21.81.0.0/16

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Summary

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

United States
100.00%


21.81.0.0/24	United States100.00%	1	1
21.81.1.0/24	United States100.00%	1	1
21.81.2.0/24	United States100.00%	1	1
21.81.3.0/24	United States100.00%	1	1
21.81.4.0/24	United States100.00%	1	1
21.81.5.0/24	United States100.00%	1	1
21.81.6.0/24	United States100.00%	1	1
21.81.7.0/24	United States100.00%	1	1
21.81.8.0/24	United States100.00%	1	1
21.81.9.0/24	United States100.00%	1	1

Sub-ranges

Pingable IPs

Other Pingable IPs

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


203.172.167.176	AS23974Ministry of education	7.78ms from Bangkok, TH
52.39.190.192	AS16509Amazon.com, Inc.	0.18ms from Boardman, US
125.71.58.64	AS4134CHINANET BACKBONE	3.53ms from Chengdu, CN
77.245.70.96	AS20860IOMART CLOUD SERVICES LIMITED	4.30ms from London, GB
45.23.187.48	AS7018AT&T Enterprises, LLC	3.92ms from San Francisco, US
76.137.129.96	AS7922Comcast Cable Communications, LLC	7.72ms from San Jose, US
128.24.52.144	AS8075Microsoft Corporation	0.27ms from Boydton, US
35.240.112.96	AS396982Google LLC	0.15ms from Brussels, BE
180.65.122.16	AS9318SK Broadband Co Ltd	7.77ms from Incheon, KR
185.38.135.80	AS209242Cloudflare London, LLC	0.11ms from Lima, PE

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 -m12 21.81.179.52

traceroute to 21.81.179.52 (21.81.179.52): 12 hops max, 52 byte packets

1 [AS206125] 89.190.6.46 0.259 ms

2 [AS206125] 89.190.6.24 0.104 ms

3 [AS199087] 89.190.1.14 0.902 ms

4 [AS47605] 87.236.158.62 3.679 ms

5 [AS47605] 87.236.154.176 3.873 ms

6 [AS47605] 87.236.154.188 42.169 ms

7 [AS47605] 87.236.154.142 8.703 ms

8 [AS47605] 87.236.154.170 10.024 ms

9 [AS47605] 87.236.154.212 10.045 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Kaustinen, FI

On August 15, 2026

Traceroute

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21.81.0.0/16

Summary

Sub-ranges

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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21.81.0.0/16

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