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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| — |
| 256 |
| 1 |
| AS36096US | PAGEROUS - PAGEROUS, LLC | — | 2 | 2 |
| AS200731US | JSN-AS Jonathan Smith | — | 11 | 11 |
| AS4296US | CENTURYLINK-MTIPS3-BUR - CenturyLink Communications, LLC | — | 0 | 3 |
| AS21820US | V64U - V6 FOR YOU LLC | — | 1 | 1 |
| AS216320US | Infinirc-LLC Infinirc LLC | — | 1 | 1 |
| AS207618US | DORIDIAN-AS Mark Dietzer | — | 257 | 2 |
| AS53841US | RAMHOST - RAM Host | — | 12.3K | 3 |
| AS400745US | VC-ASN-1 - Vista Computing, LLC | — | 65.5K | 1 |
| AS401600US | SCN-RESEARCH - sc Network | — | 256 | 1 |
| AS200329US | HYPERTOAST-AS Monil Chheda | — | 3 | 3 |
| AS400177US | RC - rootcloud LLC | — | 4.3M | 19 |
| AS396303US | NATOLAB-LEGACY - Black Mesa Corporation | — | 258 | 3 |
| AS21939US | PCCUA-AS - Phillips Community College of the University of Arkansas | — | 260 | 2 |
| AS210562US | WURZELLOS WURZELLOS LLC | — | 259 | 4 |
| AS40893US | ASN-NA-XIPE - Xipe Networks | — | 17 | 2 |
| AS60614US | OwO-NETWORK OwO Network, LLC | — | 16 | 1 |
| AS54118US | RRI-FMT2-01 - Robbins Research International Inc | — | 1 | 1 |
| AS401671US | ACCESSPARKS-POPS - ACCESSPARKS LLC | — | 80 | 39 |
| AS395556US | TRI-CORP - Trident Seafoods Corporation | — | 4 | 4 |
| AS11US | HARVARD - Harvard University | — | — | 0 |
| AS67US | SDC-PRC-AS - Unisys Corporation | — | — | 0 |
| AS83US | DNIC-AS-00083 - Headquarters, USAISC | — | — | 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 |