United States
Top organizations
| Organization | IPs | Ranges |
|---|---|---|
| United States Department of Defense DoD | 285.17M | 13,276 |
| Amazon.com, Inc. | 135.13M | 5,328 |
| AT&T Enterprises, LLC | 101.80M | 22,980 |
| Verizon Business | 80.87M | 17,292 |
| Comcast Cable Communications, LLC | 68.37M | 25,918 |
| Charter Communications, Inc | 38.27M | 15,680 |
| Level 3 Parent, LLC | 30.87M | 6,967 |
| Microsoft Corporation | 29.96M | 698 |
| CenturyLink Communications, LLC | 24.12M | 8,729 |
| Cogent Communications, LLC | 21.61M | 7,052 |
| Google, LLC | 17.75M | 816 |
| Apple Inc. | 16.92M | 33 |
| Charter Communications LLC | 14.56M | 9,022 |
| T-Mobile USA, Inc. | 13.62M | 99 |
| Cox Communications Inc. | 13.05M | 6,985 |
| Frontier Communications of America, Inc. | 10.85M | 7,816 |
| Windstream Communications LLC | 10.34M | 1,947 |
| Headquarters, USAISC | 10.23M | 1,355 |
| University of California, San Diego | 10.02M | 639 |
| Akamai International B.V. | 6.89M | 2,901 |
| Cablevision Systems Corp. | 4.85M | 4,319 |
| RCN | 4.82M | 1,706 |
| The Procter and Gamble Company | 4.09M | 164 |
| NTT America, Inc. | 3.41M | 1,261 |
| Eli Lilly and Company | 3.28M | 30 |
Top ASNs
| ASN | Name | IPs |
|---|---|---|
| AS749 | United States Department of Defense (DoD) | 224.24M |
| AS16509 | Amazon.com, Inc. | 113.53M |
| AS7018 | AT&T Enterprises, LLC | 89.90M |
| AS7922 | Comcast Cable Communications, LLC | 67.85M |
| AS701 | Verizon Business | 40.54M |
| AS721 | United States Department of Defense (DoD) | 29.31M |
| AS8075 | Microsoft Corporation | 28.21M |
| AS3356 | Level 3 Parent, LLC | 26.49M |
| AS174 | Cogent Communications, LLC | 21.60M |
| AS14618 | Amazon.com, Inc. | 21.57M |
| AS6167 | Verizon Business | 18.83M |
| AS714 | Apple Inc. | 16.91M |
| AS209 | CenturyLink Communications, LLC | 15.43M |
| AS396982 | Google LLC | 15.19M |
| AS21928 | T-Mobile USA, Inc. | 13.12M |
| AS22773 | Cox Communications Inc. | 13.05M |
| AS20115 | Charter Communications LLC | 12.51M |
| AS22394 | Verizon Business | 12.09M |
| AS5650 | Frontier Communications of America, Inc. | 10.67M |
| AS7029 | Windstream Communications LLC | 10.34M |
| AS7377 | University of California, San Diego | 10.02M |
| AS56 | United States Department of Defense (DoD) | 7.95M |
| AS1540 | Headquarters, USAISC | 7.77M |
| AS10796 | Charter Communications Inc | 7.47M |
| AS20001 | Charter Communications Inc | 7.15M |
Regions / states / provinces
Network composition
How United States's allocated IPv4 space breaks down by operator type, regional registry, and block size.
| Category | IPv4 | Share |
|---|---|---|
| ISP / Telecom | 453.98M |
36.3%
|
| Government | 291.12M |
23.3%
|
| Hosting / Cloud | 218.56M |
17.5%
|
| Enterprise | 196.76M |
15.7%
|
| Academic / Research | 60.96M |
4.9%
|
| Mobile | 15.28M |
1.2%
|
| CDN | 15.25M |
1.2%
|
| Registry | IPv4 | Share |
|---|---|---|
| ARIN | 1,472.99M |
97.4%
|
| RIPE NCC | 32.80M |
2.2%
|
| APNIC | 3.84M |
0.3%
|
| AFRINIC | 1.83M |
0.1%
|
| LACNIC | 316.8K |
0.0%
|
Routing & security
Live BGP routing footprint for United States from our global collectors, with RPKI route-origin validation coverage.
RPKI-valid % = announced prefixes with a matching Route Origin Authorization. Live routing →
Web3 footprint
United States hosts 8,586 observed decentralized-network nodes across 11 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.
Reverse-DNS, threat intelligence & internet health
How much of United States's address space resolves to a hostname, how much appears on public threat blocklists, how widely the population is online, and independent signals of censorship and outages.
Reverse-DNS + threat-blocklist footprint from our own scanning & 8 threat-intel feeds. Internet adoption from the World Bank; censorship measurements from OONI; outage detection from IODA / Georgia Tech; connection speed from Cloudflare Radar.
Frequently Asked Questions
How many IPv4 addresses are allocated to United States?
United States has 1,511,837,812 IPv4 addresses allocated across 129,352 network ranges. These allocations are managed by regional internet registries and assigned to organizations operating within the country.
What are the largest internet providers in United States?
The top organizations in United States by IP allocation include the major ISPs, hosting providers, and enterprises listed above. These 50 organizations collectively manage the majority of the country's IPv4 address space.
How many ASNs operate in United States?
United States has 50 or more registered Autonomous Systems. Each ASN represents an independently routed network, such as an ISP, cloud provider, or enterprise network.
What continent is United States in?
United States is located in North America. IP address allocations in this region are managed by ARIN.
