121.133.0.0/16

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Summary

IP address summary information
ASNs	5
Countries	1
BGP Prefixes	5
Routers	88
Pingable IPs	33,301

South Korea
100.00%


121.133.0.0/24	South Korea100.00%	1	1	0
121.133.1.0/24	South Korea100.00%	1	1	0
121.133.2.0/24	South Korea100.00%	1	1	1
121.133.3.0/24	South Korea100.00%	1	1	0
121.133.4.0/24	South Korea100.00%	1	1	0
121.133.5.0/24	South Korea100.00%	1	1	0
121.133.6.0/24	South Korea100.00%	1	1	0
121.133.7.0/24	South Korea100.00%	1	1	1
121.133.8.0/24	South Korea100.00%	1	1	2
121.133.9.0/24	South Korea100.00%	1	1	0

Sub-ranges

Important routers in 121.133.0.0/16


121.133.54.6	Seoul, South Korea	AS4766Korea Telecom
121.133.23.93	Seoul, South Korea	AS4766Korea Telecom
121.133.23.126	Seoul, South Korea	AS4766Korea Telecom
121.133.171.50	Seoul, South Korea	AS4766Korea Telecom
121.133.247.26	Seoul, South Korea	AS4766Korea Telecom
121.133.247.138	Seoul, South Korea	AS4766Korea Telecom
121.133.23.151	Seoul, South Korea	AS4766Korea Telecom
121.133.217.108	Bucheon-si, South Korea	AS4766Korea Telecom
121.133.23.135	Seoul, South Korea	AS4766Korea Telecom
121.133.23.137	Seoul, South Korea	AS4766Korea Telecom

Important routers in 121.133.0.0/16

Pingable IPs

33,301 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.


121.133.34.73	AS4766Korea Telecom	1.37ms from Seoul, KR
121.133.51.30	AS4766Korea Telecom	1.09ms from Seoul, KR
121.133.62.169	AS4766Korea Telecom	1.60ms from Seoul, KR
121.133.2.94	AS4766Korea Telecom	1.10ms from Seoul, KR
121.133.11.235	AS4766Korea Telecom	1.22ms from Seoul, KR
121.133.26.193	AS4766Korea Telecom	0.88ms from Seoul, KR
121.133.35.146	AS4766Korea Telecom	0.94ms from Seoul, KR
121.133.53.71	AS4766Korea Telecom	1.24ms from Seoul, KR
121.133.27.62	AS4766Korea Telecom	1.38ms from Incheon, KR
121.133.50.254	AS4766Korea Telecom	1.28ms from Seoul, KR

Other Pingable IPs

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


31.57.196.16	AS152460Greenhost BV	0.14ms from Amsterdam, NL
157.56.181.176	AS8075Microsoft Corporation	0.56ms from Ashburn, US
201.22.184.128	AS18881TELEFÔNICA BRASIL S.A	3.67ms from Brasilia, BR
84.245.105.96	AS5578SWAN, a.s.	0.62ms from Bratislava, SK
208.102.132.48	AS6181Cincinnati Bell Telephone Company LLC	4.37ms from Columbus, US
62.27.205.96	AS12312ecotel communication ag	4.51ms from Duesseldorf, DE
93.211.157.64	AS3320Deutsche Telekom AG	5.51ms from Frankfurt am Main, DE
95.248.160.32	AS3269Telecom Italia S.p.A.	5.02ms from Milan, IT
197.248.58.112	AS37061Safaricom Limited	6.74ms from Nairobi, KE
133.207.210.0	AS2518BIGLOBE Inc.	5.65ms from Osaka, JP

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 121.133.11.54

traceroute to 121.133.11.54 (121.133.11.54): 64 hops max, 52 byte packets

2 [AS9002] 87.245.232.10 127.751 ms

3 [AS4766] 121.189.3.61 120.342 ms

4 [AS4766] 112.174.80.61 149.149 ms

5 [AS4766] 112.174.86.85 149.211 ms

6 [AS4766] 112.174.47.170 156.708 ms

7 [AS4766] 112.189.0.62 164.791 ms

8 [AS4766] 112.189.7.30 160.793 ms

9 [AS4766] 121.133.11.54 156.371 ms

Measurement taken from

IPinfo ProbeNet in Omsk, RU

On July 12, 2026

Traceroute

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121.133.0.0/16

Summary

Sub-ranges

Important routers in 121.133.0.0/16

Important routers in 121.133.0.0/16

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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Important routers in 121.133.0.0/16

Pingable IPs

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Traceroute

121.133.0.0/16

Summary

Statistics

Statistics

Sub-ranges

Sub-ranges

Important routers in 121.133.0.0/16

Important routers in 121.133.0.0/16

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 121.133.0.0/16

Pingable IPs

Other Pingable IPs

Traceroute