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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 5.6K |
| — |
| 7 |
| AS33346US | MONSTERBROADBAND - Point Broadband Fiber Holding, LLC | 5.6K | 4.1K | 9 |
| AS36222US | WINDWAVE-COMMUNICATIONS - WindWave Communications | 5.6K | 131.1K | 17 |
| AS29892US | BLUELOCK - BlueLock, LLC | 5.6K | — | 19 |
| AS55211US | AS-EDGEUNO-NETWORK - EdgeUno | 5.6K | 65.6K | 11 |
| AS396259US | TERIDION1 - Teridion inc | 5.6K | — | 22 |
| AS13511US | UNIVI-2-ASN - Univision Communications Inc. | 5.6K | — | 12 |
| AS398808US | ACS-PUBLIC-01 - Arch Capital Services LLC | 5.6K | — | 21 |
| AS397766US | FDU-CA - Fairleigh Dickinson University | 5.6K | — | 3 |
| AS399606US | IMAGINGBAY - Imaging Bay, Inc. | 5.6K | 4 | 26 |
| AS13598US | DAIMLERTRUCKS-NA-AS - DAIMLER TRUCKS OF NORTH AMERICA LLC | 5.6K | — | 10 |
| AS23522US | ASN-HRNET - GigeNET | 5.6K | — | 8 |
| AS11142US | PRECISION-DATA-SOLUTIONS - Precision Data Solutions, LLC | 5.6K | 65.5K | 5 |
| AS27541US | FTNET - Frontier Telenet | 5.6K | — | 9 |
| AS2728US | GIGSOUTH - Gigsouth, LLC | 5.6K | 10.2K | 24 |
| AS36502US | CERNER-CORPORATE-AS - Cerner Corporation | 5.6K | — | 6 |
| AS32829US | PORT-NETWORKS-BALTIMORE - Port Networks, Inc. | 5.6K | — | 11 |
| AS10392US | NSB1-NET - New Source Broadband | 5.6K | — | 14 |
| AS11681US | INTEGRITY - Integrity Networks | 5.6K | — | 4 |
| AS29732US | CTE-ASN1 - Carolina Tractor and Equipment Company | 5.6K | — | 5 |
| AS400690US | KEYSTONE-SOLUTIONS - KSB Industries, LLC | 5.6K | — | 16 |
| AS19648US | LDSCHURCH1 - Corporation of the Presiding Bishop of the Church of Jesus Christ of Latter-day Saints | 5.6K | 196.9K | 11 |
| AS6352US | ETRADE-AS - E*TRADE Financial Corporation | 5.6K | — | 19 |
| AS54057US | WST-INET - Wheat State Telephone, Inc. | 5.6K | — | 22 |
| AS11941US | PWLLP-AS001 - Pillsbury Madison & Sutro, Inc. | 5.6K | — | 22 |
| AS397068US | CAROLINACONNECT-01 - CarolinaConnect Cooperative | 5.6K | 772 | 29 |
| AS55034US | IGGCOM - IGG.COM | 5.6K | — | 22 |
| AS13659US | INTERTECH - INTERTECH CORPORATION | 5.6K | — | 20 |
| AS21965US | HIGHMARK - Highmark Inc | 5.6K | — | 22 |
| AS399274US | CONNECT-INTERNET-BY-JASPER-REMC - Jasper County REMC | 5.6K | 69.6K | 5 |
| AS14888US | FNNI-AS14888 - First National Bank of Omaha | 5.6K | — | 4 |
| AS31835US | CONTOUR-NETWORKS - Contour Networks | 5.6K | — | 9 |
| AS401918US | HUA-8-ASN-01 - Humboldt Utilities Broadband | 5.6K | 65.5K | 9 |
| AS13900US | CBN - Christian Broadcasting Network, Inc. | 5.6K | — | 14 |
| AS397443US | LOWER-COLORADO-RIVER-AUTHORITY - Lower Colorado River Authority | 5.6K | — | 6 |
| AS399086US | FLIGHTAWARE-02 - FlightAware | 5.6K | 18 | 12 |
| AS26324US | GARMIN-ASN-1 - GARMIN INTERNATIONAL INC. | 5.6K | 2 | 20 |
| AS63275US | RADIOWIRE - RadioWire.net | 5.6K | — | 4 |
| AS40448US | HYPERLEAF1 - Hyperleaf, LLC | 5.6K | 1 | 23 |
| AS22641US | NNPI - Novo Nordisk Pharmaceutical, Inc. | 5.6K | — | 7 |
| AS13572US | LAHEYCLINIC - Lahey Clinic, Inc. | 5.6K | — | 5 |
| AS46784US | DPW - Davis Polk & Wardwell, LLP | 5.6K | — | 22 |
| AS36563US | TELX-DALLAS - Telx | 5.6K | 65.5K | 5 |
| AS1651US | CABLELYNX - Cablelynx | 5.6K | — | 10 |
| AS396502US | HOTSPOTPR - HOTSPOTPR BROADBAND INTERNET, LLC | 5.6K | 4.1K | 21 |
| AS32922US | ATCCOMMICATIONS - ATC Communications | 5.6K | 2 | 16 |
| AS35932US | SPLN-ASN-2020 - Splash Wireless Internet, LLC | 5.6K | — | 15 |