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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 |
| CFN - Fleetcor Technologies Operating Company, LLC |
| 256 |
| — |
| 1 |
| AS14766US | UKMAGDIA-BT-LUM - Magnetar Capital LLC | 256 | 1 | 2 |
| AS27515US | WORKD-LAB - Workday, Inc. | 256 | — | 1 |
| AS10851US | SJCB - St Johns County BOCC | 256 | 48 | 4 |
| AS397919US | NETSPI-CORPORATE - NetSPI | 256 | 16 | 2 |
| AS393748US | LBMCAS01 - LBMC | 256 | — | 1 |
| AS393501US | JCC-13-AS - JCC | 256 | 16 | 2 |
| AS23540US | CMH-IX - CMH-IX | 256 | — | 1 |
| AS46665US | ASM - Applied Statistics & Management, Inc. | 256 | — | 1 |
| AS27622US | RSA-AL - Retirement Systems of Alabama | 256 | — | 1 |
| AS36652US | KOCHTRUCKING - KOCH TRUCKING | 256 | — | 1 |
| AS39981US | STONE-POINT-CAPITAL-PUBLIC - Stone Point Capital LLC | 256 | — | 1 |
| AS396383US | SEC-98-100-228-0 - SECURA INSURANCE HOLDINGS, INC. | 256 | — | 1 |
| AS18461US | BELL-ATL - Verizon Business | 256 | — | 1 |
| AS62939US | PINKBIKE-US-DC1 - Outside Interactive Canada Inc. | 256 | — | 1 |
| AS21566US | HOTAISLE - Hot Aisle Inc. | 256 | — | 1 |
| AS397425US | MASON-1 - Masonicare Corporation | 256 | — | 1 |
| AS33577US | RFA-AS - Radio Free Asia | 256 | — | 1 |
| AS16541US | ERICKSON-AS - Erickson Living Management, LLC | 256 | — | 1 |
| AS13465US | SAMHOUSTONEC - Sam Houston Electric Cooperative, Inc. | 256 | — | 1 |
| AS20122US | NOS-NOG2 - NOS Network Operations Group | 256 | — | 1 |
| AS394891US | SEAPORT-GLAN - Commonwealth Flats Development Hotel Corp. | 256 | — | 1 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |
| AS400298US | MADCITYSERVERS-LLC - Madcityservers LLC | 256 | 1 | 2 |
| AS18684US | WCM-ASN - Westfield Capital Management Company, LLC | 256 | — | 1 |
| AS18437US | PITT-OHIO-EXPRESS-AS - Pitt-Ohio Express, LLC. | 256 | 3 | 4 |
| AS62495US | IDISCOVER-LLC - I Discover, LLC | 256 | — | 1 |
| AS36036US | M-FINANCIAL - M Financial Group | 256 | — | 1 |
| AS19408US | WDS-DENTAL - Western Dental | 256 | — | 1 |
| AS401995US | ACH-ASN-01 - Arkansas Children's Hospital | 256 | — | 1 |
| AS63198US | JCSO-ASN - Jefferson County Sheriff's Office | 256 | — | 1 |
| AS398458US | LINCOLN-COMPUTERS-SERVICES - Lincoln IT LLC | 256 | — | 1 |
| AS10988US | COLLEGE-OF-WESTERN-IDAHO - College of Western Idaho | 256 | — | 1 |
| AS395933US | YRMC-AS - Dignity Health, Yavapai Regional Medical Center | 256 | — | 1 |
| AS394004US | HURLEY-MEDICAL-ASN - Hurley Medical Center | 256 | — | 1 |
| AS22614US | IGA-ASN-01 - Legislative Services Agency | 256 | — | 1 |
| AS397910US | TSC - AEG | 256 | — | 1 |
| AS62855US | CMA-MISCNY - Currier, McCabe and Associates, Inc. | 256 | — | 1 |
| AS33693US | AS-TIERP-33693 - TierPoint, LLC | 256 | — | 1 |
| AS40704US | DLFI - Delphi Capital Management, Inc. | 256 | — | 1 |
| AS395978US | VALLEYWATER - SANTA CLARA VALLEY WATER DISTRICT PUBLIC FACILITIES FINANCING CORPORATION | 256 | — | 1 |
| AS396127US | SUCCESS-ACADEMIES - Success Academy Charter Schools Inc. | 256 | — | 1 |
| AS394969US | LOLAWIRELESS - Lola Wireless | 256 | 65.5K | 2 |
| AS7850US | TN-ASN-CL - Tarakona Networks, LLC | 256 | — | 1 |
| AS26839US | CBS-FULTON - CREDIT BUREAU SYSTEMS | 256 | — | 1 |
| AS32389US | BERKLEE-AS - Berklee College of Music | 256 | — | 1 |
| AS33103US | OPENMARKET-INC-2 - Infobip | 256 | — | 1 |