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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 |
| AS12014US | AMERICAS-HEALTH-INSURANCE-PLANS - AHIP | — | — | 0 |
| AS12126US | AS-HOSTPERL - HOSTPERL LLC | — | — | 0 |
| AS32451US | TX-CLOUD - BigTech | — | — | 0 |
| AS13455US | ASGROUP1 - Reach Marketing LLC | — | — | 0 |
| AS13488US | 365DC-1 - BroadbandONE, LLC | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS14557US | EGINITY - Eginity, Inc. | — | — | 0 |
| AS13952US | NCI-58-13952 - New College Institute | — | — | 0 |
| AS13502US | VOYA-FINANCIAL - Voya Services Company | — | — | 0 |
| AS13669US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS33269US | VONAGE-BUSINESS - Vonage Business Inc. | — | — | 0 |
| AS10822US | UNISTAR - Unistar Entertainment, Inc | — | — | 0 |
| AS11871US | DUKE-MW-AS11871 - Duke Energy Corporation | — | — | 0 |
| AS4456US | GSNET-NETS - Gulf South Internet Services, Inc. | — | — | 0 |
| AS5359US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5357US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4115US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS5797US | CISPROD-AS - Fiserv Solutions, LLC | — | — | 0 |
| AS3996US | FIRN - Florida Information Resource Network | — | — | 0 |
| AS3995US | IWEB - Interweb Corporation | — | — | 0 |
| AS4037US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS3899US | CHICO-NET - California State University, Chico | — | — | 0 |
| AS5913US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4252US | DNIC-AS-04252 - United States Department of Defense (DoD) | — | — | 0 |
| AS4278US | RISE-IA-1 - JAB Wireless, INC. | — | — | 0 |
| AS5245US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS7812US | AEGISSTAR-ASN1 - Aegis Star Corporation | — | — | 0 |
| AS7813US | NPL - The Northwest PC Link | — | — | 0 |
| AS7891US | BELLSOUTH-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS7881US | IMGIS - IMGIS | — | — | 0 |
| AS63471US | HIDGLOBAL-AS - HID Global Corporation | — | — | 0 |
| AS5871US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5953US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5964US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS18706US | REALNETWORKS - REALNETWORKS LLC | — | — | 0 |
| AS5201US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5107US | ATTIS-ASN5107 - AT&T Enterprises, LLC | — | — | 0 |
| AS5094US | PARAGON-AS - Paragon Cable | — | — | 0 |
| AS17228US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS16967US | SBCIDC-DLLSTX - AT&T Enterprises, LLC | — | — | 0 |
| AS18452US | ALORICA - ALORICA INC | — | — | 0 |
| AS18469US | HP-POLY - HP Inc. | — | — | 0 |
| AS15089US | MASSMUTUAL - Massachusetts Mutual Life Insurance Company | — | — | 0 |
| AS14682US | GGS - GGS Information Services | — | — | 0 |
| AS14838US | WIXCO-INC - Wix.Com, Inc. | — | — | 0 |
| AS14897US | PKS-INVESTMENTS - Purshe Kaplan Sterling Investments, Inc. | — | — | 0 |