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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| — |
| — |
| 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 |
| AS8177US | QADAS - Qadas, Inc. | — | — | 0 |
| AS10266US | 1PATH-AS - 1Path | — | — | 0 |
| AS10284US | DIALIP-ASIA - GLOBAL ONE | — | — | 0 |
| AS10317US | CUCINT - Trilegiant Corporation | — | — | 0 |
| AS10377US | SOUNDCHOICE - Sound Choice Communications LLC | — | — | 0 |
| AS10386US | IC-ASN - Internet Connections, Inc. | — | — | 0 |
| AS10433US | USA-NET - USA-Net Corporation | — | — | 0 |
| AS10449US | DISCOVER - DiscoverNet, Inc. | — | — | 0 |
| AS10486US | FASTRANS - Fastrans Logistics, Inc. | — | — | 0 |
| AS10590US | BOOKSTACKS - Book Stacks Unlimited | — | — | 0 |
| AS10621US | FIRSTNETHOU - First Internet | — | — | 0 |
| AS10724US | HECENTER - Harbor Enterprise Center | — | — | 0 |
| AS10729US | BUSINESSPRODUCTS - Business Products | — | — | 0 |
| AS10739US | CYBERNET - CyberNET Engineering | — | — | 0 |
| AS10742US | DENIZ - Deniz Corporation | — | — | 0 |
| AS10767US | HIPERNET-AS - Hiper Net | — | — | 0 |