54481US | CHESCO204108252 - County of Chester | 768 | — | 3 |
| AS29981US | ROBINHOOD-MARKETS-1 - ROBINHOOD MARKETS, INC. | 768 | — | 3 |
| AS7285US | SAGENET - SageNet LLC | 768 | — | 3 |
| AS395788US | KELLOGGCO - Kellogg Company | 768 | — | 3 |
| AS20421US | FLEXB-ASN - First Technology Federal Credit Union | 768 | — | 3 |
| AS7723US | EMERGENCY24-AS - Emergency 24 | 768 | — | 3 |
| AS400001US | DULUTHTRADING - Duluth Holdings Inc. | 768 | — | 2 |
| AS211607US | RECORDEDFUTURE Securitytrails, LLC | 768 | 4.1K | 5 |
| AS22475US | MVP - MVP Health Plan Inc. | 768 | — | 2 |
| AS63130US | NATIONAL-LOUIS-UNIVERSITY - National-Louis University | 768 | — | 3 |
| AS205397US | AS-69HOST 69HOST LLC | 768 | — | 3 |
| AS394597US | HCDL-NEW-JERSEY-DATA-CENTER - H5 Data Centers | 768 | — | 3 |
| AS22395US | TORNADOCOMP - Tornado Computer Systems, Inc. | 768 | — | 2 |
| AS54040US | NBCUNI - NBCUniversal | 768 | — | 2 |
| AS26182US | AS-EXCELLUS - Excellus Health Plan, Inc. | 768 | — | 3 |
| AS395315US | TCMC-BGP-01 - Tri-City Medical Center | 768 | — | 2 |
| AS10745US | ARIN-ASH-CHA - ARIN Operations | 768 | 3 | 6 |
| AS23008US | NORC-1 - NORC | 768 | 2 | 5 |
| AS20007US | CIT-ASN-01 - cloudIT | 768 | — | 3 |
| AS19980US | CAREERED - Career Education Corporation | 768 | — | 2 |
| AS36665US | NATIONAL-CINEMEDIA - National Cinemedia, LLC | 768 | — | 3 |
| AS63112US | SERVICENOW-CORP - Service-now.com | 768 | — | 3 |
| AS219217US | Zetly Netly LLC | 768 | — | 3 |
| AS394234US | AS-IRSC - Indian River State College | 768 | — | 3 |
| AS32291US | ANNEARUNDELMEDICALCENTER - ANNE ARUNDEL MEDICAL CENTER | 768 | — | 3 |
| AS46725US | ESC19-ASN - Education Service Center-Region 19 | 768 | — | 3 |
| AS395502US | JCOLO - JeffColo | 768 | 4 | 7 |
| AS395580US | CENTRAL-BLK - Central College | 768 | 258 | 6 |
| AS54645US | HANMI-INTERNET - HANMI BANK | 768 | — | 3 |
| AS13317US | AS-WAN - Wan holdings LLC | 768 | 256 | 4 |
| AS393320US | FORTY-NINERS-ASN-2024 - Forty Niners Holdings LP | 768 | — | 3 |