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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| 0 |
| AS401208US | EPHRON-INC - Ephron, Inc. | — | — | 0 |
| AS400191US | INDENT - Indent Solutions | — | — | 0 |
| AS401042US | PUBLIC-ASN-REQUEST - Summit Securities Group LLC | — | — | 0 |
| AS400612US | NETWORK-SERVICES - Qingye | — | — | 0 |
| AS400793US | AS-APEXLOOP - Apex Loop LLC | — | — | 0 |
| AS402871US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS58722US | CINL-58722 - SoundStack Technologies, LLC | — | — | 0 |
| AS393955US | WIRELESS-PARTNERS-LLC - Wireless Partners LLC | — | — | 0 |
| AS394214US | SANMAR-AS - San Mar Corporation | — | — | 0 |
| AS393882US | TISDCS-ASN - TISDCS | — | — | 0 |
| AS393916US | AIR-LINK - Air Link Rural Broadband, LLC | — | — | 0 |
| AS394039US | BJCHE-2 - Memorial Hospital | — | — | 0 |
| AS215327US | Altare Altare AI LLC | — | — | 0 |
| AS212364US | THEO-AS Theophilus Bassaw-Koomson | — | — | 0 |
| AS394524US | QSCEND - QScend Technologies, Inc. | — | — | 0 |
| AS201994US | AMETEK-LDC AMETEK Inc. | — | — | 0 |
| AS199465US | feiya FeiYa Network LTD. | — | — | 0 |
| AS394226US | UNINORTH - Unifi North LLC | — | — | 0 |
| AS211420US | kryptoslogic Kryptos Logic LLC | — | — | 0 |
| AS393744US | KYMETA-AS-01 - Kymeta Corporation | — | — | 0 |
| AS218159US | PROTIUM-NETWORK Protium Network LLC | — | — | 0 |
| AS393343US | RW-SHANHS - Ranch WiFi LLC | — | — | 0 |
| AS393807US | AS-INTULSE-VA - Intulse, Ltd | — | — | 0 |
| AS62505US | AS-PHX - Noble Systems Corporation | — | — | 0 |
| AS62481US | TRUIST-ASN-62481 - Truist Financial Corporation | — | — | 0 |
| AS54908US | DEVONCORP2 - Devon Energy Corporation | — | — | 0 |
| AS55074US | DIALOGTECH-EAST - Invoca, Inc. | — | — | 0 |
| AS400993US | SSGAS-01 - Silver Stratus Global LLC | — | — | 0 |
| AS395168US | CHISHOLM BROADBAND - Chisholm Broadband LLC | — | — | 0 |
| AS53982US | GILTGROUPE-AS - Hudson's Bay Company | — | — | 0 |
| AS394937US | ATC - Windstream Communications LLC | — | — | 0 |
| AS394892US | AMYSKITCHEN - Amy's Kitchen, Inc. | — | — | 0 |
| AS394804US | JOERENDELL - Joerendell LLC | — | — | 0 |
| AS394849US | MSUBILLINGS - Montana State University - Billings | — | — | 0 |
| AS396150US | NBBJ-GLOBAL - NBBJ LP | — | — | 0 |
| AS396149US | ASHIX-RS - Cloudie Networks LLC | — | — | 0 |
| AS395529US | RUDOLPHTECH - Rudolph Technologies, Inc. | — | — | 0 |
| AS403201US | STEFAN - Austin | — | 1 | 1 |
| AS219023US | XELXVEX XELXVEX GLDOBAL INC | — | — | 0 |
| AS218869US | ORG-PGL22-AS ProWave Groups LLC | — | — | 0 |
| AS214370US | AS-MEHARBE meharbe networks, llc | — | — | 0 |
| AS218171US | ORG-LWL10-AS LUMENWAVE WIRELESS LLC | — | — | 0 |
| AS200243US | PRIVOXY-AS PRIVOXY SOLUTIONS, LLC | — | — | 0 |
| AS199299US | FREEFOXCONNECT FST Networks LTD | — | — | 0 |
| AS64270US | PACIFICRACK - QuadraNet Enterprises LLC | — | — | 0 |
| AS206719US | Slipstream IT Answers LLC | — | — | 0 |