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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS192US | ROCHINSTTECH - Rochester Institute of Technology | — | — | 0 |
| AS200US | CENTURYLINK-LEGACY-LVLT-200 - Level 3 Parent, LLC | — | — | 0 |
| AS207US | CLI-GW-AS - Computational Logic, Inc. | — | — | 0 |
| AS246US | ASIFICS-GW-AS - Air Force Systems Networking | — | — | 0 |
| AS266US | AS-ITDS - IT Digital Services LLC | — | — | 0 |
| AS410US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS429US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS438US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS445US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS448US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS466US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS471US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS474US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS475US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS481US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS510US | INTERNET - Voya Investment Management LLC | — | — | 0 |
| AS526US | DNIC-AS-00526 - Headquarters, USAISC | — | — | 0 |
| AS527US | DNIC-AS-00527 - United States Department of Defense (DoD) | — | — | 0 |
| AS556US | CALREN-AS - USC/Information Sciences Institute | — | — | 0 |
| AS563US | HPINC - HP Inc. | — | — | 0 |
| AS573US | DNIC-AS-00573 - United States Department of Defense (DoD) | — | — | 0 |
| AS579US | NETCIERGE-01 - Netcierge, LLC | — | — | 0 |
| AS583US | GDSS-22AF-AS - Air Force Systems Networking | — | — | 0 |
| AS595US | CENTURYLINK-LEGACY-LVLT-595 - Level 3 Parent, LLC | — | — | 0 |
| AS610US | AS-HERE-US1 - HERE North America LLC | — | — | 0 |
| AS639US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS644US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS646US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS652US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS655US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS657US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS816US | MOONV6 - Verizon Business | — | — | 0 |
| AS898US | SDDC-CLOUD-PEERING - SD Data Center | — | — | 0 |
| AS966US | CABLE-FIBERLINK - CABLE & FIBERLINK | — | — | 0 |
| AS995US | SMTECH - SM Tech Solutions Corp | — | — | 0 |
| AS1000US | PISL-24-1000 - CORIX NETWORKS | — | — | 0 |
| AS1013US | BFIL - Bernardi Family Investments, LLC | — | — | 0 |
| AS1238US | ICM-MALAYSIA - US Sprint | — | — | 0 |
| AS1283US | COGENT-1283 - Cogent Communications, LLC | — | — | 0 |
| AS1343US | NIMBUS - Cisco Systems Cloud Division | — | — | 0 |
| AS1377US | DNIC-AS-01377 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1391US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1397US | T2-JC-CFE - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1427US | ALION20706 - Alion Science and Technology Corporation | — | — | 0 |
| AS1456US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS1473US | DNIC-AS-01473 - Headquarters, USAISC | — | — | 0 |