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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS17236US | TULSAL-74103 - Tulsa City-County Library | 256 | — | 1 |
| AS54684US | PPD-WILMINGTON - PPDI | 256 | — | 1 |
| AS400904US | KEY-MANAGEMENT - Key Investment | 256 | — | 1 |
| AS22643US | WESTEDORG - WestEd | 256 | — | 1 |
| AS198005US | Andrzejewski-David Andrzejewski David | 256 | 2 | 3 |
| AS35841US | CHATS-ASN - CHATSWORTH PRODUCTS, INC. | 256 | — | 1 |
| AS54925US | FNSBSD - Fairbanks North Star Borough School District | 256 | — | 1 |
| AS393407US | FLORESVILLE-ISD - Floresville ISD | 256 | — | 1 |
| AS402428US | ITSUMIKU-AS-INTL1 - Itsumiku | 256 | 16 | 2 |
| AS36189US | NEILMEDAS - Neil Medical Group | 256 | — | 1 |
| AS1075US | AS-WITC-01 - Wiseinfotec.net LLC | 256 | — | 1 |
| AS36055US | MARKET-STRATEGIES-INTERNATIONAL - MARKET STRATEGIES | 256 | — | 1 |
| AS55086US | PINNACLE-DATA-SYSTEMS - Pinnacle Data Systems, L.L.C. | 256 | — | 1 |
| AS23104US | AMERICAN-TIRE-DISTRIBUTORS-INC - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS46232US | AURORATRADE-01 - AURORA TELECOMMUNICATIONS | 256 | — | 1 |
| AS33599US | RELIABLE-REPORTS-OF-TEXAS-INC - Reliable Reports of Texas, Inc. | 256 | — | 1 |
| AS11945US | ASN-DEYOUNG - Corporation of the Fine Arts Museums | 256 | — | 1 |
| AS32998US | MIMCOM - Mimbres Communications, LLC | 256 | — | 1 |
| AS15012US | TRIOLAB - NextStage Innovations LLC | 256 | — | 1 |
| AS46363US | HOLYFAMILY - Holy Family University | 256 | — | 1 |
| AS54943US | FNIS-INSURANCE-JACKSONVILLE - Stillwater Insurance Services, Inc | 256 | — | 1 |
| AS27412US | NCHE - American Council on Education | 256 | — | 1 |
| AS31887US | TRINITYHEALTH-MIDATLANTIC - Trinity Health Corporation | 256 | — | 1 |
| AS399540US | ABSCI-US-001 - AbSci Corporation | 256 | — | 1 |
| AS19150US | ABCWUA-ASN - Albuquerque Bernalillo County Water Utility Authority | 256 | — | 1 |
| AS36835US | NMF4L-1500 - Nugget Market | 256 | — | 1 |
| AS399043US | PTOI - Puyallup Tribe of Indians | 256 | — | 1 |
| AS32602US | CORP-HDQTRS - ROI Solutions, LLC | 256 | — | 1 |
| AS397045US | DBMGMT-AS1 - D. Brown Management | 256 | 16 | 2 |
| AS394318US | TELECOMMUNICATION-SYSTEMS-INC - Telecommunication Systems Inc. | 256 | — | 1 |
| AS393425US | CALACADEMY-NET - California Academy of Sciences | 256 | — | 1 |
| AS396295US | CALIBER-SOUTH - Caliber South, LLC | 256 | 65.5K | 2 |
| AS29803US | FANATIC NODE LLC - FanaticNode LLC | 256 | — | 1 |
| AS401511US | MULLINAX-AUTOMOTIVE - Mullinax Ford | 256 | 2 | 3 |
| AS14479US | OG-ASN-01 - The Oneida Group Inc. | 256 | — | 1 |
| AS6500US | NEXUS-22-6500 - Nexusguard, Inc | 256 | — | 1 |
| AS26573US | NY-DC - Luxoft USA Inc | 256 | — | 1 |
| AS397522US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | 1 | 2 |
| AS395384US | MUFSD-1 - Massapequa Union Free School District | 256 | — | 1 |
| AS63244US | ASG - American Seafoods Company LLC | 256 | — | 1 |
| AS399799US | BOLD-FURMAN - Apogee Telecom Inc. | 256 | — | 1 |
| AS19439US | REACH-MEDIA-LLC - Reach Media LLC | 256 | — | 1 |
| AS400621US | YUHSD-ISP - Yuma Union High School District #70 | 256 | — | 1 |
| AS30098US | INFB-ASN - Farm Bureau Insurance | 256 | — | 1 |
| AS398117US | WILSON-COLLEGE - Wilson College | 256 | — | 1 |
| AS26823US | INTERCEPT1 - First International Bank & Trust | 256 | — | 1 |