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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 |
| MICHIGAN-CENTRAL - Michigan Central Innovation District, LLC |
| 512 |
| — |
| 2 |
| AS33498US | TALCOTT-RESOLUTION-INSURANCE - Talcott Resolution Life Insurance Company | 512 | — | 2 |
| AS395420US | JAS - JAS Worldwide Management, Inc. | 512 | — | 2 |
| AS394851US | NUSOCLOUD-CO - NUSO | 512 | 16.4K | 4 |
| AS394610US | INCOMM-NET2 - InComm | 512 | — | 2 |
| AS29708US | FINANCIAL-SECURITY-ASSURANCE - Assured Guaranty Corp | 512 | — | 2 |
| AS401294US | ROOFSOFT - RoofSoft LLC | 512 | — | 2 |
| AS283US | MPOWERLABS - MPower Labs, Inc. | 512 | — | 2 |
| AS3630US | NYSERNET-BLK - NYSERNet | 512 | 1 | 3 |
| AS27180US | ACETOMATO - Ace Tomato Company | 512 | 512 | 4 |
| AS16783US | INVITE-US - INVITE Networks Incorporated | 512 | — | 1 |
| AS393401US | HAYSMED - Hays Medical Center | 512 | — | 2 |
| AS396310US | SDSU-SCIENCE-NETWORK - San Diego State University | 512 | — | 2 |
| AS8012US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS8012 - The Bank of New York Mellon Corporation | 512 | — | 2 |
| AS36779US | LEARFIELD - Learfield Communications, LLC | 512 | — | 2 |
| AS401648US | EVERI GAMES - Everi Games Inc. | 512 | — | 2 |
| AS19838US | BLUE-WATER-NETWORKS - Blue Water Networks | 512 | — | 1 |
| AS1974US | MEHEALTH-SOUTH - Southern Maine Medical Center | 512 | — | 2 |
| AS401306US | IR - Ingersoll Rand Inc. | 512 | — | 2 |
| AS400493US | APEXA-AS - APEX Analytix, LLC | 512 | — | 2 |
| AS398010US | MFCU - MFCU | 512 | — | 2 |
| AS399094US | MTE - MIDDLE TENNESSEE ELECTRIC MEMBERSHIP CORPORATION (THE) | 512 | — | 2 |
| AS5666US | NET-CPRK - Speedcast Communications, Inc | 512 | — | 2 |
| AS36079US | RESULTS - Results | 512 | — | 2 |
| AS62559US | CITYOFPEORIAAZ - CITY OF PEORIA | 512 | — | 2 |
| AS30613US | CME-TESTLAB - Chicago Mercantile Exchange | 512 | — | 1 |
| AS63214US | MUSL-RANGE1 - Multi-State Lottery Association | 512 | — | 2 |
| AS397900US | FIRSTDAY - FirstDay Foundation | 512 | — | 2 |
| AS394997US | NEXUM-ABQ-ASN - Nexum, Inc. | 512 | — | 1 |
| AS399987US | TACOMA-PIERCE-COUNTY-HEALTH-DEPARTMENT - Tacoma-Pierce County Health Department | 512 | — | 2 |
| AS55098US | LOB-AS - Live Oak Bank | 512 | — | 2 |
| AS40852US | SSFCU-AS-4 - Security Service Federal Credit Union | 512 | — | 2 |
| AS401246US | SPPX - Silicon Prairie Portal & Exchange LLC | 512 | — | 2 |
| AS32280US | THE-EWSCRIPPS - The E.W. Scripps Company | 512 | — | 2 |
| AS33629US | NKU-AS1 - Northern Kentucky University | 512 | — | 2 |
| AS394479US | EMA-RAD - eMoney Advisor | 512 | — | 2 |
| AS395238US | BRAZOSPORTISD-01 - Brazosport Independent School District | 512 | — | 2 |
| AS396027US | PORTAGEPUBLICSCHOOLS - Portage Public Schools | 512 | 1 | 3 |
| AS33316US | AV-INC - AeroVironment, Inc. | 512 | — | 2 |
| AS29764US | AMETEK-CTC - AMETEK Inc. | 512 | — | 2 |
| AS13705US | COLQUITT-CONNECT-01 - City of Colquitt | 512 | — | 2 |
| AS40813US | INDIANA-MEMBERS-CU - Indiana Members Credit Union | 512 | — | 2 |
| AS402416US | RCS-DR-CO-LO-BGP - Resurgent | 512 | — | 2 |
| AS268US | USUHSNET-AS - Uniformed Services University of the Health Sciences | 512 | — | 1 |
| AS36710US | NAKAYAMA - Nakayama Systems LLC | 512 | 5 | 7 |
| AS19195US | ASN-MEGLOBAL-OC-01 - MEGLOBAL AMERICAS INC. | 512 | — | 2 |
| AS394777US | SMBMI - San Manuel Band of Mission Indians | 512 | — | 2 |