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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| MERIT-AS-13 - Merit Network Inc. |
| — |
| — |
| 0 |
| AS110US | XAIT-AS - Xerox Advanced Information Technology | — | — | 0 |
| AS134US | CORONA-GW-AS - Fleet Analysis Center | — | — | 0 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS1597US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1495US | DNIC-ASBLK-01494-01495 - Headquarters, USAISC | — | — | 0 |
| AS298US | RADC-LONEX-AS - Air Force Systems Networking | — | — | 0 |
| AS1340US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1334US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1060US | SUNWEST-BANK - Sunwest Bank | — | — | 0 |
| AS1263US | AS1263 - National Aeronautics and Space Administration | — | — | 0 |
| AS6641US | SPORTSLINE - SportsLine USA Inc. | — | — | 0 |
| AS6627US | GRAPEVINE - Grapevine Systems, Inc. | — | — | 0 |
| AS6447US | ROUTEVIEWS - University of Oregon | — | — | 0 |
| AS689US | MERIT-AS-31 - Merit Network Inc. | — | — | 0 |
| AS6374US | MFS-WEST-AS - MFS Global Network Services, Inc. | — | — | 0 |
| AS6365US | AS6365NET - Internet 1st, Inc. | — | — | 0 |
| AS6202US | NEXTRON - IMV/Internet | — | — | 0 |
| AS19019US | AS-TIERP-19019 - TierPoint, LLC | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS19683US | FORENDATA - Foren Data, Inc. | — | — | 0 |
| AS19641US | TIHC-DC4 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS25665US | EV-CLOUD - Veritas Technologies LLC | — | — | 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |
| AS23178US | MMI-NET - MONEY MANAGEMENT INTERNATIONAL | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS22329US | BAYMOUNTAIN - Flexential Corp. | — | — | 0 |
| AS383US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS21636US | PROMETRIC - Prometric, Inc. | — | — | 0 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS3004US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2990US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS7966US | HARBOR - Harbor Communications | — | — | 0 |
| AS3046US | RICE-AS3046 - Rice University | — | — | 0 |
| AS2382US | WISCNET2-AS - WiscNet | — | — | 0 |
| AS2156US | HPINC - HP Inc. | — | — | 0 |
| AS1918US | DNIC-AS-01918 - United States Department of Defense (DoD) | — | — | 0 |
| AS2001US | AS-NALCO-MPLS - Ecolab, Inc. | — | — | 0 |
| AS4104US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |