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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| 0 |
| AS402988US | PRTI - Patriot | — | — | 0 |
| AS402990US | QUICVM-01 - QuicVM | — | — | 0 |
| AS403009US | LOREM-IPSUM - Lorem | — | — | 0 |
| AS403015US | WIRESCOPE - Wirescope, | — | — | 0 |
| AS403020US | HANOVER-AS - Hanover | — | — | 0 |
| AS403027US | COVERTHART-AS-403027 - CovertHart | — | — | 0 |
| AS403055US | LAN-VI - LAN | — | — | 0 |
| AS403077US | ITL-HQ - ITL | — | — | 0 |
| AS403082US | HANDL - HANDL | — | — | 0 |
| AS403099US | CERTUSQUARTZ - CertusQuartz.Com | — | — | 0 |
| AS403115US | AS-2358 - cloudnq | — | — | 0 |
| AS403130US | VC2-1 - VC2 | — | — | 0 |
| AS403144US | MESA-PSC - Metropolitan | — | — | 0 |
| AS403170US | REIZOR - Reizor | — | — | 0 |
| AS403203US | OPTIMESH-EDGE-01 - OptiMesh, | — | — | 0 |
| AS39US | DNIC-AS-00039 - United States Department of Defense (DoD) | — | — | 0 |
| AS117US | ALBM-NET-AS - Lockheed Austin Division | — | — | 0 |
| AS145US | VBNS - Verizon Business | — | — | 0 |
| AS191US | DNIC-AS-00191 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS199US | CENTURYLINK-LEGACY-LVLT-199 - Level 3 Parent, LLC | — | — | 0 |
| AS279US | LVLT-279 - Level 3 Parent, LLC | — | — | 0 |
| AS286US | KPN GTT Communications Inc. | — | — | 0 |
| AS303US | DNIC-AS-00303 - United States Department of Defense (DoD) | — | — | 0 |
| AS308US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS314US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS395US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS397US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS407US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS443US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS450US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS452US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS454US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS455US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS489US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS491US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS514US | DSADC-MECH - United States Department of Defense (DoD) | — | — | 0 |
| AS515US | DNIC-AS-00515 - United States Department of Defense (DoD) | — | — | 0 |
| AS525US | CTNOSC-525-AS - Headquarters, USAISC | — | — | 0 |
| AS531US | DNIC-AS-00531 - Headquarters, USAISC | — | — | 0 |
| AS704US | UUNET - Verizon Business | — | — | 0 |
| AS735US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS742US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS748US | DNIC-AS-00748 - United States Department of Defense (DoD) | — | — | 0 |
| AS765US | DNIC-AS-00765 - United States Department of Defense (DoD) | — | — | 0 |
| AS799US | DNIC-AS-00799 - Headquarters, USAISC | — | — | 0 |
| AS847US | SANTACLARA-IXP - Richmond-IX Corporation | — | — | 0 |