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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. | 211.1M | 21,109 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,430 |
| 256 |
| — |
| 1 |
| AS19015US | GREENPATH - GreenPath Inc | 256 | — | 1 |
| AS401310US | PMTC-ASN - Palmer Mutual Telephone Company | 256 | 4.1K | 2 |
| AS22704US | CEI-COLLEGE-OF-EASTERN-IDAHO - College of Eastern Idaho | 256 | — | 1 |
| AS27217US | ACN-2 - Jewelry Television | 256 | 3 | 3 |
| AS40425US | GLDS-CA - GREAT LAKES DATA SYSTEMS, INC. | 256 | — | 1 |
| AS40547US | AERAENERGYLLC - Aera Energy LLC | 256 | — | 1 |
| AS19697US | DUPRE - Dupre Energy Services LLC | 256 | — | 1 |
| AS397149US | SDSU-SNAPDRAGON - San Diego State University | 256 | — | 1 |
| AS396506US | BEVAIR-27105 - BEVERAGE AIR CORPORATION | 256 | — | 1 |
| AS395568US | COMFEDCU - Communication Federal Credit Union | 256 | 257 | 3 |
| AS401219US | COCHISE-CONNECT - Cochise Connect LLC | 256 | 4.1K | 2 |
| AS399593US | DWIHN-ASN-01 - DWIHN | 256 | — | 1 |
| AS395392US | FASCETDR - Fascet LLC | 256 | — | 1 |
| AS396074US | ONEIDACOUNTY-NY - Oneida County | 256 | — | 1 |
| AS22743US | AS22743 - Corelogic Solutions, LLC | 256 | — | 1 |
| AS54642US | LC-CHI-BGP - Litchfield Cavo, LLP | 256 | — | 1 |
| AS397426US | WILSON-HEALTH - Wilson Health | 256 | — | 1 |
| AS39940US | POLICE-AND-FIRE - Police and Fire Federal Credit Union | 256 | — | 1 |
| AS63038US | DELIBRARY - Delaware Division of Libraries, State of Delaware | 256 | — | 1 |
| AS401716US | CAL-STO - State Treasurer's Office | 256 | — | 1 |
| AS54255US | BS - Bitstine LLC | 256 | — | 1 |
| AS400957US | ONERINGNETWORKS - Melissa's Produce | 256 | — | 1 |
| AS393409US | HELLOSPOKE - Voitress | 256 | — | 1 |
| AS401186US | OPTYXBROADBAND-FL - Optyx Broadband Inc. | 256 | — | 1 |
| AS400278US | TFC-ASN-01 - TITLE FINANCIAL CORPORATION | 256 | — | 1 |
| AS25750US | AS25750 - Southwestern Vermont Health Care Corporation | 256 | — | 1 |
| AS22124US | FINNEGANBGP - Finnegan, Henderson, Farabow, Garrett &Dunner, LLP | 256 | — | 1 |
| AS19593US | SMITHDRUGCOMPANY - Smith Drug Company | 256 | — | 1 |
| AS401314US | GOLDENVM-LLC - GoldenVM LLC | 256 | — | 1 |
| AS398289US | JKNIPPER-ASN-01 - J. KNIPPER AND COMPANY, INC. | 256 | — | 1 |
| AS22776US | CONRES01730 - Continental Resources | 256 | — | 1 |
| AS26319US | CHFCU - CoastHills Federal Credit Union | 256 | — | 1 |
| AS36537US | BRMIC-MURRAY-01 - Bear River Mutual Insurance Company | 256 | — | 1 |
| AS54073US | DN-OH2 - Diebold Nixdorf, Incorporated | 256 | — | 1 |
| AS396119US | AVERA-ECARE - AVERA MCKENNAN | 256 | — | 1 |
| AS26977US | BRG-SPORTS-AS26977 - BRG Sports, Inc. | 256 | — | 1 |
| AS46591US | DPAM-AS1 - DENSO Products and Services Americas, INC. | 256 | — | 1 |
| AS400352US | AFS-TX-01 - AFS Logistics, LLC | 256 | — | 1 |
| AS40303US | AKSIA - AKSIA LLC | 256 | — | 1 |
| AS54317US | WOODSROGERSPLC-USA - Woods Rogers PLC | 256 | — | 1 |
| AS401802US | KANTIME-01 - KanTime | 256 | — | 1 |
| AS32193US | AMMON - City of Ammon, Idaho | 256 | — | 1 |
| AS397527US | PHC-P1 - Plimpton & Hills Corporation | 256 | — | 1 |
| AS53341US | PBA4103-AS - Peoples Bank of Alabama | 256 | — | 1 |
| AS36028US | TYSON-ENT-DC-VA1 - NEW CCH, LLC | 256 | 256 | 2 |
| AS1098US | SNAPONE-LEHI-01 - Snap One, LLC. | 256 | — | 1 |