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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| AERON-01 - Taurus Technology Investment Partners |
| 1K |
| — |
| 4 |
| AS40049US | ESC-2 - Education Service Center, Region 2 | 1K | — | 1 |
| AS35929US | BLS - Bend-La Pine Schools | 1K | 64 | 2 |
| AS46388US | MXI-SOLUTIONS - Max Internet Solutions LLC | 1K | — | 1 |
| AS398068US | ACSC1002 - Automobile Club of Southern California | 1K | — | 4 |
| AS26074US | FRESHDIRECTLLC - Fresh Direct, LLC | 1K | — | 4 |
| AS36655US | THORN-36655 - Thornton Township High Schools District 205 | 1K | — | 1 |
| AS29840US | GRAM-NET2 - Grambling State University | 1K | — | 4 |
| AS397121US | KAMAN-AS-1 - Kaman Corporation | 1K | — | 4 |
| AS22445US | MHK - Mohawk Industries, Inc. | 1K | — | 4 |
| AS54671US | WPCASN - WALSWORTH PUBLISHING COMPANY | 1K | — | 4 |
| AS54748US | HUDSONBAY - Hudson Bay Capital Management LP | 1K | — | 4 |
| AS18482US | CORASN01 - City of Raleigh | 1K | — | 3 |
| AS13471US | AS13471 - PFS Web | 1K | — | 4 |
| AS63445US | CFG - Cetera Financial Group, Inc. | 1K | — | 3 |
| AS22885US | ASI - ADVERTISING SPECIALTY INSTITUTE, INC. | 1K | — | 3 |
| AS32005US | THE-CHURCH-PENSION-GROUP - CHURCH PENSION GROUP SERVICES CORPORATION | 1K | — | 4 |
| AS394832US | ALLCAREHEALTH - AllCare Management Services, LLC | 1K | — | 4 |
| AS32258US | VELOCITY-FUSION - Velocity Fusion | 1K | — | 4 |
| AS398223US | POMONA-01 - Pomona Consulting LLC | 1K | 6 | 10 |
| AS13751US | UAGC - University of Arizona Global Campus | 1K | — | 1 |
| AS3688US | HSS-1 - Hospital for Special Surgery | 1K | — | 3 |
| AS30525US | GLS-CLT1-01 - Global Linking Solutions | 1K | 257 | 6 |
| AS18827US | VGMFORBIN - Forbin | 1K | — | 1 |
| AS219425US | SKYLINE-APP Skyline App LLC | 1K | 339 | 28 |
| AS13724US | MFS-BOS-PHX - Massachusetts Financial Services | 1K | — | 4 |
| AS54072US | ASN-CCC - Central Community College | 1K | — | 4 |
| AS40886US | PRAC - Plymouth Rock Assurance Corporation | 1K | — | 4 |
| AS23296US | LINCARE-HOLDINGS-INC - LINCARE INC | 1K | — | 4 |
| AS26095US | BLUEBIT - BlueBit Networks LLC | 1K | 65.5K | 4 |
| AS26116US | QUIC-CLOUD-CDN - QUIC CLOUD INC. | 1K | — | 4 |
| AS1035US | KMB4 - Kimberly-Clark Corporation | 1K | — | 3 |
| AS19250US | JWS-ASN-01 - John Wiley & Sons, Inc. | 1K | — | 2 |
| AS395174US | IMDC-APAC - Iron Mountain Data Center | 1K | 4.4K | 12 |
| AS10896US | VERIFONE - Verifone, Inc. | 1K | — | 4 |
| AS394001US | RRISD-AS-1 - Round Rock Independent School District | 1K | — | 3 |
| AS53760US | XT-NEWORLEANS - Xenir, LLC | 1K | — | 2 |
| AS17026US | SHRSS-ASN-01 - Seminole Hard Rock Support Services,LLC | 1K | — | 3 |
| AS40335US | WBTSNY-AS - Watchtower Bible and Tract Society of New York, Inc. | 1K | 65.5K | 2 |
| AS399411US | FSI-23 - Froedtert South, Inc. | 1K | — | 3 |
| AS20197US | NCRC-KANNAPOLIS - Castle & Cooke North Carolina, LLC | 1K | — | 3 |
| AS393307US | CHSNJ-ASN1 - Cooper University Hospital | 1K | — | 2 |
| AS30224US | DISNEY-ABCBCS-NY - Disney Worldwide Services, Inc. | 1K | — | 1 |
| AS393837US | VNTX - VERONA NETWORKS LLC | 1K | 65.5K | 2 |
| AS23094US | YELLOWBOOK - hibu inc. | 1K | — | 4 |
| AS198420US | Netly Netly LLC | 1K | — | 4 |
| AS399110US | DATACANOPY-DB-HOU3 - Data Canopy Colocation, LLC | 1K | — | 4 |