21.21.0.0/16

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Summary

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

United States
100.00%


21.21.0.0/24	United States100.00%	1	1
21.21.1.0/24	United States100.00%	1	1
21.21.2.0/24	United States100.00%	1	1
21.21.3.0/24	United States100.00%	1	1
21.21.4.0/24	United States100.00%	1	1
21.21.5.0/24	United States100.00%	1	1
21.21.6.0/24	United States100.00%	1	1
21.21.7.0/24	United States100.00%	1	1
21.21.8.0/24	United States100.00%	1	1
21.21.9.0/24	United States100.00%	1	1

Sub-ranges

Pingable IPs

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


21.21.21.1	AS749United States Department of Defense (DoD)	23.99ms from Fortaleza, BR

Other Pingable IPs

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


60.94.173.176	AS17676SoftBank Corp.	4.14ms from Osaka, JP
186.71.10.16	AS14522SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	2.33ms from Quito, EC
46.153.73.176	AS35819Etihad Etisalat, a joint stock company	3.65ms from Riyadh, SA
24.139.98.32	AS14638Liberty Communications of Puerto Rico LLC	3.50ms from San Juan, PR
220.93.255.160	AS4766Korea Telecom	6.14ms from Seoul, KR
60.51.244.48	AS4788TM TECHNOLOGY SERVICES SDN. BHD.	2.67ms from Sepang, MY
126.224.111.112	AS17676SoftBank Corp.	3.46ms from Tokyo, JP
142.188.9.64	AS577Bell Canada	1.26ms from Toronto, CA
216.254.168.0	AS6407Primus Telecommunications Canada Inc.	0.26ms from Toronto, CA
79.131.9.224	AS6799Ote SA (Hellenic Telecommunications Organisation)	0.95ms from Athens, GR

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 -f4 -m10 21.21.38.179

traceroute to 21.21.38.179 (21.21.38.179): 10 hops max, 52 byte packets

4 [AS15146] 69.4.173.8 1.571 ms

5 [AS15146] 24.51.124.74 2.233 ms

6 [AS15146] 24.51.124.66 6.533 ms

7 [AS3257] 74.199.196.89 42.64 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Nassau, BS

On August 15, 2026

Traceroute

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21.21.0.0/16

Summary

Sub-ranges

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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21.21.0.0/16

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