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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS393993US | CODBBR01 - City of Daytona Beach | 256 | — | 1 |
| AS393850US | CLEVERSAFE - IBM | 256 | — | 1 |
| AS398331US | 1FBUSA-PROD - 1st Financial Bank USA | 256 | — | 1 |
| AS12162US | DATA-DISTIBUTORS-AS - DATA DISTRIBUTORS | 256 | — | 1 |
| AS31904US | NCWCD-80513 - Northern Water | 256 | — | 1 |
| AS395041US | SFHS-CAPE-GIRARDEAU - Saint Francis Medical Center | 256 | — | 1 |
| AS14874US | PITTQIAO-US - PITTQIAO LLC | 256 | 512 | 3 |
| AS395553US | CCI - Crain Communications Inc. | 256 | — | 1 |
| AS398548US | MCDUSASN02 - McDonald's Corporation | 256 | — | 1 |
| AS46374US | ICNET - Ideal Concepts, Inc. | 256 | — | 1 |
| AS14151US | ASN-ICI-ORG - Investment Company Institute | 256 | — | 1 |
| AS397661US | PILLEN-OFFICE-01 - Pillen Family Farms, Inc. | 256 | — | 1 |
| AS26030US | CYAN-WIRELESS - CYAN Wireless | 256 | 256 | 2 |
| AS11775US | CLOUGIX-11775 - Semina Tempus, LLC | 256 | — | 1 |
| AS32166US | TROUTMANSANDERS - Troutman Pepper Locke LLP | 256 | — | 1 |
| AS139682US | APKSL-AS-AP - Arnold & Porter Kaye Scholer LLP | 256 | — | 1 |
| AS394157US | RFPCO - Roseburg | 256 | — | 1 |
| AS16982US | CANONMI-ASN-MN - Canon Medical Informatics, Inc. | 256 | — | 1 |
| AS13362US | GENERAL-RESEARCH - General Research Laboratories, LLC | 256 | 4 | 5 |
| AS394600US | MZCORP - AppLovin Corporation | 256 | 1 | 2 |
| AS1021US | CVTECH1 - CV Tech | 256 | — | 1 |
| AS400644US | BGPKIT-LLC - BGPKIT LLC | 256 | 1 | 2 |
| AS401219US | COCHISE-CONNECT - Cochise Connect LLC | 256 | 4.1K | 2 |
| AS54371US | METROINET - City of Roseville - Minnesota | 256 | — | 1 |
| AS399447US | ECS-NET-01 - The Purple Guys, L.L.C. | 256 | — | 1 |
| AS40083US | CENT-SQR-INTERNET - American Traffic Solutions, Inc | 256 | — | 1 |
| AS402097US | NTRS-MA5-P1 - The Northern Trust Company | 256 | — | 1 |
| AS27132US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS394246US | VALOR-COMMUNICATION-INC-INDUSTRY - VALOR COMMUNICATION, INC. | 256 | — | 1 |
| AS14073US | NEXTJUMPINC - Next Jump, Inc. | 256 | — | 1 |
| AS393945US | ENPT-I-15 - enfoPoint, LLC | 256 | 65.5K | 3 |
| AS46213US | LS-POWER-ASN-02 - LS Power Development, LLC | 256 | — | 1 |
| AS13844US | SJRH - St. John's Riverside Hospital | 256 | — | 1 |
| AS22657US | ASN30005 - Digital Ignition | 256 | — | 1 |
| AS402127US | TAKOYAKI-NET - Project Takoyaki Technologies | 256 | — | 1 |
| AS396384US | BBNB1796 - Baker Boyer Bancorp | 256 | — | 1 |
| AS399873US | NEO-AS-LAN - NEOGEN Corporation | 256 | — | 1 |
| AS394999US | K0MWB - K0MWB | 256 | 17 | 3 |
| AS33396US | GENERAL-HEALTH-SYSTEMS - GENERAL HEALTH SYSTEM | 256 | — | 1 |
| AS33137US | DATAMARK-INC - Datamark, Inc | 256 | — | 1 |
| AS20296US | EXPEDIA-ARIN - EXPEDIA, INC | 256 | — | 1 |
| AS53516US | ROSENBERG-AND-ESTIS - Rosenberg & Estis P.C. | 256 | — | 1 |
| AS36346US | TOGETHER-INFRA - Together Computer, Inc. | 256 | 65.5K | 2 |
| AS33095US | MAYER-NETWORKS - Mayer Networks Inc | 256 | — | 1 |
| AS395818US | SAFE-PROP - SAFEGUARD PROPERTIES MANAGEMENT, LLC | 256 | — | 1 |
| AS399846US | GOOCHLAND-COUNTY - County of Goochland | 256 | — | 1 |