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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS395905US | SANDRIDGE - Sandridge Food Corporation | 256 | — | 1 |
| AS11332US | CRESTRON - Crestron Electronics Inc | 256 | — | 1 |
| AS54857US | TQS-PDX-INTERNET - Qorvo US, Inc | 256 | — | 1 |
| AS16855US | DOUGHERTY-DCSS-1 - Dougherty County School System | 256 | — | 1 |
| AS402220US | KIRKLAND-ELLIS-NV - Kirkland & Ellis LLP | 256 | — | 1 |
| AS395491US | RADIAN-GROUP-INC - Radian Group, Inc | 256 | — | 1 |
| AS6434US | PIERPONTSECURITIES - Amherst Pierpont Securities | 256 | — | 1 |
| AS203888US | USKVM - USKVM LLC | 256 | 16 | 2 |
| AS402836US | PRIMITIVE - primitive.dev | 256 | — | 1 |
| AS11695US | THESTREET-DOT-COM - TheStreet.Com | 256 | — | 1 |
| AS25894US | MX2TECH - MX2 Technology, Inc | 256 | — | 1 |
| AS33304US | RACETRAC - RaceTrac Petroleum, Inc. | 256 | — | 1 |
| AS402041US | ASN-FIBERFED-GEO1 - Trinity Network Solutions | 256 | — | 1 |
| AS401178US | UNEPIC-NETWORKS - Unepic Networks | 256 | — | 1 |
| AS19344US | BESOV - Sovereign-Sol LLC | 256 | — | 1 |
| AS46348US | FOSTER-ASN01 - Foster Poultry Farms | 256 | — | 1 |
| AS31935US | APOG-NORFOLK - Apogee Telecom Inc. | 256 | — | 1 |
| AS30485US | NASCAR-CLT-PROD - NASCAR Holdings, LLC | 256 | — | 1 |
| AS401517US | APEX-EQUINIX-ASN - Apex Systems, LLC | 256 | — | 1 |
| AS398540US | COMPASS-MINERALS-01 - Compass Minerals America Inc. | 256 | — | 1 |
| AS30205US | SECURESOCKET - SecureSocket, LLC | 256 | — | 1 |
| AS395884US | TBR01 - Tampa Bay Rays Baseball, Ltd. | 256 | — | 1 |
| AS62863US | AS62863 - PRAIRIECARE LLC | 256 | — | 1 |
| AS30416US | WCS - Wildlife Conservation Society | 256 | — | 1 |
| AS395923US | FROST-SCIENCE-MUSEUM - Patrica and Phillip Frost Museum of Science | 256 | — | 1 |
| AS397861US | BROADWAVES - BROADWAVES COMMUNICATIONS | 256 | — | 1 |
| AS393547US | AS393547 - San Diego County Credit Union | 256 | — | 1 |
| AS22509US | BANFIELD - Banfield | 256 | — | 1 |
| AS26552US | PROMCAP - IntraFi LLC | 256 | — | 1 |
| AS394824US | CBU - Christian Brothers University | 256 | — | 1 |
| AS400478US | STMBOYD-NET - Stephen M Boyd Development Limited Liability Company | 256 | 1 | 2 |
| AS11603US | WATERMARK - Watermark Estate Management Services, LLC | 256 | — | 1 |
| AS36740US | VCCC-2 - Volusia County Clerk of the Courts | 256 | — | 1 |
| AS399037US | FB-01 - FOCUS Brands | 256 | — | 1 |
| AS46565US | COC-AS - City of Columbia | 256 | — | 1 |
| AS393592US | IDSD - Bonneville Joint School District no. 93 | 256 | — | 1 |
| AS54568US | BGIM-ASN-2 - Brandywine Global Investments | 256 | — | 1 |
| AS63458US | KGPTEL - KGP Telecommunications, Inc. | 256 | — | 1 |
| AS53663US | ABT-INET - ADAMS BANK & TRUST | 256 | — | 1 |
| AS46425US | SVMH-AS - Salinas Valley Memorial Hospital | 256 | — | 1 |
| AS63312US | BUTTERNUT-ASN - Community Financial System, Inc. | 256 | — | 1 |
| AS394750US | SMKTG - Universal Furniture International Inc. | 256 | — | 1 |
| AS401029US | DEIHS-HOST-01 - Deihs Solutions LLC | 256 | 4.1K | 2 |
| AS13901US | AS-AFILIAS-NRT1 - Afilias, Inc. | 256 | 1 | 2 |
| AS400538US | QSI-NETWORK-SOLUTIONS - QSi Network Solutions | 256 | — | 1 |
| AS399972US | COMMUNITY-BANK-OF-MS - Community Bank | 256 | — | 1 |