United States
Top organizations
| Organization | IPs | Ranges |
|---|---|---|
| United States Department of Defense DoD | 303.13M | 15,389 |
| Amazon.com, Inc. | 139.35M | 6,134 |
| AT&T Enterprises, LLC | 127.78M | 29,324 |
| Verizon Business | 97.49M | 23,637 |
| Comcast Cable Communications, LLC | 89.23M | 35,143 |
| Charter Communications, Inc | 46.94M | 21,683 |
| Microsoft Corporation | 33.87M | 742 |
| Level 3 Parent, LLC | 32.20M | 7,490 |
| CenturyLink Communications, LLC | 30.25M | 14,427 |
| Cogent Communications, LLC | 24.54M | 8,078 |
| Charter Communications LLC | 18.96M | 11,322 |
| Apple Inc. | 17.97M | 37 |
| Google, LLC | 17.34M | 883 |
| Frontier Communications of America, Inc. | 16.87M | 14,264 |
| Cox Communications Inc. | 14.67M | 9,362 |
| T-Mobile USA, Inc. | 13.82M | 116 |
| Windstream Communications LLC | 12.34M | 2,564 |
| University of California, San Diego | 10.56M | 709 |
| Headquarters, USAISC | 9.29M | 1,169 |
| Akamai International B.V. | 8.12M | 3,368 |
| Cablevision Systems Corp. | 6.79M | 6,172 |
| RCN | 4.42M | 1,410 |
| NTT America, Inc. | 4.33M | 1,260 |
| The Procter and Gamble Company | 4.13M | 167 |
| Optimum | 4.08M | 4,081 |
Top ASNs
| ASN | Name | IPs |
|---|---|---|
| AS749 | United States Department of Defense (DoD) | 224.59M |
| AS16509 | Amazon.com, Inc. | 117.21M |
| AS7018 | AT&T Enterprises, LLC | 115.24M |
| AS7922 | Comcast Cable Communications, LLC | 88.67M |
| AS701 | Verizon Business | 47.12M |
| AS721 | United States Department of Defense (DoD) | 34.10M |
| AS8075 | Microsoft Corporation | 32.12M |
| AS3356 | Level 3 Parent, LLC | 27.55M |
| AS6167 | Verizon Business | 25.21M |
| AS174 | Cogent Communications, LLC | 24.53M |
| AS14618 | Amazon.com, Inc. | 22.11M |
| AS209 | CenturyLink Communications, LLC | 20.57M |
| AS714 | Apple Inc. | 17.96M |
| AS20115 | Charter Communications LLC | 17.25M |
| AS5650 | Frontier Communications of America, Inc. | 16.34M |
| AS22394 | Verizon Business | 15.19M |
| AS22773 | Cox Communications Inc. | 14.67M |
| AS396982 | Google LLC | 14.00M |
| AS21928 | T-Mobile USA, Inc. | 13.25M |
| AS7029 | Windstream Communications LLC | 12.34M |
| AS306 | United States Department of Defense (DoD) | 12.09M |
| AS7377 | University of California, San Diego | 10.56M |
| AS20001 | Charter Communications Inc | 9.91M |
| AS10796 | Charter Communications Inc | 9.88M |
| AS56 | United States Department of Defense (DoD) | 8.22M |
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 | 492.58M |
37.7%
|
| Government | 295.89M |
22.7%
|
| Hosting / Cloud | 217.54M |
16.7%
|
| Enterprise | 205.17M |
15.7%
|
| Academic / Research | 62.46M |
4.8%
|
| CDN | 16.54M |
1.3%
|
| Mobile | 15.61M |
1.2%
|
| Registry | IPv4 | Share |
|---|---|---|
| ARIN | 1,650.81M |
95.8%
|
| RIPE NCC | 40.51M |
2.4%
|
| APNIC | 20.64M |
1.2%
|
| LACNIC | 7.72M |
0.4%
|
| AFRINIC | 3.65M |
0.2%
|
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 2,672 observed decentralized-network nodes across 9 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 1,899,348,005 IPv4 addresses allocated across 201,000 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.
