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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 2.3K |
| — |
| 3 |
| AS80US | GE-CRD - General Electric Company | 2.3K | — | 8 |
| AS22237US | TSDC-AS - Technology Solutions of SC Inc. | 2.3K | — | 9 |
| AS401350US | CONEXON-CONNECT-2 - Conexon Connect | 2.3K | 65.5K | 5 |
| AS25917US | RA-NA-CNF - ROCKWELL AUTOMATION Inc. | 2.3K | — | 9 |
| AS53591US | YTELL - Ytel, Inc. | 2.3K | 81.9K | 5 |
| AS32619US | SCHNUCKS - Schnuck Markets, Inc. | 2.3K | — | 9 |
| AS10596US | JETNET - Beckman Software Engineering | 2.3K | — | 9 |
| AS393689US | NLM-NCCS - National Library of Medicine | 2.3K | 1 | 5 |
| AS395565US | MIEMX - Mexico Internet Exchange | 2.3K | — | 7 |
| AS10819US | ICC - IFWORLD Inc. | 2.3K | — | 2 |
| AS20260US | SAWTEL-UC - Sawtel, Inc | 2.3K | — | 6 |
| AS21874US | MMC - MMC | 2.3K | — | 2 |
| AS394859US | VBCS - Valparaiso Broadband Communication Systems | 2.3K | 65.5K | 10 |
| AS30076US | TEGRIA-ASN - Tegria Services Group - US, Inc. | 2.3K | — | 5 |
| AS32369US | THEJOCKEYCLUB - The Jockey Club | 2.3K | — | 5 |
| AS400424US | OXIO-1 - OXIO | 2.3K | 34 | 10 |
| AS399584US | LIBERTY-BROADBAND - Liberty Broadband LLC | 2.3K | 4.1K | 6 |
| AS32461US | ARSPL - ARE-East River Science Park, LLC | 2.3K | — | 9 |
| AS394298US | US-SC-DAL-AS - Airlinq Inc | 2.2K | 2 | 13 |
| AS20080US | AMPATH - Florida International University | 2.1K | 98.3K | 9 |
| AS399604US | ES10-08873-01 - EXL SERVICE.COM, LLC | 2.1K | — | 9 |
| AS26632US | CONNETRIX-01 - Connetrix | 2K | — | 1 |
| AS398311US | IT-AUDITORS-PR-CORP - IT Auditors PR, Corp. | 2K | — | 5 |
| AS54407US | ARENT-FOX-LLP - ArentFox Schiff LLP | 2K | — | 8 |
| AS394738US | COLOCROSSING - HostPapa | 2K | — | 4 |
| AS6586US | WEBCENTRIC - WebCentric Communications, Inc. | 2K | — | 1 |
| AS32530US | OPUS-AS1 - Opus Corporation | 2K | — | 5 |
| AS7003US | GNET-ARIN-AS - GNET INC. | 2K | — | 5 |
| AS16432US | DFS-NAO - Discover Financial Services | 2K | — | 8 |
| AS12243US | WADDELL - Waddell Solutions Group LLC | 2K | 65.8K | 10 |
| AS201217US | radishcloud RADISHCLOUD TECHNOLOGY LLC | 2K | 90.2K | 63 |
| AS36797US | RURAL-BROADBAND-NETWORK-SERVICES-LLC - Rural Broadband Network Services LLC | 2K | 65.5K | 3 |
| AS393773US | ROMA-ABILENE - Oracle Corporation | 2K | — | 8 |
| AS27621US | AMERICAN-COMPUTER-ASSOCIATES-SCHUYL-INC - AMERICAN COMPUTER ASSOCIATES | 2K | — | 8 |
| AS402482US | ABTS-INTERNET2 - American | 2K | — | 3 |
| AS40298US | GPDATACENTER - General Pacific, Inc. | 2K | 65.5K | 9 |
| AS18439US | NNVHS - Northern Nevada High Speed LLC | 2K | 131.1K | 9 |
| AS31920US | GEETEL-AS - Geetingsville Telephone Co., Inc. | 2K | — | 1 |
| AS399704US | HALSEY - GigXero Inc | 2K | — | 6 |
| AS13437US | INNOVEX - Innovex Solutions LLC | 2K | 256 | 9 |
| AS5008US | TW-ASN-01 - Boldyn Networks Transit US LLC | 2K | — | 5 |
| AS26876US | CHICOS - chico's fas inc | 2K | — | 6 |
| AS46994US | TELAX09 - Telax Hosted Call Centre | 2K | — | 3 |
| AS32587US | NCH-FTWDC-01 - Frontier Communications of America, Inc. | 2K | — | 4 |
| AS17269US | NCFB-ASN - North Carolina Farm Bureau Mutual Insurance Company Inc | 2K | — | 3 |
| AS21568US | NYTD - The New York Times Company | 2K | — | 1 |