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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS6386US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6403US | OPN - Oregon Public Networking | — | — | 0 |
| AS6437US | NETREX - Netrex, Inc. | — | — | 0 |
| AS6480US | LITLE - LitleNet, LLC | — | — | 0 |
| AS6530US | XENSEI - The Xensei Corporation | — | — | 0 |
| AS6587US | AMICUS-ASN - Amicus Networks | — | — | 0 |
| AS6599US | ICCOM-ASN - Internet Communications | — | — | 0 |
| AS6605US | F4IXNY - F4 Networks | — | — | 0 |
| AS6915US | HCSNET-ASNBLK - Hayes Computer Systems | — | — | 0 |
| AS6923US | OKNET - OKNET Internet Services | — | — | 0 |
| AS6942US | CLARINET - ClariNet Communications Corporation | — | — | 0 |
| AS6962US | DTS-EUROPE - Diplomatic Telecommunications Services | — | — | 0 |
| AS6965US | DTS-SOUTH-ASIAN - Diplomatic Telecommunications Services | — | — | 0 |
| AS6985US | DIXON - Dixon Networking | — | — | 0 |
| AS6996US | ZAYO-CAN-6996 - Zayo Bandwidth | — | — | 0 |
| AS7027US | ENGAGE - ENGAGE games online | — | — | 0 |
| AS7032US | NMB-AS - Micro Focus | — | — | 0 |
| AS7090US | IDNET-AS2 - Innovative Data Services, Inc. | — | — | 0 |
| AS7104US | APC-AS - Accesspoint Corporation | — | — | 0 |
| AS7126US | UNITEDMEDIA - United Media | — | — | 0 |
| AS7156US | AGATE2 - Agate Internet Services, Inc. | — | — | 0 |
| AS7180US | HILINESWHITESTAR - HiLine Internet Services, Inc. | — | — | 0 |
| AS7205US | POINTBREAK - PointBreak Communications SystemsAG | — | — | 0 |
| AS7222US | SBIS-KCSYMO - AT&T Enterprises, LLC | — | — | 0 |
| AS7239US | COMSOURCE-AS - ComSource, Inc. | — | — | 0 |
| AS7248US | SURENET - SureNet Corporation | — | — | 0 |
| AS7288US | PBI-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS7308US | SPRINT-PCS - Sprint PCS (Personal | — | — | 0 |
| AS7415US | ADSAFE-1 - Integral Ad Science, Inc. | — | — | 0 |
| AS7439US | VOYAGER-AS - CoreComm Internet Services Inc | — | — | 0 |
| AS7449US | TIOGA-NET - Tioga Communications | — | — | 0 |
| AS7740US | WJP - WJP Networking | — | — | 0 |
| AS7753US | GREENCLOUD - ipHouse | — | — | 0 |
| AS7827US | ABII-AS - American Business Information | — | — | 0 |
| AS7853US | COMCAST-TELECOMM-2 - Comcast Cable Communications, LLC | — | — | 0 |
| AS7936US | NPDGROUP - The NPD Group Inc. | — | — | 0 |
| AS7944US | DMVOL-ASN - DELMARVA ONLINE LLC | — | — | 0 |
| AS7963US | D20 - D20 Hobbies | — | — | 0 |
| AS8043US | LVLT-8043 - Level 3 Parent, LLC | — | — | 0 |
| AS8049US | POL-AS - Productivity OnLine | — | — | 0 |
| AS8061US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS8074US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | — | — | 0 |
| AS8121US | LAYER42 - TCH Network Services | — | — | 0 |
| AS8125US | CYBERPORTAL-ASN - Cyberport, LLC | — | — | 0 |
| AS8127US | CONNECTEXPRESS - ConnectExpress | — | — | 0 |
| AS8148US | SOURCEWELL - Sourcewell | — | — | 0 |