161.21.0.0/16

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Summary

IP address summary information
ASNs	1
Countries	1
BGP Prefixes	1
Routers	4
Pingable IPs	21

United States
100.00%


161.21.0.0/24	United States100.00%	1	1
161.21.1.0/24	United States100.00%	1	1
161.21.2.0/24	United States100.00%	1	1
161.21.3.0/24	United States100.00%	1	1
161.21.4.0/24	United States100.00%	1	1
161.21.5.0/24	United States100.00%	1	1
161.21.6.0/24	United States100.00%	1	1
161.21.7.0/24	United States100.00%	1	1
161.21.8.0/24	United States100.00%	1	1
161.21.9.0/24	United States100.00%	1	1

Sub-ranges

Important routers in 161.21.0.0/16


161.21.24.11	East Lansing, United States	AS63102Michigan Education Special Services Association
161.21.24.50	East Lansing, United States	AS63102Michigan Education Special Services Association
161.21.24.10	East Lansing, United States	AS63102Michigan Education Special Services Association

Important routers in 161.21.0.0/16

Pingable IPs

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


161.21.0.4	AS63102Michigan Education Special Services Association	1.91ms from Grand Rapids, US
161.21.27.253	AS63102Michigan Education Special Services Association	1.94ms from Grand Rapids, US
161.21.24.1	AS63102Michigan Education Special Services Association	2.09ms from Grand Rapids, US

Other Pingable IPs

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


20.61.140.192	AS8075Microsoft Corporation	0.31ms from Amsterdam, NL
139.140.78.16	AS22847Bowdoin College	4.10ms from Boston, US
117.216.109.96	AS9829National Internet Backbone	12.10ms from Chennai, IN
189.154.45.160	AS8151Uninet S.A. de C.V.	5.86ms from El Paso, US
90.118.20.240	AS3215Orange S.A.	13.95ms from Marseille, FR
106.70.139.48	AS4804Microplex PTY LTD	2.55ms from Melbourne, AU
50.93.48.112	AS16509Amazon.com, Inc.	0.14ms from Milan, IT
121.238.28.176	AS4134CHINANET BACKBONE	4.64ms from Nanjing, CN
101.65.75.192	AS4837CHINA UNICOM China169 Backbone	10.71ms from Ningbo, CN
176.148.73.16	AS5410Bouygues Telecom SA	1.49ms from Paris, FR

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 -f7 -m10 161.21.199.57

traceroute to 161.21.199.57 (161.21.199.57): 10 hops max, 52 byte packets

7 [AS6939] 184.105.213.230 40.941 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Bucharest, RO

On August 15, 2026

Traceroute

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161.21.0.0/16

Summary

Sub-ranges

Important routers in 161.21.0.0/16

Important routers in 161.21.0.0/16

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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Important routers in 161.21.0.0/16

Pingable IPs

Other Pingable IPs

Traceroute

161.21.0.0/16

Summary

Statistics

Statistics

Sub-ranges

Sub-ranges

Important routers in 161.21.0.0/16

Important routers in 161.21.0.0/16

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

Important routers in 161.21.0.0/16

Pingable IPs

Other Pingable IPs

Traceroute