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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| THUMBTACK - Thumbtack |
| — |
| — |
| 0 |
| AS394956US | MARVELL - Marvell Semiconductor Inc. | — | — | 0 |
| AS394992US | ALACRITYSERVICES2 - Alacrity Services | — | — | 0 |
| AS395023US | PADDOCKPUBLICATIONS - Daily Herald Media Group | — | — | 0 |
| AS395044US | APTLABS-NET - Apt Labs | — | — | 0 |
| AS395099US | MERCHANT-SOLUTIONS-395099 - Worldpay, LLC | — | — | 0 |
| AS395318US | GAP-INC - The Gap, Inc. | — | — | 0 |
| AS395345US | SEOMOZ-DALLAS - SEOmoz, Inc. | — | — | 0 |
| AS395370US | MCKINSEY-US-AMP - McKinsey & Company, Inc. | — | — | 0 |
| AS395407US | CHILDRENS-NATIONAL-HOSPITAL-01 - Children's National Hospital | — | — | 0 |
| AS395418US | ARIN-CHA - ARIN Operations | — | — | 0 |
| AS395443US | GF-FDN - GeoFrenzy, Inc. | — | — | 0 |
| AS395539US | NORWICH-PHARMACEUTICALS-INC - Norwich Pharmaceuticals, Inc. | — | — | 0 |
| AS395590US | NEXTGEAR-CAPITAL-SUPERNAP - NextGear Capital, Inc. | — | — | 0 |
| AS395623US | DOUGH-INC - dough, Inc. | — | — | 0 |
| AS395636US | RUTANHQ - Rutan & Tucker, LLP | — | — | 0 |
| AS395732US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS395811US | UPMC-SOMERSET - UPMC | — | — | 0 |
| AS395815US | SKYMESH-NET - Skymesh, Inc | — | — | 0 |
| AS395864US | AS-WEDBUSH - Wedbush Securities, Inc. | — | — | 0 |
| AS395912US | RTMS-AS - Ruan Transportation | — | — | 0 |
| AS395996US | BJWC-MBO - BJS WHOLESALE CLUB | — | — | 0 |
| AS396008US | KYTCU - Transcend Credit Union | — | — | 0 |
| AS396009US | CITY-OF-BLAKELY - City of Blakely, Georgia | — | — | 0 |
| AS396111US | BOSCH-IOT-CLOUD-US1 - Robert Bosch LLC | — | — | 0 |
| AS396186US | WTA-MULTICAST - Wild Turkey Acres WV LLC | — | — | 0 |
| AS396195US | AMSCOCENTURYLINK - Amsco Windows | — | — | 0 |
| AS396197US | AACS-AUDUBON-AREA - Audubon Area Community Services, Inc. | — | — | 0 |
| AS396227US | CMW-ASN - The Charles Machine Works, Inc. | — | — | 0 |
| AS396379US | BANKOZK - Bank OZK | — | — | 0 |
| AS396390US | INDIANA-UNIVERSITY-NEAAR - Indiana University | — | — | 0 |
| AS396427US | CEOCOMM-AS - Computers, Electronics, Office, Etc, Ltd. | — | — | 0 |
| AS396438US | VATIC - Vatic Investments, LLC | — | — | 0 |
| AS396451US | EMERALD-SHORELINE - Emerald Broadband, LLC | — | — | 0 |
| AS396464US | EA-DEL-REY - Electronic Arts, Inc. | — | — | 0 |
| AS396555US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396596US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396647US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396653US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396674US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396683US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396697US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396711US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396738US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396776US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396798US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396810US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |