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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS53838US | BEACHBODYUS1 - Beachbody, LLC | 512 | — | 2 |
| AS396083US | ARVUS-160-84 - Framatome Inc. | 512 | — | 2 |
| AS7767US | EB - Encyclopaedia Britannica | 512 | 1 | 3 |
| AS55261US | DMISTL - DISTRIBUTION MANAGEMENT INC | 512 | — | 2 |
| AS36811US | WIZTECH-INTERNET - Wiztech Internet | 512 | 1 | 3 |
| AS400013US | WAUPACA-FOUNDRY-INC - Waupaca Foundry, Inc. | 512 | 5 | 7 |
| AS46362US | CSIU-AS-NUM - Central Susquehanna Intermediate Unit | 512 | — | 2 |
| AS54529US | LCRC-AS - Louisiana Cancer Research Center | 512 | — | 2 |
| AS14279US | HDS-ORL-ASN1 - HD Supply, Inc. | 512 | — | 2 |
| AS13710US | SYSTEMS-METHODS - Systems & Methods, Inc. | 512 | — | 1 |
| AS397932US | NYSA-ASN - New York State Assembly | 512 | — | 2 |
| AS3727US | SHRUBB - Shrubbery Networks | 512 | — | 1 |
| AS396205US | ALTRUISTA - Altruista Health, Inc | 512 | — | 2 |
| AS398125US | EXODUSPOINT-CAPITAL-MANAGEMENT-US - ExodusPoint Capital Management, L.P. | 512 | — | 2 |
| AS395842US | GLACIER-BROADBAND-MT - Glacier Broadband | 512 | — | 2 |
| AS4361US | VERSATURE-NET2PHONE - IDT Corporation | 512 | — | 2 |
| AS398780US | BEC - Bluebonnet Electric Cooperative, Inc. | 512 | — | 2 |
| AS20388US | ETI-FLL1 - Ewart Technologies, Inc. | 512 | — | 2 |
| AS398480US | RBH - Robinson Bradshaw | 512 | — | 2 |
| AS14353US | WIX-IT - Wix.Com, Inc. | 512 | — | 2 |
| AS397259US | PIRATEL-LA1 - Piratel LLC | 512 | — | 2 |
| AS35855US | UCCU - UTAH COMMUNITY FEDERAL CREDIT UNION | 512 | — | 2 |
| AS399221US | CONFIE - CONFIE ADMINISTRATIVE SERVICES, INC. | 512 | — | 2 |
| AS16896US | NCN - NCN | 512 | — | 2 |
| AS36760US | KHOG-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS53323US | ION-CLEARWATER-TOC - The E.W. Scripps Company | 512 | — | 2 |
| AS16854US | HCCU-2 - Hapo Community Credit Union | 512 | — | 2 |
| AS401338US | NYCRE-ALB - NY CREATES | 512 | — | 1 |
| AS397509US | FLOOR-AND-DECOR - Floor and Decor Outlets of America, Inc. | 512 | — | 2 |
| AS1438US | PIONEER-STATE-MUTUAL-INSURANCE - PIONEER STATE MUTUAL INSURANCE CO. | 512 | — | 2 |
| AS15115US | PREMIERE-NETWORKS-15115 - Premiere Networks | 512 | — | 1 |
| AS15202US | GELLER - Geller & Company LLC | 512 | — | 2 |
| AS398441US | CTON-CITY-SCHOOLS - Carrollton City Schools District | 512 | — | 2 |
| AS53320US | INTERACTIVE-INTELLIGENCE-INC - Genesys Telecommunications Laboratories,Inc. | 512 | — | 2 |
| AS393567US | AS-EQX-ATLC-01 - Atlanticus Holdings Corporation | 512 | — | 2 |
| AS396369US | CITYOFLUBBOCKTX - City of Lubbock | 512 | — | 2 |
| AS15276US | ZENDA-ASN - Zenda Telephone | 512 | — | 1 |
| AS7124US | DACSCX-US - DACS-IX | 512 | 264 | 11 |
| AS46207US | STATE-OF-LOUISIANA-JUDICIAL-BRANCH - State of Louisiana Supreme Court - JA/CMIS | 512 | — | 1 |
| AS399346US | STMU-SATX-01 - St Mary's University | 512 | — | 2 |
| AS401847US | 321-WLCS-ASN - 321 Communications, Inc. | 512 | 2 | 4 |
| AS27203US | TRIHEALTH-1 - Trihealth | 512 | — | 2 |
| AS33461US | COMMUNITY-FOUNDATION-OF-NORTHWEST-INDIANA - COMMUNITY FOUNDATION OF NW INDIANA | 512 | — | 2 |
| AS29868US | DRW-HOLDINGS - DRW Holdings, LLC | 512 | — | 2 |
| AS62722US | CSF-ASN-01 - Central States Southeast and Southwest Areas Health and Welfare and Pension Funds | 512 | — | 2 |
| AS215406US | paymentpass PaymentPass Inc. | 512 | — | 2 |