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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS399368US | KIRKLAND-ELLIS-RY - Kirkland & Ellis LLP | 512 | — | 2 |
| AS30471US | RALEIGH-ENTERPRISES - Raleigh Film & Television Studios, Inc. | 512 | — | 2 |
| AS46566US | CCS - CAPITAL Card Services, Inc. | 512 | — | 2 |
| AS1082US | HBH-ASN-1 - Zenith American Solutions, Inc. | 512 | — | 2 |
| AS393366US | CENTRA-5 - Centra Health, Inc. | 512 | — | 2 |
| AS15319US | CSLNA-NJ-ASN - COSCO Shipping Lines (North America) Inc. | 512 | — | 2 |
| AS199783US | PTTECH-AS PassThru Technologies LLC | 512 | — | 2 |
| AS399145US | SUMO-SC - Sumo Capital LLC | 512 | — | 3 |
| AS36309US | LG-NET - LOUIS GLICK INTERNATIONAL LTD. | 512 | — | 2 |
| AS32885US | IHS-ASN-27 - UnityPoint Health | 512 | — | 2 |
| AS23513US | WHALEY - AL WHALEY/SUNNY SIDE COMPUTING | 512 | — | 2 |
| AS397308US | EAB-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS11294US | SHUTTERFLY-LLC - Shutterfly, LLC | 512 | — | 1 |
| AS14057US | TFIC-1 - TENNESSEE FARMERS MUTUAL INSURANCE COMPANY | 512 | — | 2 |
| AS397365US | AS190901 - Blade Broadband | 512 | — | 1 |
| AS396391US | GUILFORD-COLLEGE - Guilford College | 512 | — | 2 |
| AS55111US | CALVERT-COUNTY - Calvert County | 512 | — | 1 |
| AS62628US | ZOOX - Zoox Labs, Inc. | 512 | 3 | 5 |
| AS39989US | WEBSTER-BANK - Webster Bank, National Association | 512 | — | 1 |
| AS396299US | THE-IMAGINE-GROUP - The IMAGINE Group, LLC | 512 | — | 2 |
| AS30018US | RED-GAP-COMMUNICATIONS-INC - Red Gap Communications, Inc. | 512 | — | 2 |
| AS400732US | RIVERNET - RiverNet, LLC | 512 | 4.1K | 3 |
| AS46542US | AVIDTE - Avid Technology, Inc. | 512 | — | 2 |
| AS213550US | JONRADEL Jon Radel | 512 | 3 | 5 |
| AS400699US | KITSAPWIFI - KitsapWiFi | 512 | 4.1K | 3 |
| AS55099US | HRBL-SLC-INTERNET-BGP - Herbalife International of America, Inc. | 512 | — | 2 |
| AS197684US | ASHOSTUA DeRoy LLC. | 512 | — | 1 |
| AS399562US | IZT-CLOUD-UNIVERSAL - IZT Cloud | 512 | — | 2 |
| AS398204US | CITY-OF-STOCKTON - City of Stockton | 512 | — | 2 |
| AS17281US | AS-15 - CONSORTIUM FOR WORKER EDUCATION | 512 | — | 2 |
| AS397362US | HTS-WIRELESS-01 - Hudson Technology Solutions, Inc. | 512 | — | 2 |
| AS54429US | LOCAL-CONNECTIVITY-LAB - Local Connectivity Lab | 512 | 20 | 7 |
| AS398401US | CRONUS - CRONUS COMMUNICATIONS, L.L.C. | 512 | — | 2 |
| AS54822US | R1RCM - Intermedix | 512 | — | 2 |
| AS399285US | CSLICO - Citizens Financial Corporation | 512 | — | 2 |
| AS15331US | BCI-LAB - Blackfoot Telephone Cooperative, Inc. | 512 | 256 | 2 |
| AS399988US | ENC-HOLDING-ASN - ENC Holding Corporation | 512 | — | 2 |
| AS30667US | WHEELERSLC - WHEELER MACHINERY CO. | 512 | — | 2 |
| AS12205US | SCSD - Sachem Central School District | 512 | — | 2 |
| AS26907US | JFG-RACINE-ASN - Johnson Financial Group, Inc. | 512 | — | 2 |
| AS394801US | SFA-ARDC - Stephen F. Austin State University | 512 | — | 1 |
| AS14012US | PNMAC1 - Private National Mortgage Acceptance Company LLC | 512 | — | 2 |
| AS399392US | FIREDOG-AS399392 - FIRE DOG SSC, LLC | 512 | 4.1K | 3 |
| AS394575US | AFS-IEP - Accenture Federal Services LLC | 512 | — | 2 |
| AS401256US | WKKC-NETWORKEDGE-ASN - WK Kellogg Business Services LLC | 512 | — | 2 |
| AS399553US | HB-MAIN-ASN - Trustmark Health Benefits | 512 | — | 2 |