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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. | 211.2M | 21,144 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 49.1M | 3,642 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,945 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,376 |
| 2K |
| — |
| 8 |
| AS32208US | SKL-SERVICES-ASN - SKL Services Inc | 2K | — | 7 |
| AS18867US | AMERICAN-MESSAGING - American Messaging Services L.L.C. | 2K | — | 8 |
| AS398822US | BOSE-CORPORATION-US - Bose Corporation | 2K | — | 1 |
| AS19971US | QCNTR1405N5 - Q CENTER LLC | 2K | — | 1 |
| AS197331US | CLOUVIDER-INC Clouvider, Inc. | 2K | — | 8 |
| AS15148US | BLACKBAUD-ASN - Blackbaud, Inc. | 2K | — | 4 |
| AS46484US | TRELLIXANY - Trellix | 2K | 112 | 11 |
| AS394329US | UT-COURTS - STATE OF UTAH COURTS | 2K | — | 3 |
| AS54392US | DECATURTELCO - Decatur Telephone Company | 2K | — | 6 |
| AS36745US | CALERES-INC - Caleres, Inc. | 2K | — | 8 |
| AS19730US | BMEAS-A00001 - BENCHMARK INTERNET GROUP | 2K | — | 6 |
| AS26131US | TMC1 - Harley-Davidson, Inc. | 2K | — | 8 |
| AS22648US | SWG - Southwest Gas Corporation | 2K | — | 2 |
| AS22511US | PRESIDIONS - Presidio Networked Solutions LLC | 2K | — | 8 |
| AS46445US | TELPAGE-EMP - TELPAGE | 2K | — | 1 |
| AS399307US | STERLING-MA - Town of Sterling | 2K | 65.5K | 3 |
| AS40187US | GIGSTREEM-WARP2BIZ - GiGstreem | 2K | — | 8 |
| AS53591US | YTELL - Ytel, Inc. | 2K | 81.9K | 4 |
| AS18551US | ROTHINC - Rothschild & Co US Inc. | 2K | — | 2 |
| AS401174US | CA-CDT-MMBI-01 - State of California, Department of Technology | 2K | 65.5K | 4 |
| AS21951US | STOLAF - St. Olaf College | 2K | 256 | 3 |
| AS35971US | MYRTLE - CompuNet, Inc. | 2K | 4.1K | 3 |
| AS8029US | MSERVE-AS - Microserve, Inc. | 2K | — | 2 |
| AS397911US | WIFISQUARED - Wifi Squared | 2K | — | 6 |
| AS40732US | TOLEDO-PUBLIC-SCHOOLS - Toledo Public Schools | 2K | — | 1 |
| AS14588US | ATVI-BEENOX-CAN - Activision Publishing, Inc. | 2K | — | 5 |
| AS25941US | SUPERCLUBS-25941 - SuperClubs.com | 2K | — | 1 |
| AS35956US | SNOCO - Snohomish County Government | 2K | — | 8 |
| AS14097US | COUNTRYMILE-ASN-01 - Country Mile Wireless, Inc | 2K | — | 1 |
| AS63258US | L7GUARD - Web Hosting, Inc. | 2K | — | 5 |
| AS19918US | LUCASFILM - Lucasfilm Ltd. LLC | 2K | — | 2 |
| AS397866US | ELN-ATL-HQ - EarthLink | 2K | — | 8 |
| AS401326US | BOONE-COOPERATIVE-ADVANTAGE - BCA Connect, LLC | 2K | — | 1 |
| AS14267US | PTCAS14267 - PTC INC. | 2K | — | 8 |
| AS47967US | Pro-Marketing-Central-LLC Pro Marketing Central LLC | 2K | — | 4 |
| AS57872US | PHOENIXNAP-EU PHOENIX NAP, LLC. | 2K | — | 1 |
| AS40833US | NYTD-SEA1 - The New York Times Company | 2K | — | 4 |
| AS46523US | KINETIX-TECH - Kinetix Broadband, LLC | 2K | — | 1 |
| AS397161US | NORTHTEXASFIBER - North Texas Fiber, Inc | 2K | — | 2 |
| AS396881US | DRSERVER1 - drServer.net | 2K | 15 | 16 |
| AS400251US | AS-ONEIDATEL - Oneida Telephone Exchange | 2K | — | 5 |
| AS27197US | PEPB - Princeton Electric Plant Board | 2K | — | 1 |
| AS13880US | ACSL-AS1 - American Century Services, LLC | 2K | — | 6 |
| AS14145US | REGIONS-ASN-3 - REGIONS FINANCIAL CORPORATION | 2K | 1 | 3 |
| AS55219US | SOURCEFIRE-LABS - Cisco Systems, Inc. | 2K | 24 | 12 |
| AS395267US | LSC-COMMUNICATIONS - LSC Communications | 2K | — | 8 |