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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| — |
| — |
| 0 |
| AS110US | XAIT-AS - Xerox Advanced Information Technology | — | — | 0 |
| AS118US | DNIC-AS-00118 - United States Department of Defense (DoD) | — | — | 0 |
| AS134US | CORONA-GW-AS - Fleet Analysis Center | — | — | 0 |
| AS182US | MERIT-AS-2 - Merit Network Inc. | — | — | 0 |
| AS220US | OOALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS236US | MERIT-AS-13 - Merit Network Inc. | — | — | 0 |
| AS238US | MERIT-AS-15 - Merit Network Inc. | — | — | 0 |
| AS244US | DNIC-AS-00244 - United States Department of Defense (DoD) | — | — | 0 |
| AS259US | SCUBED-AS - SCUBED | — | — | 0 |
| AS280US | NTTA-280 - NTT America, Inc. | — | — | 0 |
| AS298US | RADC-LONEX-AS - Air Force Systems Networking | — | — | 0 |
| AS301US | C3PO-AS - Air Force Systems Networking | — | — | 0 |
| AS307US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS310US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS312US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS313US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS393US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS401US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS418US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS432US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS459US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS476US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS508US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS509US | DNIC-AS-00509 - United States Department of Defense (DoD) | — | — | 0 |
| AS581US | AMC-MAF-C2-ENCLAVES - Air Force Systems Networking | — | — | 0 |
| AS598US | CENTURYLINK-LEGACY-LVLT-598 - Level 3 Parent, LLC | — | — | 0 |
| AS615US | DNIC-AS-00615 - Headquarters, USAISC | — | — | 0 |
| AS626US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS689US | MERIT-AS-31 - Merit Network Inc. | — | — | 0 |
| AS700US | ROKNET-AS - The Boeing Company | — | — | 0 |
| AS751US | MERIT-AS-17 - Merit Network Inc. | — | — | 0 |
| AS1033US | HPE-AMS-CFC - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS1060US | SUNWEST-BANK - Sunwest Bank | — | — | 0 |
| AS1202US | AS1202 - National Aeronautics and Space Administration | — | — | 0 |
| AS1263US | AS1263 - National Aeronautics and Space Administration | — | — | 0 |
| AS1320US | DNIC-AS-1320 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1334US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1340US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1350US | SEARSNET-AS - Sears Technology Services Incorporated | — | — | 0 |
| AS1367US | DNIC-AS-01367 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1392US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1400US | T2-CT-ASC - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1467US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS1468US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS1469US | DNIC-ASBLK-01469-01470 - Headquarters, USAISC | — | — | 0 |
| AS1489US | DNIC-ASBLK-01488-01489 - Headquarters, USAISC | — | — | 0 |