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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 5.9K |
| — |
| 16 |
| AS397301US | THRIVE-BROADBAND - Thrive Broadband, LLC | 5.9K | 24.6K | 18 |
| AS27069US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 5.9K | — | 17 |
| AS1696US | CITIGROUP-1696 - Citigroup Inc. | 5.9K | — | 23 |
| AS21837US | OPERASOFTWARE - Opera Software Americas LLC | 5.9K | 2 | 12 |
| AS11590US | CUMBERLAND-TECH - Cumberland Technologies International | 5.9K | — | 23 |
| AS29752US | ZEN-SDN - Zenlayer Inc | 5.9K | 9 | 31 |
| AS989US | ANAXA3-ASN - ASPnix | 5.9K | 1 | 24 |
| AS23344US | DSS-EDGE - Disney Worldwide Services, Inc. | 5.9K | 23 | 46 |
| AS32695US | WHITE-RIVER-CONNECT - White River Connect | 5.9K | 73.7K | 12 |
| AS32058US | SBG-AS1 - Sinclair Broadcast Group, Inc. | 5.9K | 4.1K | 23 |
| AS397041US | SEVERANCE-CO-LIGHTGIG - Lightgig Communications LLC | 5.9K | 67.1K | 38 |
| AS16612US | NEIT-AS1 - NEIT Services, LLC | 5.9K | 65.5K | 8 |
| AS996US | JY-MOBILE-COMMUNICATIONS - JY Mobile Communications | 5.9K | 262.1K | 10 |
| AS4136US | QTS - Quality Technology Services, LLC | 5.9K | 65.5K | 6 |
| AS395434US | 46LABS-DAL1 - 46 Labs LLC | 5.9K | — | 20 |
| AS19766US | DRYDEN-FIBER - Dryden Fiber | 5.9K | — | 5 |
| AS400317US | ORCHEST - GoldConnect | 5.9K | 4.1K | 16 |
| AS393340US | COXAUTO - Cox Enterprises Inc | 5.9K | — | 21 |
| AS62712US | STATEHAWAII - State of Hawaii | 5.9K | — | 9 |
| AS29892US | BLUELOCK - BlueLock, LLC | 5.6K | — | 19 |
| AS2728US | GIGSOUTH - Gigsouth, LLC | 5.6K | 10.2K | 24 |
| AS26654US | RFA-IDC - Richard Fleischman & Assoc., Inc. | 5.6K | — | 9 |
| AS6352US | ETRADE-AS - E*TRADE Financial Corporation | 5.6K | — | 19 |
| AS33346US | MONSTERBROADBAND - Point Broadband Fiber Holding, LLC | 5.6K | 4.1K | 9 |
| AS29732US | CTE-ASN1 - Carolina Tractor and Equipment Company | 5.6K | — | 5 |
| AS5726US | INTERWORLD - InterWorld Communications, Inc. | 5.6K | — | 19 |
| AS13598US | DAIMLERTRUCKS-NA-AS - DAIMLER TRUCKS OF NORTH AMERICA LLC | 5.6K | — | 10 |
| AS36538US | SJCNET-ASN - San Jacinto College District | 5.6K | — | 7 |
| AS32829US | PORT-NETWORKS-BALTIMORE - Port Networks, Inc. | 5.6K | — | 11 |
| AS55211US | AS-EDGEUNO-NETWORK - EdgeUno | 5.6K | 65.6K | 11 |
| AS23522US | ASN-HRNET - GigeNET | 5.6K | — | 8 |
| AS11142US | PRECISION-DATA-SOLUTIONS - Precision Data Solutions, LLC | 5.6K | 65.5K | 5 |
| AS399606US | IMAGINGBAY - Imaging Bay, Inc. | 5.6K | 4 | 26 |
| AS20356US | BACAVALLEY-COM - SIERRA COMMUNICATIONS, INC. | 5.6K | — | 13 |
| AS13511US | UNIVI-2-ASN - Univision Communications Inc. | 5.6K | — | 12 |
| AS19648US | LDSCHURCH1 - Corporation of the Presiding Bishop of the Church of Jesus Christ of Latter-day Saints | 5.6K | 196.9K | 11 |
| AS27541US | FTNET - Frontier Telenet | 5.6K | — | 9 |
| AS36222US | WINDWAVE-COMMUNICATIONS - WindWave Communications | 5.6K | 131.1K | 17 |
| AS400690US | KEYSTONE-SOLUTIONS - KSB Industries, LLC | 5.6K | — | 16 |
| AS401918US | HUA-8-ASN-01 - Humboldt Utilities Broadband | 5.6K | 65.5K | 9 |
| AS11681US | INTEGRITY - Integrity Networks | 5.6K | — | 4 |
| AS32402US | ASN-TOWER - Tower Research Capital LLC | 5.6K | — | 7 |
| AS54057US | WST-INET - Wheat State Telephone, Inc. | 5.6K | — | 22 |
| AS36502US | CERNER-CORPORATE-AS - Cerner Corporation | 5.6K | — | 6 |
| AS397766US | FDU-CA - Fairleigh Dickinson University | 5.6K | — | 3 |
| AS10392US | NSB1-NET - New Source Broadband | 5.6K | — | 14 |