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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 | 25,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,214 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 9.2K |
| 4.2K |
| 10 |
| AS13438US | VIVIO-TECHNOLOGIES - Vivio Technologies | 9.2K | — | 10 |
| AS21528US | ALASCONNECT - AlasConnect Inc. | 9.2K | 65.5K | 5 |
| AS25967US | OATI-BLM - OPEN ACCESS TECHNOLOGY INTERNATIONAL, INC. | 9.2K | — | 4 |
| AS39960US | BARNES-AND-NOBLE - Barnes & Noble Inc. | 9.2K | — | 30 |
| AS394579US | OKLAHOMA-WESTERN - Oklahoma Western Telephone Company | 9.2K | — | 2 |
| AS21840US | NET3 - WiredISP Inc. | 9.2K | — | 36 |
| AS62759US | RUCLS1 - Reedsburg Utility Commission | 9.2K | — | 5 |
| AS209394US | MWS_RNPP_LON Kyndryl, Inc. | 9.2K | — | 16 |
| AS47096US | COMPISP - Compudyne, Inc. | 9.2K | 32.8K | 20 |
| AS46506US | SIMPLEHELIX - SimpleHelix.com | 9.2K | 65.5K | 16 |
| AS46378US | FSX-350 - FSX HOLDINGS, LLC | 9.2K | 4.1K | 24 |
| AS23394US | PSPINC-BDC - Pacific Software Publishing, Inc. | 9.2K | — | 4 |
| AS53274US | SKYRUNNER-INC - Skyrunner, Inc. | 9.2K | 513 | 28 |
| AS14161US | LANDOLAKES - Land OLakes, Inc. | 9.2K | — | 9 |
| AS3800US | AS3800 - AS3800 LLC | 9.2K | — | 36 |
| AS31998US | KDSNET - Konceptio Data Services LLC | 9.2K | — | 24 |
| AS33287US | COMCAST-33287 - Comcast Cable Communications, LLC | 9.2K | 306 | 339 |
| AS11038US | SALISH-NETWORKS - Salish Networks, Inc. | 9.2K | — | 12 |
| AS33570US | CLOUDPATH - Cloudpath | 9.2K | — | 21 |
| AS19299US | NPC-P1 - The Northern Trust Company | 9.2K | — | 11 |
| AS46416US | BANKONIT - BankOnIT, L.L.C. | 9.2K | 16 | 13 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 9.2K | 65.5K | 12 |
| AS31929US | GREATRIVERENERGY - Great River Energy | 9.2K | — | 5 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS32667US | 7-ELEVEN-NETWORK - 7-Eleven, Inc. | 9.2K | — | 17 |
| AS36600US | FROEDTERT-COMMUNITY-HELATH - Froedtert Memorial Lutheran Hospital, Inc. | 9.2K | — | 4 |
| AS16411US | NREL-AS-NATIONAL-RENEWABLE-ENERGY-LABORATORY - National Renewable Energy Laboratory | 9.2K | 1 | 5 |
| AS19043US | ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD | 9.2K | — | 4 |
| AS393508US | VALLEYINTERNET - PERSONAL NETWORK COMPUTING | 9.2K | — | 26 |
| AS11019US | HAPROXY-TECHNOLOGIES - HAProxy Technologies, Inc. | 9.2K | 21 | 50 |
| AS395226US | SACRAMENTO-COE - Sacramento County Office of Education | 9.2K | 1 | 35 |
| AS22360US | REDHAT-2 - Red Hat, Inc. | 9.2K | 258 | 8 |
| AS54048US | CVIN - Vast Networks | 9.2K | — | 9 |
| AS16788US | TCW-AR - The Computer Works of Arkansas, Inc. | 9.2K | — | 36 |
| AS11537US | INTERNET2-RESEARCH-EDU - Internet2 | 9.3K | 3 | 27 |
| AS11488US | BBN-GW - BBN Technologies Corp. | 9.5K | — | 7 |
| AS46342US | AJGCO - Arthur J. Gallagher & Co. | 9.5K | — | 21 |
| AS30341US | SCTA-ASN - South Central Telephone Association | 9.5K | — | 3 |
| AS393451US | ONLIGHTAURORA - On Light Aurora | 9.5K | — | 6 |
| AS397295US | CITYOFPALOALTO - City of Palo Alto | 9.5K | — | 3 |
| AS399310US | SOUTH-SOUND-911 - South Sound 911 | 9.5K | — | 26 |
| AS400784US | RECTITUDE-WOODLANDS - Rectitude 369, LLC | 9.5K | — | 6 |
| AS13537US | MEGACOLO - Mega Colocation, Inc. | 9.5K | — | 37 |
| AS6913US | HCSNET-ASNBLK - Hayes Computer Systems | 9.5K | — | 4 |
| AS399989US | ULTRAONE-01 - ULTRA ONE | 9.5K | — | 25 |
| AS32360US | MONROE-1-BOCES - Monroe #1 BOCES | 9.5K | 1 | 5 |