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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 |
| — |
| 4 |
| AS397641US | ARAMARK-NS2-SCO - ARAMARK | 2.3K | — | 9 |
| AS7253US | MAINSTAY-COMMUNICATIONS - Mainstay Communications | 2.3K | — | 2 |
| AS53568US | FRANKLIN-UNIVERSITY - Franklin University | 2.3K | — | 4 |
| AS54294US | ECC-LINK-001 - ERIE COMMUNITY COLLEGE | 2.3K | — | 9 |
| AS395810US | HCAS-2 - Hanson Communications, Inc. | 2.3K | — | 2 |
| AS34939US | nextdns NextDNS, Inc. | 2.3K | 65.5K | 11 |
| AS29955US | WASHBURN-UNIVERSITY - Washburn University | 2.3K | — | 2 |
| AS32840US | 32840 - Cherokee Cablevision | 2.3K | — | 6 |
| AS17176US | BCG-NETWORKS - BCG Networks LLC | 2.3K | 256 | 10 |
| AS62672US | STREAMWIDE-INC - Streamwide Inc. | 2.3K | 7 | 16 |
| AS63452US | VELOCIHOST - Velocihost Inc. | 2.3K | 769 | 10 |
| AS399347US | SIMPLE-FIBER-OPE - Simple Fiber, LLC | 2.3K | 4.1K | 9 |
| AS10489US | ARMOUR-AS - Armour Cloud, LLC | 2.3K | — | 9 |
| AS22607US | DES-MOINES-EDU - Des Moines University | 2.3K | — | 3 |
| AS401008US | IONLINE-ISP-US - iONLINE | 2.3K | 65.5K | 6 |
| AS46976US | LCPRODASN - Liquidity Connect LLC | 2.3K | — | 8 |
| AS7280US | YAHOO-FC - Yahoo Holdings Inc. | 2.3K | 9 | 18 |
| AS6077US | BCBSNE - Blue Cross Blue Shield of Nebraska | 2.3K | — | 3 |
| AS22056US | SITEL-OMA - Sitel | 2.3K | 2 | 11 |
| AS11621US | REYESHOLDINGSLLC - Reyes Holdings, L.L.C. | 2.3K | — | 9 |
| AS399359US | MAX - Maxcy | 2.3K | — | 9 |
| AS393836US | GSG - Grant Street Group, INC. | 2.3K | — | 5 |
| AS53559US | ANONYMIZER - KST Networks | 2.3K | — | 9 |
| AS40780US | VASPIAN-BFLO - Vaspian LLC | 2.3K | — | 2 |
| AS397269US | FLEX-DMF - Flextronics International USA, Inc. | 2.3K | — | 5 |
| AS16581US | DEEPINFRA-01 - Deep Infra Inc. | 2.3K | — | 9 |
| AS13702US | INGRAM-BOOK-GROUP - Ingram Book Group | 2.3K | — | 6 |
| AS30211US | GWI-WW-ASN - Gallatin Wireless Internet, LLC | 2.3K | 65.5K | 6 |
| AS32328US | ALASCOM-IP-MANAGED-NETWORK - Alascom, Inc. | 2.3K | — | 6 |
| AS19153US | UTMARTIN - The University of Tennessee at Martin | 2.3K | — | 4 |
| AS19311US | STEWART-1 - Stewart Title | 2.3K | — | 9 |
| AS395512US | GLOBAL2016 - GLOBALHOSTINGSOLUTIONS INC | 2.3K | 65.5K | 6 |
| AS401243US | KOMI-NET - Komi LLC | 2.3K | 45 | 54 |
| AS19183US | SHAFTER-ONLINE-01 - City of Shafter | 2.3K | 65.5K | 3 |
| AS55113US | UNIVERSITY-OF-REDLANDS - University of Redlands | 2.3K | — | 5 |
| AS30113US | DEMATIC-US - Dematic Corp. | 2.3K | — | 6 |
| AS394973US | AARKI - Aarki, Inc. | 2.3K | — | 9 |
| AS398772US | FIBERASN-US - Fiber Optical Network LLC | 2.3K | — | 6 |
| AS14721US | LAYER-7-NETWORKS - Layer 7 Consulting, LLC | 2.3K | — | 3 |
| AS36675US | CCPS-1 - Collier County Public Schools | 2.3K | — | 4 |
| AS14060US | BKD-AS - Brookdale Senior Living Inc | 2.3K | — | 4 |
| AS401905US | MOONLITE - Moonlite AI Inc. | 2.3K | — | 7 |
| AS15215US | FARMERS-NETWORK - Farmers Group, Inc. | 2.3K | — | 6 |
| AS6950US | LAMBDA - Lambda Telecom | 2.3K | — | 7 |
| AS19032US | WLETC - Wireless Etc Inc. | 2.3K | 65.5K | 10 |
| AS55248US | WHOA-NETWORKS - Whoa Networks Inc | 2.3K | — | 9 |