121.104.0.0/16

Access unlimited lookups, API and downloads, data enrichment, and Probenet Live.

Summary

IP address summary information
ASNs	1
Countries	1
BGP Prefixes	1
Routers	0
Pingable IPs	5,054

Japan
100.00%


121.104.0.0/24	Japan100.00%	1	1
121.104.1.0/24	Japan100.00%	1	1
121.104.2.0/24	Japan100.00%	1	1
121.104.3.0/24	Japan100.00%	1	1
121.104.4.0/24	Japan100.00%	1	1
121.104.5.0/24	Japan100.00%	1	1
121.104.6.0/24	Japan100.00%	1	1
121.104.7.0/24	Japan100.00%	1	1
121.104.8.0/24	Japan100.00%	1	1
121.104.9.0/24	Japan100.00%	1	1

Sub-ranges

Pingable IPs

5,054 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.


121.104.254.1	AS2516KDDI CORPORATION	3.52ms from Tokyo, JP
121.104.244.1	AS2516KDDI CORPORATION	2.28ms from Tokyo, JP
121.104.248.1	AS2516KDDI CORPORATION	2.31ms from Tokyo, JP
121.104.252.1	AS2516KDDI CORPORATION	2.43ms from Tokyo, JP
121.104.159.2	AS2516KDDI CORPORATION	8.88ms from Osaka, JP
121.104.211.1	AS2516KDDI CORPORATION	4.36ms from Sendai, JP
121.104.113.110	AS2516KDDI CORPORATION	27.81ms from Tokyo, JP
121.104.132.1	AS2516KDDI CORPORATION	3.84ms from Tokyo, JP
121.104.191.1	AS2516KDDI CORPORATION	12.23ms from Sendai, JP
121.104.98.149	AS2516KDDI CORPORATION	18.20ms from Tokyo, JP

Other Pingable IPs

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


44.232.27.128	AS16509Amazon.com, Inc.	0.20ms from Boardman, US
116.170.41.224	AS4837CHINA UNICOM China169 Backbone	1.46ms from Chengdu, CN
84.135.21.16	AS3320Deutsche Telekom AG	4.42ms from Duesseldorf, DE
98.45.244.144	AS7922Comcast Cable Communications, LLC	5.83ms from Fremont, US
27.153.144.192	AS4134CHINANET BACKBONE	4.29ms from Fuzhou, CN
114.104.119.64	AS4134CHINANET BACKBONE	6.39ms from Huainan, CN
61.214.250.16	AS4713NTT DOCOMO BUSINESS,Inc.	6.11ms from Osaka, JP
91.121.87.112	AS16276OVH SAS	0.13ms from Roubaix, FR
153.206.173.144	AS4713NTT DOCOMO BUSINESS,Inc.	3.38ms from Tokyo, JP
201.120.94.96	AS8151Uninet S.A. de C.V.	19.78ms from Tucson, US

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 -f2 121.104.27.218

traceroute to 121.104.27.218 (121.104.27.218): 64 hops max, 52 byte packets

2 [AS9002] 87.245.237.16 4.632 ms

3 [AS9002] 87.245.233.137 16.574 ms

4 [AS3257] 213.39.66.201 16.569 ms

5 [AS3257] 89.149.130.25 181.479 ms

6 [AS3257] 208.116.133.198 179.144 ms

7 [AS2516] 203.181.106.225 181.159 ms

8 [AS2516] 106.187.12.13 288.191 ms

9 [AS2516] 27.80.241.158 289.716 ms

10 [AS2516] 27.85.230.78 289.255 ms

11 [AS2516] 175.129.8.6 289.224 ms

12 [AS2516] 175.129.11.157 289.201 ms

13 *

14 *

15 [AS2516] 121.104.27.218 354.574 ms

Measurement taken from

IPinfo ProbeNet in Kyiv, UA

On August 7, 2026

Traceroute

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

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

121.104.0.0/16

Summary

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

Pingable IPs

Other Pingable IPs

Traceroute

121.104.0.0/16

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