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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 |
| AS402601US | PENLIGHT - Penlight | — | — | 0 |
| AS402605US | TSFT - TSFT | — | — | 0 |
| AS402617US | JUMPSERVERN - Jumpservern | — | — | 0 |
| AS402670US | SCITIX-USA-01 - ScitiX | — | — | 0 |
| AS402713US | PCNA-ASN-01 - PCNA | — | — | 0 |
| AS402747US | HL-ASN - Health100 | — | — | 0 |
| AS402820US | TECHSTACKING - Techstacking | — | — | 0 |
| AS402879US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402884US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402885US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402914US | NAT-SOLUTIONS - NAT | — | — | 0 |
| AS402979US | VSL-VORTEX-01 - Visionary | — | — | 0 |
| AS402982US | MDM-NET-1 - MODULAR | — | — | 0 |
| AS403012US | NLH-01 - NetLinkHost | — | — | 0 |
| AS403014US | STRIKE-AS-01 - Strike | — | — | 0 |
| AS403030US | ORIOLES-ASN - Baltimore | — | — | 0 |
| AS403045US | LUCKYFIBER - Lucky | — | — | 0 |
| AS403051US | MSUTEXAS - Midwestern | — | — | 0 |
| AS403119US | BEDEIR-NET - Tarick | — | — | 0 |
| AS403137US | OPENRELAY - OpenRelay | — | — | 0 |
| AS403154US | MOTORCITY-NETWORKS - MotorCity | — | — | 0 |
| AS403161US | NPAC-NNC-FRS-01 - Nexus | — | — | 0 |
| AS403171US | DATABRICKS - Databricks, | — | — | 0 |
| AS403179US | DABUSINESS - Da | — | — | 0 |
| AS403192US | SCRMC-UNITI-01 - South | — | — | 0 |
| AS403194US | SEIU-COGENT - Service | — | — | 0 |
| AS403202US | LANESENIORGUIDELLC - The | — | — | 0 |
| AS10US | CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC) | — | — | 0 |
| AS93US | NTTA-93 - NTT America, Inc. | — | — | 0 |
| AS181US | MERIT-AS-1 - Merit Network Inc. | — | — | 0 |
| AS208US | DNIC-AS-00208 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS230US | MERIT-AS-7 - Merit Network Inc. | — | — | 0 |
| AS242US | SSSD-AS - SUPSHIP | — | — | 0 |
| AS285US | DNIC-AS-00285 - Headquarters, USAISC | — | — | 0 |
| AS396US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS426US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS428US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS441US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS442US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS453US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS487US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS497US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS520US | COINSDISNET3 - Coins Community Online Intelligence System | — | — | 0 |
| AS554US | CALINET-AS - California Internet Federation | — | — | 0 |
| AS574US | PSC-TEST-AS - Pittsburgh Supercomputing Center | — | — | 0 |
| AS576US | DNIC-AS-00576 - United States Department of Defense (DoD) | — | — | 0 |