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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5889US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5901US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5906US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5907US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5946US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5961US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5967US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5976US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5998US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6021US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6023US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6055US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6108US | POND - Cascade Communications Group, Inc. | — | — | 0 |
| AS6116US | WB-DUPLEX - Warner Bros. Interactive Entertainment | — | — | 0 |
| AS6138US | CIOE - CIOE, Inc. | — | — | 0 |
| AS6155US | SPRINTLINK-NYSERNET6 - SPRINT, Business Serices Group | — | — | 0 |
| AS6158US | SPRINTLINK-NYSERNET9 - SPRINT, Business Serices Group | — | — | 0 |
| AS6175US | COGENT-6175 - Cogent Communications, LLC | — | — | 0 |
| AS6198US | BATI-MIA - BellSouth Network Solutions, Inc | — | — | 0 |
| AS6218US | MIBX - MIBX, Inc. | — | — | 0 |
| AS6227US | CENTURYLINK-LEGACY-QWEST-PROJECT-LION3 - CenturyLink Communications, LLC | — | — | 0 |
| AS6235US | SMG-NJ - SUMMIT MEDICAL GROUP | — | — | 0 |
| AS6238US | DPSC-AS - Dept. of Public Safety & Corrections | — | — | 0 |
| AS6246US | AVALONTEL - NuWave | — | — | 0 |
| AS6268US | EXPRESS - Mistik Systems | — | — | 0 |
| AS6272US | 6272 - Cogent Communications, LLC | — | — | 0 |
| AS6278US | NOC-BB - Moran Communications Group | — | — | 0 |
| AS6293US | ESKIMO - Eskimo North, Inc. | — | — | 0 |
| AS6299US | TELALINK - Cogent Communications, LLC | — | — | 0 |
| AS6313US | PROMETHEUS - Prometheus Information Corp. | — | — | 0 |
| AS6322US | PCI FIBER ASN-2 - PCI Fiber, LLC | — | — | 0 |
| AS6346US | VUI - Valhalla Unlimited, Inc | — | — | 0 |
| AS6348US | BETTYPLATFORMS - Prodigy Services | — | — | 0 |
| AS6369US | NETRUNNER-6369 - Netrunner Inc | — | — | 0 |
| AS6409US | RESEARCHMAG - Research Holdings, LTD. | — | — | 0 |
| AS6426US | NETCOAST - NETCOAST Communications, Inc. | — | — | 0 |
| AS6440US | EMF-AS - emf.net | — | — | 0 |
| AS6444US | SBSIB - Siemens Business Systems Intranet Backbone | — | — | 0 |
| AS6474US | FLASHNET-AS - SBC IP Communications, Inc. | — | — | 0 |
| AS6496US | COGENT-6496 - Cogent Communications, LLC | — | — | 0 |
| AS6497US | ACQUION - ACQUION, Inc. | — | — | 0 |
| AS6525US | INFO-HIGHWAY - Info-Highway International, Inc | — | — | 0 |
| AS6558US | SKYGATE - DIVERSIFIED COMMUNICATIONS INC | — | — | 0 |
| AS6571US | EGIX-CHAMPAIGN-AS-6571 - Altafiber | — | — | 0 |
| AS6655US | GTE-IM - GTE Interactive Media | — | — | 0 |
| AS6935US | IDG-ISG - IDG Interactive Services Group | — | — | 0 |