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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. | 218M | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| — |
| 12.3K |
| 3 |
| AS396303US | NATOLAB-LEGACY - Black Mesa Corporation | — | 258 | 3 |
| AS402008US | L7CORE-L7AS01 - L7CORE, LLC | — | 1 | 1 |
| AS218771US | SNARKNET2 Snark Holding Corp. | — | 2 | 2 |
| AS200731US | JSN-AS Jonathan Smith | — | 11 | 11 |
| AS218890US | YuriSystemsLLC Yuri Systems LLC | — | 10 | 10 |
| AS395458US | TATAC-NA-01 - TATA COMMUNICATIONS (AMERICA) INC | — | 1 | 1 |
| AS36757US | DOSOIG - Department of State Office of Inspector General | — | 1 | 1 |
| AS19748US | SECTORLINK - Sector Link LLC. | — | 65.5K | 1 |
| AS211411US | wylie Wylie Fowler | — | 3 | 3 |
| AS1542US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | 256 | 1 |
| AS25759US | F4-NETWORKS - Rozint | — | 1 | 1 |
| AS216320US | Infinirc-LLC Infinirc LLC | — | 1 | 1 |
| AS18932US | STEPBROBD - StepBroBD, Inc. | — | 6 | 6 |
| AS395648US | CARBONNETWORKSOLUTIONS - Carbon Network Solutions LLC | — | 256 | 1 |
| AS21662US | ONGLOBIX - OnGlobix, LLC | — | 65.5K | 1 |
| AS200085US | WEILNET WeilNet, LLC | — | 3 | 3 |
| AS402740US | GRUMPYTOWN-NYC - GRUMPYTOWN | — | 1 | 1 |
| AS54344US | NEXTRAQ-LLC - NexTraq, LLC | — | 1 | 1 |
| AS399477US | RYAN-PUBLIC-ASN - Ryan Companies US, Inc. | — | 256 | 1 |
| AS197346US | SYLANT-ASN Sylant LLC | — | 1 | 1 |
| AS26682US | NYA - ByteNya LLC | — | 1 | 1 |
| AS60614US | OwO-NETWORK OwO Network, LLC | — | 16 | 1 |
| AS402460US | UAMS-SCIENCE-DMZ - University | — | 1 | 1 |
| AS49548US | NSA-NET NSA Networks LLC | — | 34 | 4 |
| AS48818US | AS-NETSER-INC NETSER INC | — | 382 | 127 |
| AS33655US | CMCS - Comcast Cable Communications, LLC | — | 7 | 7 |
| AS399087US | ROOFTOP-NET-01 - Rooftop, LLC | — | 4.1K | 1 |
| AS19388US | TEAM-CYMRU-3 - Team Cymru Inc. | — | 1 | 1 |
| AS200332US | FOLFY-ASN Nolan Trapp | — | 1 | 1 |
| 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 |