DNS Server Issues in South Korea
75 DNS servers in South Korea with detected issues. These servers respond to probes but have problems that may affect usability.
Last updated: · All countries
Servers with issues
75 servers
| IP | ASN | Organization | Issue | Description | Reliability |
|---|---|---|---|---|---|
4.230.113.57
|
AS8075 | Microsoft Corporation | BAD_RESPONSE | Returns unexpected response codes | 47% |
222.122.166.141
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 43% |
221.146.64.94
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 33% |
222.97.189.7
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 16% |
152.70.239.1
|
AS31898 | Oracle Corporation | BAD_RESPONSE | Returns unexpected response codes | 14% |
112.175.232.142
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 10% |
45.64.173.74
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 8% |
222.101.9.212
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 8% |
222.101.9.213
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 8% |
221.154.98.205
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 8% |
118.37.195.251
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 8% |
61.100.13.145
|
AS9848 | Sejong Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
61.100.13.46
|
AS9848 | Sejong Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
3.35.30.185
|
AS16509 | AMAZON-02 | BAD_RESPONSE | Returns unexpected response codes | 6% |
222.122.227.253
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
218.145.31.135
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.63.64.3
|
AS38661 | abcle | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.60.41.183
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.232.116.3
|
AS17877 | NexG Co., LTD | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.237.50.3
|
AS9763 | KIC for Agriculture | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.233.62.178
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.97.19.1
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.206.226.4
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.207.102.134
|
AS9530 | SHINSEGAE I C Co., Ltd. | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.127.253.120
|
AS17833 | NCOM ltd. | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.113.223.93
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.127.211.103
|
AS17833 | NCOM ltd. | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.118.193.105
|
AS4670 | Shinbiro | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.116.119.185
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
180.182.54.12
|
AS38091 | LG HelloVision Corp. | BAD_RESPONSE | Returns unexpected response codes | 6% |
180.182.54.14
|
AS38091 | LG HelloVision Corp. | BAD_RESPONSE | Returns unexpected response codes | 6% |
180.182.54.1
|
AS38091 | LG HelloVision Corp. | BAD_RESPONSE | Returns unexpected response codes | 6% |
180.182.54.11
|
AS38091 | LG HelloVision Corp. | BAD_RESPONSE | Returns unexpected response codes | 6% |
180.182.54.2
|
AS38091 | LG HelloVision Corp. | BAD_RESPONSE | Returns unexpected response codes | 6% |
175.126.226.103
|
AS9318 | SK Broadband Co Ltd | BAD_RESPONSE | Returns unexpected response codes | 6% |
14.63.217.75
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
14.43.0.90
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
125.132.25.162
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
121.78.190.85
|
AS9286 | KINX | BAD_RESPONSE | Returns unexpected response codes | 6% |
121.78.147.191
|
AS17589 | GABIA Inc. | BAD_RESPONSE | Returns unexpected response codes | 6% |
121.254.171.111
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
119.205.215.221
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
110.45.146.30
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.118.193.172
|
AS4670 | Shinbiro | BAD_RESPONSE | Returns unexpected response codes | 6% |
14.47.9.43
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
121.78.56.5
|
AS9286 | KINX | BAD_RESPONSE | Returns unexpected response codes | 6% |
211.38.10.3
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
168.126.93.10
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
221.168.1.1
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 6% |
60.196.71.6
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 5% |
3.37.40.5
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
3.35.28.132
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
14.63.214.131
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.124.101.169
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.125.5.156
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.124.114.92
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.124.111.141
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.124.109.41
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
13.124.107.224
|
AS16509 | Amazon.com, Inc. | BAD_RESPONSE | Returns unexpected response codes | 5% |
119.205.215.222
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 5% |
112.175.103.141
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 5% |
112.175.103.142
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 5% |
110.45.159.202
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 5% |
182.162.21.27
|
AS3786 | LG DACOM Corporation | BAD_RESPONSE | Returns unexpected response codes | 5% |
14.63.217.126
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 5% |
183.111.169.80
|
AS4766 | Korea Telecom | BAD_RESPONSE | Returns unexpected response codes | 4% |
211.236.182.52
|
AS38661 | abcle | BAD_RESPONSE | Returns unexpected response codes | 4% |
192.29.18.149
|
AS31898 | Oracle Corporation | CENSORED | Censors or filters certain domains | 99% |
140.238.31.140
|
AS31898 | Oracle Corporation | CENSORED | Censors or filters certain domains | 98% |
13.124.112.195
|
AS16509 | Amazon.com, Inc. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 98% |
121.254.156.205
|
AS3786 | LG DACOM Corporation | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 97% |
220.93.33.45
|
AS4766 | Korea Telecom | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 97% |
121.254.159.29
|
AS3786 | LG DACOM Corporation | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 97% |
121.254.159.28
|
AS3786 | LG DACOM Corporation | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 97% |
119.194.128.11
|
AS4766 | Korea Telecom | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 50% |
What do these issues mean?
- REFUSED — Server is online but refuses queries from outside its network. Likely an ISP resolver that only serves its own subscribers.
- NX_HIJACK — Server works but redirects non-existent domain lookups to its own IP, typically showing ads instead of an error.
- SERVFAIL — Server responds but returns internal errors. May be misconfigured or overloaded.
- NETWORK_ERROR — Connection to the server failed at the network level.
- NO_ANSWER — Server responds to the query but provides no answer data.
- CENSORED — Server returns different results for certain domains compared to neutral resolvers.