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  1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.128.0.0/16

121.128.0.0/16 IP Range

Summary

ASNs
4
Countries
1
BGP Prefixes6
Routers
62
Pingable IPs
26,927

Top Countries

Top BGP Prefixes

Top ASNs

  • AS4766 Korea Telecom
    98.05%
  • AS38122 Seoul Guarantee Insurance Company
    0.78%
  • AS9647 Seoul Metropolitan Government
    0.78%
  • AS152214 Korean Air Lines
    0.39%
121.128.0.0/24 South Korea 100%110
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Pingable IPs

26,927 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
121.128.103.84AS4766 Korea Telecom1.05ms from Seoul,  KR
121.128.10.31AS4766 Korea Telecom1.15ms from Seoul,  KR
121.128.59.254AS4766 Korea Telecom1.25ms from Seoul,  KR
121.128.95.109AS4766 Korea Telecom1.23ms from Seoul,  KR
121.128.113.3AS4766 Korea Telecom1.60ms from Seoul,  KR
121.128.80.13AS4766 Korea Telecom1.39ms from Seoul,  KR
121.128.108.242AS4766 Korea Telecom1.23ms from Seoul,  KR
121.128.56.216AS4766 Korea Telecom1.24ms from Seoul,  KR
121.128.109.197AS4766 Korea Telecom1.40ms from Seoul,  KR
121.128.121.149AS4766 Korea Telecom1.29ms 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.
204.10.251.80AS10835 Visionary Communications LLC4.34ms from Denver,  US
3.29.154.144AS16509 Amazon.com, Inc.0.11ms from Dubai,  AE
187.142.63.128AS8151 UNINET8.86ms from Guadalajara,  MX
103.197.70.0AS32135 SAKURA LTD.0.93ms from Hong Kong,  HK
188.59.111.112AS16135 Turkcell A.S.18.27ms from Istanbul,  TR
87.242.251.0AS13285 TalkTalk Communications Limited0.60ms from London,  GB
112.69.162.112AS17511 OPTAGE Inc.2.21ms from Osaka,  JP
34.7.186.48AS396982 Google LLC0.14ms from Oudeschip,  NL
46.247.165.192AS8368 BENESOL BACKBONE1.13ms from Paris,  FR
4.149.226.176AS8075 Microsoft Corporation0.28ms from Quincy,  US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 121.128.9.213
traceroute to 121.128.9.213 (121.128.9.213): 64 hops max, 52 byte packets
1 [AS15169] 108.170.241.37 0.856 ms
2 [AS15169] 142.251.199.60 1.062 ms
3 *
4 *
5 *
6 *
7 [AS4766] 112.188.15.10 5.73 ms
8 [AS4766] 61.72.71.158 3.088 ms
9 *
10 *
11 [AS4766] 121.128.9.213 2.165 ms
Measurement taken from  IPinfo ProbeNet in Seoul, KR
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