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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS62051US | A42NET 42NET LLC | 256 | — | 1 |
| AS64239US | KYANAIND-COM - Kyana Packaging & Industrial Supply, Inc | 256 | — | 1 |
| AS62896US | MIDCO-NET-INV-MR - Midcontinent Communications | 256 | 48 | 4 |
| AS19827US | CCC-AS - City of Carson City | 256 | — | 1 |
| AS397597US | RHF-ASN - RHF Investments | 256 | — | 1 |
| AS29792US | NETAPP-AS-2 - NetApp, Inc. | 256 | 1 | 2 |
| AS46771US | AVI-HQ - AVI FOODSYSTEMS, INC. | 256 | 256 | 2 |
| AS213124US | zylinktech-net zylinktech LLC | 256 | 73.7K | 6 |
| AS402399US | IRON - IRONHOSTING | 256 | — | 1 |
| AS63030US | MY-SIMPLE-ISP - My Simple ISP LLC | 256 | — | 1 |
| AS20247US | IC531954 - Mercy College | 256 | — | 1 |
| AS394798US | CPD-AS - Chicago Park District | 256 | — | 1 |
| AS53327US | CO-OPERATIVE-INSURANCE-COMPANIES - Co-operative Insurance Companies, inc. | 256 | — | 1 |
| AS29875US | CPLSW-AS - Clinical Pathology Laboratories | 256 | — | 1 |
| AS36288US | ASN-IARC - NNSA Information Assurance Response Center (IARC) | 256 | 1 | 2 |
| AS55167US | NADA - NADA | 256 | — | 1 |
| AS54545US | WINCO-FOODS - Winco Foods LLC | 256 | — | 1 |
| AS394286US | CITY-OF-JOHNSON-CITY - City of Johnson City | 256 | — | 1 |
| AS14128US | NU-EDU - National University | 256 | — | 1 |
| AS395185US | ESCAMBIA-COUNTY-FL-BCC - Escambia County FL Board of County Commissioners | 256 | — | 1 |
| AS39950US | STARC-15-39950 - STARCREST PRODUCTS OF CALIFORNIA, INC. | 256 | — | 1 |
| AS394602US | ILLINOISCOLLEGE - Illinois College | 256 | — | 1 |
| AS30331US | ST-VINCENT - St. Vincent Hospital | 256 | — | 1 |
| AS33394US | JABIL-AS-FRAU-PH - Jabil | 256 | — | 1 |
| AS397460US | BEAUFORT-COUNTY-SC-01 - Beaufort County Government | 256 | — | 1 |
| AS10419US | GBUS-ASN - Globius Systems, LLC | 256 | 16 | 2 |
| AS36613US | TRADER1-CHICAGO - York Business Associates, LLC | 256 | — | 1 |
| AS13697US | SHG-AS - Saber Healthcare Group LLC | 256 | — | 1 |
| AS18984US | MOBOWARE - Moboware Inc. | 256 | — | 1 |
| AS26142US | MANNINGTON-SALEM - MANNINGTON MILLS | 256 | — | 1 |
| AS61402US | BIO-RAD-ASN Bio-Rad Laboratories, Inc. | 256 | — | 1 |
| AS395638US | OTTAWACO-ASN1 - County of Ottawa | 256 | — | 1 |
| AS8132US | ENTEX - ENTEX Information Services | 256 | — | 1 |
| AS40823US | SPORTS-ENDEAVORS - Sports Endeavors Inc. | 256 | — | 1 |
| AS63465US | SW24-MOON - Securewatch24, LLC | 256 | — | 1 |
| AS40433US | AEBS-ASN - AE Business Solutions | 256 | — | 1 |
| AS18993US | AFS147 - Area Financial Services Inc. | 256 | — | 1 |
| AS53476US | NDBH - New Directions Behavioral Health, LLC | 256 | — | 1 |
| AS47075US | TCNINC - TCN, Inc. | 256 | — | 1 |
| AS395507US | RCH350 - Redlands Community Hospital | 256 | — | 1 |
| AS395858US | RAVINIA-BGP - RAVINIA FESTIVAL ASSOCIATION | 256 | — | 1 |
| AS397287US | AUTOCRIB-53 - AutoCrib, Inc. | 256 | — | 1 |
| AS400473US | AS-JENCO - Jenco Wireless, LLC | 256 | — | 1 |
| AS401381US | APTCORP - Alaska Power & Telephone Company | 256 | — | 1 |
| AS32492US | DANA - DANA INNOVATION | 256 | — | 1 |
| AS7406US | PDX-DC - B&R Auto | 256 | — | 1 |