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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 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.
32,210 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS396094US | PERPETUAL-STORAGE-INC - Perpetual Storage, Inc. | 256 | — | 1 |
| AS25913US | ASI-DCO-AS-109 - APPLIED SYSTEMS, INC | 256 | — | 1 |
| AS27238US | KANE - Kane Warehousing, Inc | 256 | — | 1 |
| AS33112US | ACI-BGP - Arch Coal Inc | 256 | — | 1 |
| AS399613US | SMESTADTECH-01 - Smestad Tech LLC | 256 | 3 | 3 |
| AS14748US | BIG5CORP - Big 5 Corp. | 256 | — | 1 |
| AS393638US | MESQ-TX - City of Mesquite Texas | 256 | 1 | 2 |
| AS6629US | NOAA-SILVERSPRING - National Oceanic and Atmospheric Administration | 256 | 1K | 2 |
| AS40704US | DLFI - Delphi Capital Management, Inc. | 256 | — | 1 |
| AS394650US | CPG-ASN1 - TransCanada Pipelines Limited | 256 | — | 1 |
| AS398330US | ABERYTHMIC - Aberythmic, LLC | 256 | 16 | 2 |
| AS401724US | HAMILTON-CONNECTS - Hamilton Connects | 256 | 65.5K | 2 |
| AS62501US | SA10 - Security Arsenal | 256 | 1 | 2 |
| AS197884US | Adios Adios Global LLC | 256 | — | 1 |
| AS63379US | MNSCA - Sun Country Airlines | 256 | — | 1 |
| AS23347US | ZYC - ZYC Network LLC | 256 | 263 | 6 |
| AS393647US | OFS-NORCROSS - OFS FITEL, LLC | 256 | — | 1 |
| AS4182US | MLSLI-2 - MLSListings inc. | 256 | — | 1 |
| AS17068US | ASN-OMIG - Ohio Mutual Insurance Company | 256 | — | 1 |
| AS1315US | IPFS - Imperial PFS | 256 | — | 1 |
| AS7805US | ICD - ICD GROUP, INC. | 256 | — | 1 |
| AS394251US | CFF - Cystic Fibrosis Foundation | 256 | — | 1 |
| AS395835US | AJA-ASN - AJ Antunes & Co | 256 | — | 1 |
| AS11387US | LAC - La Curacao | 256 | — | 1 |
| AS401891US | UNIVERSAL-BROADBAND-AS - AeroSurf | 256 | — | 1 |
| AS20274US | FVCC-AS - Flathead Valley Community College | 256 | — | 1 |
| AS30394US | JENNISON - Jennison Associates LLC | 256 | — | 1 |
| AS395284US | SHENKMANCAPITAL - Shenkman Capital Management, Inc. | 256 | — | 1 |
| AS22507US | SPROUTS - Sprouts Farmers Market | 256 | — | 1 |
| AS402096US | NTRS-LD5-P1 - The Northern Trust Company | 256 | — | 1 |
| AS18893US | SELECT-EQUITY - Select Equity Group, Inc. | 256 | — | 1 |
| AS36036US | M-FINANCIAL - M Financial Group | 256 | — | 1 |
| AS48118US | ARIES-INVESTMENTS-AS Aries Investments LLC. | 256 | — | 1 |
| AS32493US | CUREMD - CureMD Corp. | 256 | — | 1 |
| AS401337US | PLOVER - Plover LLC | 256 | 4.1K | 2 |
| AS400947US | SMC-ASN - Shannon Medical Center | 256 | — | 1 |
| AS23359US | WLNYASN - WLNY-TV Inc | 256 | — | 1 |
| AS22531US | UDI-SMY-01 - United Distributors, Inc. | 256 | — | 1 |
| AS400134US | BON-ASN-01 - Balance of Nature | 256 | — | 1 |
| AS394174US | AIDC - American International Distribution Corporation | 256 | — | 1 |
| AS393352US | CITY-OF-LAREDO - CITY OF LAREDO | 256 | — | 1 |
| AS26431US | HAPPYPEERING - Happy Telecommunications LLC | 256 | 32 | 3 |
| AS47037US | SCOUTDNS-AS1 - ScoutDNS | 256 | — | 1 |
| AS394552US | TRSTPT-AS - TrustPoint International | 256 | — | 1 |
| AS62784US | MIO-AS - MIO Partners, Inc. | 256 | — | 1 |
| AS12215US | RAVANALLC01 - Right Ascension, Inc. | 256 | — | 1 |