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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 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 | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 4 |
| AS13836US | ASN-13836 - Nasdaq, Inc. | 1K | — | 3 |
| AS21842US | PJM - PJM Interconnection LLC. | 1K | — | 3 |
| AS201667US | BreadCloud ASMBP LLC | 1K | 2 | 6 |
| AS399853US | GREENSTATE-CU - GreenState Credit Union | 1K | — | 3 |
| AS13958US | PZG-FL - THE RIDGEROCK GROUP, LLC | 1K | — | 1 |
| AS53675US | HWB-ASN-53675 - Hancock Whitney Bank | 1K | — | 4 |
| AS54282US | JJINTEROP - Johnson & Johnson | 1K | — | 3 |
| AS53627US | TELECOM1-01 - Telecom 1 LLC | 1K | 4.1K | 2 |
| AS40036US | WAL-91-40036 - Wisk Aero LLC | 1K | — | 3 |
| AS395688US | BMWL-ESP-VLY-0 - Black Mesa Wireless, LLC. | 1K | — | 2 |
| AS5026US | LVVWD - Las Vegas Valley Water District | 1K | — | 4 |
| AS20061US | LIMITLESS1-ASN - Limitless Mobile, LLC | 1K | 2 | 6 |
| AS1790US | COGENT-1790 - Cogent Communications, LLC | 1K | — | 4 |
| AS26260US | TMTAS01 - The Media Trust | 1K | — | 3 |
| AS18546US | ACN-NADC - Accenture LLP | 1K | — | 4 |
| AS46488US | BLS-BROADBAND-ASN1 - BLS Broadband | 1K | 256 | 5 |
| AS16545US | OSSDS - OSSDS, LLC | 1K | — | 1 |
| AS394741US | ICCU - Idaho Central Credit Union | 1K | — | 3 |
| AS54491US | BP-47-54491 - Bright Packet, Inc. | 1K | — | 1 |
| AS399308US | UFP-GR - UFP Industries, Inc. | 1K | — | 3 |
| AS54092US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS22821US | AIPSO-COM - AIPSO | 1K | — | 1 |
| AS400338US | GIGABEAM-INTERNET - Gigabeam Internet | 1K | 65.5K | 3 |
| AS394899US | HCDL-MINNEAPOLIS-DATA-CENTER - H5 Data Centers | 1K | 256 | 5 |
| AS46357US | CALPOLY-NETLAB - California Polytechnic State University | 1K | 1 | 2 |
| AS10936US | MARNELL-CORRAO-ASSOC-MCC1 - Marnell Corrao Assoc. | 1K | — | 1 |
| AS23083US | IRONCORE-LAX - Ironcore, Inc. | 1K | — | 3 |
| AS401026US | IMDC-EMEA - Iron Mountain Data Center | 1K | 257 | 6 |
| AS398647US | TRITECH-FIBER - Tritech Fiber | 1K | 4.1K | 5 |
| AS6652US | PIMA-COLLEGE - Pima Community College | 1K | — | 1 |
| AS397596US | ADP-USDC01-01 - Assured DP | 1K | — | 4 |
| AS15342US | DDPMI-1 - DELTA DENTAL PLAN OF MICHIGAN | 1K | — | 4 |
| AS992US | MODEST-LABS - Modest Labs LLC | 1K | 10 | 6 |
| AS46973US | REALOGY-WEBSERVICES - Realogy Group LLC | 1K | — | 4 |
| AS22169US | OMNIS-ANYCAST-1 - Omnis Network, LLC | 1K | 4 | 8 |
| AS30428US | NET2PHONE-GLOBAL-SERVICES - IDT Corporation | 1K | — | 1 |
| AS19284US | AGSTAR-AS - Compeer Financial, ACA | 1K | — | 4 |
| AS26820US | HERFF-JONES - Herff Jones | 1K | — | 4 |
| AS15238US | GF-AS15238 - Gates Foundation | 1K | — | 4 |
| AS394342US | AMR-NET - Applied Medical Resources Corporation | 1K | — | 4 |
| AS393321US | AMERIGAS-PROPANE - AmeriGas Propane | 1K | — | 3 |
| AS53276US | TUDOR - Tudor Investment Corporation | 1K | — | 4 |
| AS53249US | LAWA-AS - Los Angeles World Airport | 1K | — | 3 |
| AS394759US | TWIN-EAGLE-RESOURCE-MANAGEMENT-LLC - TWIN EAGLE RESOURCE MANAGEMENT, LLC | 1K | — | 3 |
| AS62553US | ELCRO-DIGITAL-SERVICES-LLC - Elcro Digital Services, LLC | 1K | 257 | 6 |
| AS33120US | VIRGINIA-BEACH-CITY-PUBLIC-SCHOOLS - Virginia Beach City Public Schools | 1K | — | 3 |