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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| 5 |
| 7 |
| AS400470US | REMC10-ASN - Tuscola Intermediate School District | 512 | — | 2 |
| AS398023US | PVHMC-AS - Pomona Valley Hospital Medical Center | 512 | — | 2 |
| AS399419US | PSI-CORE-OH1 - Prime Servers, Inc. | 512 | — | 2 |
| AS26353US | REALNETWORKS - REALNETWORKS LLC | 512 | — | 1 |
| AS30593US | VORNADO-PUBLIC - Vornado Realty Trust | 512 | — | 2 |
| AS31965US | COYOTE-LOGISTICS - COYOTE LOGISTICS LLC | 512 | — | 2 |
| AS54700US | LEARN-INTERNAL - LEARN | 512 | — | 2 |
| AS17237US | WPG-CONSULT - Walsh Patel Group Consulting, LLC | 512 | — | 2 |
| AS395617US | PLYMOUTH - Plymouth Poultry Company | 512 | — | 2 |
| AS30450US | CITY-OF-LATHROP - City of Lathrop | 512 | — | 2 |
| AS30474US | IMPRIVATA-DC - Imprivata Inc | 512 | — | 2 |
| AS32617US | STEAK-N-SHAKE - The STEAK N SHAKE Company | 512 | — | 2 |
| AS216435US | PLIMMOBILE-AS Plim Mobile Telecom LLC | 512 | 8.5K | 39 |
| AS55179US | MMA - The Metropolitan Museum of Art | 512 | — | 1 |
| AS400306US | PHEAA-141200 - PHEAA, AES, FedLoan Servicing | 512 | — | 2 |
| AS49427US | NETRC NETRC LLC | 512 | — | 2 |
| AS32284US | CORP-BASHAS-AS1 - Bashas' Inc. | 512 | — | 2 |
| AS394566US | ALEGEUS-AS - ALEGEUS TECHNOLOGIES, LLC | 512 | 1 | 3 |
| AS23096US | CNSL-32-23096 - Controlled Networks Solution LLC | 512 | — | 2 |
| AS32025US | HASBRO - Hasbro, Inc. | 512 | — | 2 |
| AS39239US | PHOENIXNAP-ES PHOENIX NAP, LLC. | 512 | 257 | 4 |
| AS46402US | CO3-METHOD-01 - Company 3 | 512 | — | 2 |
| AS39971US | BELL-IT-SERVICES - Bell IT Services, Inc. | 512 | 1 | 3 |
| AS36217US | IRONPATH - NetActuate, Inc | 512 | 1 | 3 |
| AS22155US | MSAPP - MSA Worldwide, LLC | 512 | — | 2 |
| AS401429US | PRIME-ONE - Prime One Net LLC | 512 | 1.3K | 6 |
| AS395980US | COMCAST-MES - Comcast Cable Communications, LLC | 512 | — | 2 |
| AS32504US | INTELLETRACE - Intelletrace | 512 | 1 | 3 |
| AS26532US | MACLEAN-FOGG - Mac Lean-Fogg Company | 512 | — | 2 |
| AS27029US | SJE-INC - Primex | 512 | — | 2 |
| AS396299US | THE-IMAGINE-GROUP - The IMAGINE Group, LLC | 512 | — | 2 |
| AS393813US | QUANTUM-HEALTH - Quantum Health Inc | 512 | — | 2 |
| AS46411US | IDA-ATL-NET-ASN - LexisNexis Risk Solutions FL Inc. | 512 | — | 2 |
| AS16927US | IHOPKC - IHOPKC | 512 | — | 2 |
| AS40659US | BMW-GDCA-AS - BMW of North America, LLC (Group Data Centers America) | 512 | 2 | 4 |
| AS400699US | KITSAPWIFI - KitsapWiFi | 512 | 4.1K | 3 |
| AS23227US | NIKON - Nikon, Inc. | 512 | — | 2 |
| AS397457US | MSC-TC - MSC Inc | 512 | 1 | 2 |
| AS393512US | AGC-NW - AGC Networks Inc | 512 | — | 2 |
| AS36214US | GENERAL-INFORMATICS - General Informatics, LLC | 512 | — | 2 |
| AS395918US | SIL-MAIN-AS - Sandestin Investments LLC | 512 | — | 2 |
| AS62634US | NGP-TELENETWORKS - NGP Telenetworks, Inc. | 512 | — | 1 |
| AS36833US | DVTRADING-LLC - DV TRADING, LLC | 512 | — | 2 |
| AS54277US | SSG - SUPPORT SERVICES GROUP, INC. | 512 | — | 2 |
| AS18937US | NMC - National Monitoring Center | 512 | — | 2 |
| AS2633US | NAS1-AS - National Academy of Sciences | 512 | — | 2 |