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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 16.6K |
| 1 |
| 3 |
| AS62658US | WYAN-AS - City of Wyandotte | 16.6K | — | 14 |
| AS10732US | TIERRANET - TierraNet Inc. | 16.6K | — | 3 |
| AS7091US | VIANET-ASN - Next Level Connect | 16.6K | — | 2 |
| AS46426US | HART-COMMUNICATIONS - HART COMMUNICATIONS, INC. | 16.6K | — | 16 |
| AS26097US | LABYRINTH - Labyrinth Solutions Inc | 16.6K | — | 30 |
| AS27530US | CORNEJO - IBM | 16.6K | — | 2 |
| AS33481US | BELWAVE-COMMUNICATIONS - BELWAVE COMMUNICATIONS, INC. | 16.6K | 65.5K | 8 |
| AS21545US | KCOENET - Kings County Office of Education | 16.6K | — | 4 |
| AS2901US | OGT-AS - Oso Grande Technologies, Inc. | 16.4K | 65.5K | 19 |
| AS394289US | HOPE-COLLEGE - Hope College | 16.4K | — | 1 |
| AS26174US | SVSU - Saginaw Valley State University | 16.4K | — | 1 |
| AS14818US | CYBERMESA-ASN - Cyber Mesa Computer Systems, Incorporated | 16.4K | 65.5K | 2 |
| AS13857US | ONLINEMAC - Online Northwest | 16.4K | 65.5K | 10 |
| AS36050US | FLOKY - Fifth Third Bank | 16.4K | — | 34 |
| AS4991US | COGENT-4991-4994 - Cogent Communications, LLC | 16.4K | — | 1 |
| AS8034US | WORLDNET5-10 - AT&T WorldNet | 16.4K | — | 1 |
| AS46313US | WAL-MART4 - Wal-Mart Stores, Inc. | 16.4K | — | 23 |
| AS23155US | HTC-NET - HARRISONVILLE TELEPHONE | 16.4K | — | 4 |
| AS5101US | LEECOUNTYSCHOOLS - The School District of Lee County | 16.4K | — | 1 |
| AS54813US | GREYSTONE-POWER - GREYSTONE POWER CORPORATION, AN ELECTRIC MEMBERSHIP CORPORATION | 16.4K | — | 2 |
| AS22054US | HOOD-CANAL - Hood Canal Communications | 16.4K | — | 6 |
| AS4911US | CENTURYLINK-LEGACY-QWEST-SPA-MARION - CenturyLink Communications, LLC | 16.4K | — | 1 |
| AS14131US | DATAYARD - DataYard | 16.4K | — | 2 |
| AS40918US | DIODE-DILLER - Diode Cable Company | 16.4K | — | 33 |
| AS11579US | LANLINE - LANline Communications Inc | 16.4K | — | 1 |
| AS14628US | SMUD-ELECTRIC - Sacramento Municipal Utility District | 16.4K | — | 25 |
| AS26873US | QCOL-AS - QCOL INC | 16.4K | 65.5K | 18 |
| AS63092US | ALEA - Alabama Law Enforcement Agency | 16.4K | — | 1 |
| AS6479US | MCHENRY - McHenryCom Company | 16.4K | 65.5K | 2 |
| AS399702US | TFN - Trace Fiber Networks, LLC. | 16.4K | — | 3 |
| AS32629US | CITY-OF-CHARLOTTE-ASN - City of Charlotte | 16.4K | 256 | 2 |
| AS23241US | USA-ICS - Nu Skin International, Inc. | 16.4K | — | 1 |
| AS14750US | SIERRA-TEL-INTERNET - Sierra Tel Internet | 16.4K | — | 3 |
| AS30497US | GTBAS - Global Telecom Brokers | 16.4K | — | 64 |
| AS16423US | NETTOGO-BLK - NETTOGO | 16.4K | 65.5K | 4 |
| AS19008US | PSCI - Perry-Spencer Communications, Inc. | 16.4K | 65.5K | 4 |
| AS31875US | JACKSON-CO-REMC - Jackson County Rural Electric Membership Corporation | 16.4K | 65.5K | 8 |
| AS25843US | EVOLVEIP - EvolveIP, LLC | 16.4K | 66K | 27 |
| AS6253US | PRUASN - The Prudential Insurance Company of America | 16.4K | — | 22 |
| AS395379US | SCIREMC - SCI REMC | 16.4K | 65.5K | 4 |
| AS17185US | D102-PHL-1 - Data102 | 16.4K | 65.5K | 8 |
| AS16426US | CITYOFCOLUMBUSOHIO - City of Columbus | 16.4K | — | 3 |
| AS393273US | ESC17-AS - Education Service Center, Region 17 | 16.4K | — | 1 |
| AS394303US | BIGSCOOTS - BigScoots | 16.4K | — | 11 |
| AS398034US | CAU-ASN-14 - Clark Atlanta University | 16.4K | — | 3 |
| AS26638US | MPLS-PUBLIC-SCHOOLS - Minneapolis Public Schools | 16.4K | — | 4 |