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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS40434US | UCIS-AS - Center for Innovation | 256 | — | 1 |
| AS13430US | THEWISP-NWIL - DC COMPUTERS | 256 | — | 1 |
| AS40872US | BERNARDS-NETWORK - Bernards | 256 | — | 1 |
| AS393332US | MCALLENISD-TX - McAllen Independent School District | 256 | — | 1 |
| AS29403US | VERISIGN-AS VeriSign Inc. | 256 | — | 1 |
| AS46835US | CENTRASTATE-MEDICAL-CENTER - Centrastate Medical Center, Inc. | 256 | — | 1 |
| AS402061US | NVRSLINE-AS - NVRS LINE inc. | 256 | 1 | 2 |
| AS18962US | MEDITECH-1 - Medical Information Technology, Inc. | 256 | — | 1 |
| AS36832US | NGL-AS - Network Gibbon LLC | 256 | 256 | 2 |
| AS36177US | EASTWESTBANK - EWB | 256 | — | 1 |
| AS27212US | PERMAR - Per Mar Security | 256 | — | 1 |
| AS394026US | VOS-ASN1 - Village of Schaumburg | 256 | — | 1 |
| AS27474US | IVN-LV - I-View Now, LLC | 256 | — | 1 |
| AS46216US | ICECONSULTING - Ice Consulting | 256 | — | 1 |
| AS23386US | CRYE-LEIKE-REALTORS - Crye Leike Realtors | 256 | — | 1 |
| AS398027US | ASN-BELL2 - Bell Bank | 256 | — | 1 |
| AS401823US | KIRKLAND-ELLIS-BR - Kirkland & Ellis LLP | 256 | — | 1 |
| AS46201US | COYUBA58 - County of Yuba | 256 | — | 1 |
| AS17125US | LOGIS-ASN-01 - Logistics Plus, Inc. | 256 | — | 1 |
| AS397426US | WILSON-HEALTH - Wilson Health | 256 | — | 1 |
| AS22779US | JERICH-EU - Jerich USA Inc. | 256 | — | 1 |
| AS607US | RNM-15-ASN-01 - Revelation Network Management, Inc. | 256 | — | 1 |
| AS399635US | CC-VISA-02 - Cardinal Commerce Corporation | 256 | — | 1 |
| AS398334US | VOCINITY - Tekvizion PVS, Inc. | 256 | — | 1 |
| AS54261US | PHCCNET - Pasco-Hernando State College | 256 | — | 1 |
| AS23026US | SETEC-ASTRONOMY - SETEC ASTRONOMY INC | 256 | 19 | 5 |
| AS400707US | MMH-01 - Melissa Memorial Hospital | 256 | — | 1 |
| AS32711US | WCGNC - Wake County Government | 256 | — | 1 |
| AS394118US | VSSMEDICAL-CT-01 - Sigmund Software, LLC | 256 | 1 | 2 |
| AS11605US | FLUIDSOFT-14 - Fluidsoft Incorporated | 256 | — | 1 |
| AS399120US | DDAF-LOU - Dean Dorton | 256 | 1 | 2 |
| AS398155US | WBR-LA-01 - West Baton Rouge Parish Council | 256 | — | 1 |
| AS399501US | COLPENN - City Of Lancaster | 256 | — | 1 |
| AS397024US | AMGNATIONAL - AMG National Trust Bank | 256 | — | 1 |
| AS393344US | HELIONTECHNOLOGIES - Helion Technologies, Inc | 256 | — | 1 |
| AS402675US | COG - City | 256 | — | 1 |
| AS393409US | HELLOSPOKE - Voitress | 256 | — | 1 |
| AS393948US | GSUSA420 - Girl Scouts of the United States of America | 256 | — | 1 |
| AS36659US | JWD-AS1 - J&B Wholesale Distributing, Inc. | 256 | — | 1 |
| AS395812US | HCBE - Haralson County Board of Education | 256 | — | 1 |
| AS32607US | CANACCORD-GENUITY - Canaccord Genuity LLC | 256 | — | 1 |
| AS970US | KEATONAGLAIR-EHRE-EIN - Keaton Alexander Guger Lair | 256 | 256 | 2 |
| AS62883US | SCCMHA-ASN - Saginaw County Community Mental Health Authority | 256 | 1 | 2 |
| AS396446US | KESTRAFINANCIAL - KESTRA FINANCIAL, INC | 256 | — | 1 |
| AS397878US | DDI-HQ-ASN - DEVELOPMENT DIMENSIONS INTERNATIONAL INC | 256 | — | 1 |
| AS14600US | SKYHIGH-SECURITY - SKYHIGH SECURITY LLC | 256 | — | 1 |