204.121.0.0/16

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Summary

IP address summary information
ASNs	1
Countries	1
BGP Prefixes	1
Routers	0
Pingable IPs	432

United States
100.00%


204.121.0.0/24	United States100.00%	1	1
204.121.1.0/24	United States100.00%	1	1
204.121.2.0/24	United States100.00%	1	1
204.121.3.0/24	United States100.00%	1	1
204.121.4.0/24	United States100.00%	1	1
204.121.5.0/24	United States100.00%	1	1
204.121.6.0/24	United States100.00%	1	1
204.121.7.0/24	United States100.00%	1	1
204.121.8.0/24	United States100.00%	1	1
204.121.9.0/24	United States100.00%	1	1

Sub-ranges

Pingable IPs

432 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.


204.121.3.13	AS68Los Alamos National Laboratory	11.58ms from Denver, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.


145.136.245.0	AS1103SURF B.V.	0.66ms from Amsterdam, NL
200.169.168.144	AS8167V tal	1.40ms from Brasilia, BR
49.255.104.48	AS4826Vocus Connect International Backbone	0.48ms from Brisbane, AU
189.81.155.16	AS201341trafficforce, UAB	0.24ms from Dallas, US
1.191.145.224	AS4837CHINA UNICOM China169 Backbone	6.77ms from Harbin, CN
99.59.238.0	AS7018AT&T Enterprises, LLC	16.93ms from Los Angeles, US
187.223.226.160	AS8151Uninet S.A. de C.V.	19.69ms from Los Angeles, US
95.237.173.96	AS3269Telecom Italia S.p.A.	3.18ms from Milan, IT
97.185.186.208	AS6167Verizon Business	14.98ms from Seattle, US
24.57.129.176	AS7992Cogeco Connexion Inc.	10.83ms from Toronto, CA

Pingable IPs

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 -f10 -m16 204.121.4.55

traceroute to 204.121.4.55 (204.121.4.55): 16 hops max, 52 byte packets

10 [AS12956] 84.16.10.28 18.527 ms

11 [AS12956] 213.140.49.103 42.024 ms

12 [AS12956] 94.142.98.253 116.224 ms

13 [AS12956] 84.16.13.136 116.148 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Casablanca, MA

On August 7, 2026

Traceroute

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204.121.0.0/16

Summary

Sub-ranges

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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204.121.0.0/16

Summary

Statistics

Statistics

Sub-ranges

Sub-ranges

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Statistics

Sub-ranges

Pingable IPs

Other Pingable IPs

Traceroute