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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| 8.2K |
| — |
| 1 |
| AS40469US | NEPAWAN - Northeastern Educational Intermediate Unit 19 | 8.2K | — | 1 |
| AS14157US | GENWORTH-MI - GENWORTH FINANCIAL, Inc. | 8.2K | 260 | 6 |
| AS26247US | HCCA - Hamilton-Clermont Cooperative Assn. | 8.2K | — | 18 |
| AS399554US | FOUR-STATES-FIBER - Four States Fiber | 8.2K | 4.1K | 4 |
| AS26894US | NOACSC-AS - Northwest Ohio Area Computer Services Cooperative | 8.2K | — | 1 |
| AS46637US | ROCK-FALLS-FIBERNET - City of Rock Falls | 8.2K | — | 3 |
| AS26860US | SWTC - SWIFTEL COMMUNICATIONS | 8.2K | 65.5K | 2 |
| AS32736US | INFORTECH-001 - Infortech Corporation | 8.2K | — | 32 |
| AS47064US | ESCXV - Education Service Center Region XV | 8.2K | — | 1 |
| AS54291US | SJH-ASN01 - Inspira Medical Centers, Inc. | 8.2K | — | 2 |
| AS27008US | BDC - BendTel | 8.2K | 65.5K | 2 |
| AS18723US | SEAGATE-USA-CA-1 - Seagate Technology LLC | 8.2K | — | 22 |
| AS13986US | ECSIS-HST - ECSIS.NET | 8.2K | — | 2 |
| AS13866US | CCOUNTRY - Computer Country | 8.2K | 4.1K | 8 |
| AS393289US | MERCERU-GA-ASN - Mercer University | 8.2K | — | 1 |
| AS14909US | PNG-TELECOM - PowerNet Global Communications | 8.2K | — | 2 |
| AS8082US | WORLDSITE - Worldsite Networks | 8.2K | — | 1 |
| AS394314US | AKLIZ - Akliz, Inc. | 8.2K | — | 7 |
| AS400718US | FWCS-ASN-01 - Fort Wayne Community Schools | 8.2K | — | 1 |
| AS11017US | CPN - CSN Support Services | 8.2K | 42 | 17 |
| AS15304US | WASHOE-NET - Washoe County | 8.2K | — | 2 |
| AS7024US | PIXELGATE - PixelGate | 8.2K | — | 1 |
| AS33038US | XTT1 - XIT Rural Telephone Cooperative Inc. | 8.2K | 65.5K | 3 |
| AS26748US | AS-HSHS - Hospital Sisters Health Systems | 8.2K | — | 1 |
| AS40944US | MASSCOL - Mass College of Liberal Arts | 8.2K | — | 3 |
| AS30712US | META-SOLUTIONS-DAYTON - META Solutions | 8.2K | — | 17 |
| AS23497US | NCWCOM - NORTH COAST WIRELESS COMMUNICATIONS LLC | 8.2K | — | 32 |
| AS40395US | VIRTBIZ-DALLAS - VIRTBIZ Internet Services | 8.2K | 65.5K | 33 |
| AS22632US | DAKPRO - DakotaPro.biz | 8.2K | — | 2 |
| AS16597US | SPC - South Plains College | 8.2K | — | 2 |
| AS17202US | FGCU-FTM1 - Florida Gulf Coast University | 8.2K | — | 1 |
| AS22601US | BONNPOWERNET - Bonneville Power Administration | 8.2K | 260 | 7 |
| AS397103US | WAVEFLY-AS397103 - REV | 8.2K | — | 3 |
| AS12191US | LEBAN-AS - City of Lebanon - Lebanon Utilities | 8.2K | — | 3 |
| AS54813US | GREYSTONE-POWER - GREYSTONE POWER CORPORATION, AN ELECTRIC MEMBERSHIP CORPORATION | 8.2K | — | 1 |
| AS40284US | GSCBN - Glenwood Springs Community Broadband Network | 8.2K | — | 20 |
| AS18818US | LSUHSCS-NET2 - LSU Health Sciences Center - Shreveport | 8.2K | — | 1 |
| AS23030US | UNIVERSITY-OF-HOUSTON---DOWNTOWN - University of Houston - Downtown | 8.2K | — | 1 |
| AS19945US | GRANBURYISD - Granbury Independent School District | 8.2K | 64 | 2 |
| AS393724US | TTC - Trident Technical College | 8.2K | — | 3 |
| AS14686US | DOUBLEDOG - Double Dog Communications | 8.2K | — | 17 |
| AS12024US | ASN-ACN - Advanced Corporate Network | 8.2K | — | 1 |
| AS11970US | ETEL - e-Tel, LLC | 8.2K | — | 1 |
| AS54488US | QXC-COMMUNICATIONS - QxC Communications, Inc. | 8.2K | — | 7 |
| AS54932US | M3-WIRELESS - M3 Wireless Inc. | 8.2K | — | 32 |
| AS393869US | CMC - COLORADO MOUNTAIN COLLEGE | 8.2K | 256 | 3 |