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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 |
| UMICH-AS-3 - University of Michigan |
| — |
| — |
| 0 |
| AS400997US | AS-WIALON-US - Gurtam Inc. | — | — | 0 |
| AS401101US | THEKNIFECOMPANY-NICKNAME-FOR-ASN - A.G. Russell Knives, Inc. | — | — | 0 |
| AS402496US | REDDOT-BGP - Red | — | — | 0 |
| AS400296US | DART-NET - Snaju Development | — | — | 0 |
| AS399764US | PAN-22-AWS - Palo | — | — | 0 |
| AS400763US | AMS-AUX-AUSTIN - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS399418US | BLUESKYNETWORK1 - Blue Sky Network, LLC | — | — | 0 |
| AS400309US | VAULT-HOST-SGP - Vault Host | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS402383US | KUMREZ - Kumrez | — | — | 0 |
| AS402103US | MSD321 - MSD321 | — | — | 0 |
| AS402093US | UPHOST - DigitalHost LLC | — | — | 0 |
| AS401953US | SBA1DC - U.S. Small Business Administration | — | — | 0 |
| AS399583US | OPM-AZURE - Office of Personnel Management | — | — | 0 |
| AS401603US | AS-THREELANTERNS - Three Lanterns LLC | — | — | 0 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS6156US | SPRINTLINK-NYSERNET7 - SPRINT, Business Serices Group | — | — | 0 |
| AS8062US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS7966US | HARBOR - Harbor Communications | — | — | 0 |
| AS7739US | AUTOWEB - AutoWeb Interactive | — | — | 0 |
| AS6008US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS7269US | ONESOURCE - OneSource Information Services,Inc | — | — | 0 |
| AS7240US | URAEUS - Uraeus Consulting | — | — | 0 |
| AS7132US | SBIS-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS7158US | NETFEED-AS - NetEx Online Services | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS6981US | AS11456 - Windstream Communications LLC | — | — | 0 |
| AS5150US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS403032US | RDOFFUTTCO-AS - R.D. | — | — | 0 |
| AS6007US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |
| AS6464US | FUTURELABS - FutureLabs, Inc. | — | — | 0 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS5949US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS5900US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5899US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5832US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5866US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5695US | MAILROOM-NT - Allen Bradley Inc. | — | — | 0 |
| AS5684US | GANNETT-NET - Gannett Company, Inc. | — | — | 0 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5925US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS132US | WPAFB-CSD-NET-AS - Air Force Systems Networking | — | — | 0 |