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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| 256 |
| — |
| 1 |
| AS398953US | ABC-WAREHOUSE - ABC Warehouse | 256 | — | 1 |
| AS17357US | AS-DCI-31 - Development Corporation for Israel | 256 | — | 1 |
| AS400352US | AFS-TX-01 - AFS Logistics, LLC | 256 | — | 1 |
| AS54567US | CORPORATE-ROLANDDGA - Roland DGA Corporation | 256 | — | 1 |
| AS836US | WHITE-PLAINS-HOSPITAL - White Plains Hospital | 256 | — | 1 |
| AS63029US | PAYSCALE-WEB - Payscale, Inc. | 256 | — | 1 |
| AS396214US | HOSPITALFORSPECIALCARE - Hospital for Special Care | 256 | — | 1 |
| AS33390US | READYTECH - READYTECH CORPORATION | 256 | — | 1 |
| AS401201US | RENO-TAHOE-AIRPORT-AUTHORITY - Reno-Tahoe Airport Authority | 256 | — | 1 |
| AS398426US | APOG-RIPON - Apogee Telecom Inc. | 256 | — | 1 |
| AS395112US | BEAUMONT-ISD-01 - Beaumont ISD | 256 | — | 1 |
| AS53463US | AGC-01 - American Greetings | 256 | — | 1 |
| AS12278US | AHMC-DC-01 - AHMC HEALTHCARE INC | 256 | — | 1 |
| AS396193US | ULTRATEC - Ultratec, Inc. | 256 | — | 1 |
| AS396381US | GENESISHCS - Genesis Healthcare System | 256 | — | 1 |
| AS402067US | NACC-46-AS - NorthWest Arkansas Community College | 256 | — | 1 |
| AS39946US | CHICKFILA - Chick-Fil-A, Inc | 256 | — | 1 |
| AS53701US | TRINITY-WASHINGTON-UNIVERSITY - Trinity Washington University | 256 | — | 1 |
| AS25744US | LOGIC-SPRINGS-TECHNOLOGIES - Logic Springs Technologies | 256 | — | 1 |
| AS7136US | LATINO - Latino Communications Corporation | 256 | — | 1 |
| AS399513US | MODA-PARTNERS-INC-01 - Moda Health | 256 | — | 1 |
| AS33393US | MMMI - Michigan Millers Mutual Insurance Company | 256 | — | 1 |
| AS397777US | TORANI-AS - Torani | 256 | — | 1 |
| AS19745US | OKTA - Okta, Inc. | 256 | 3 | 4 |
| AS395056US | AS395056 - PLS Financial Services, Inc. | 256 | — | 1 |
| AS11218US | TED-MOUDIS-ASSOCIATES-INC - Ted Moudis Associates, Inc. | 256 | — | 1 |
| AS46654US | OC-INTERNET - O'Charleys Inc. | 256 | — | 1 |
| AS46922US | GCM-ASN - Gladius Capital Management, LP | 256 | — | 1 |
| AS400489US | DOMICILIUM - DOMICILIUM HOLDINGS INCORPORATED | 256 | — | 1 |
| AS10730US | SN-DFO - Syndeo Networks, Inc | 256 | — | 1 |
| AS395595US | NSG-LR - Network Services Group, Inc. | 256 | — | 1 |
| AS17125US | LOGIS-ASN-01 - Logistics Plus, Inc. | 256 | — | 1 |
| AS395854US | SIMNA-64643 - Schroder Investment Management North America Inc. | 256 | — | 1 |
| AS401963US | VVHOSP - VALLEY VIEW HOSPITAL ASSOCIATION | 256 | — | 1 |
| AS53305US | TNA-124-53305 - Transdev North America, Inc. | 256 | — | 1 |
| AS18962US | MEDITECH-1 - Medical Information Technology, Inc. | 256 | — | 1 |
| AS397393US | REHNAS01 - A W Rehn & Associates Inc. | 256 | — | 1 |
| AS402410US | COMPATIBLE-NETWORK - Compatible | 256 | 48 | 4 |
| AS1217US | ORACLE-PACRIM-AS - Oracle Corporation | 256 | — | 1 |
| AS47097US | AMERIPHARM-INC-DBA-MEDVANTX-PHARMACY-SERVICES - AmeriPharm Inc. | 256 | — | 1 |
| AS14636US | INTERNAP-BLK4 - Internap Holding LLC | 256 | 65.5K | 4 |
| AS26289US | SOUTHSIDE-BANCSHARES-INC - Southside Bancshares, Inc. | 256 | — | 1 |
| AS6651US | GEMINI-EXCHANGE - Gemini | 256 | — | 1 |
| AS400153US | ASL-691 - Absolute Technologies LLC | 256 | — | 1 |
| AS398319US | ANMISA-LLC - Aaron N Martin ISA LLC | 256 | 256 | 2 |
| AS393353US | ACUFCU - America's Credit Union | 256 | — | 1 |