Public DNS Servers in Japan
247 servers verified as of — page 1 of 5.
We currently list 247 public DNS servers in Japan, each verified through our automated 72-hour probe cycle. Of these, 74% (182 servers) validate DNSSEC signatures, protecting users from DNS spoofing attacks. Top providers in Japan include Sony Network Communications Inc., AS-CHOOPA, Chubu Telecommunications Company, Inc.. We also track 53 servers with known issues in Japan, including NXDOMAIN hijacking and response errors. For the fastest DNS in Japan, try our latency benchmark from your location. To check your current DNS configuration for leaks and encryption, use the DNS Privacy Check.
DNS quality in Japan
| Median response time | 258 ms (across 247 measured servers) |
|---|---|
| Highly reliable (≥90% uptime) | 232 servers (94%) |
| DNSSEC validating | 182 servers (74%) |
| Servers with known issues | 53 flagged |
Metrics from our last probe cycle: every server in Japan is tested for response time, reliability, DNSSEC validation, and NXDOMAIN integrity on a 72-hour cycle. The median response of 258 ms is measured from our probe locations — servers closer to you will typically respond faster; verify with the latency benchmark.
Local / ISP Providers (245 total)
| IP | ASN | Org | Status | Reliability | Last checked | Tools |
|---|---|---|---|---|---|---|
92.203.123.235
|
AS2527 | Sony Network Communications Inc. | OK | 100% | 07-09-2026 13:14:24 (GMT) | WHOIS |
92.203.123.237
|
AS2527 | Sony Network Communications Inc. | OK | 100% | 07-09-2026 13:14:09 (GMT) | WHOIS |
66.42.33.24
|
AS20473 | AS-CHOOPA | OK | 100% | 07-09-2026 10:20:03 (GMT) | WHOIS |
39.110.209.44
|
AS2527 | Sony Network Communications Inc. | OK | 100% | 07-09-2026 08:46:13 (GMT) | WHOIS |
223.29.52.106
|
AS18126 | Chubu Telecommunications Company, Inc. | OK | 100% | 07-09-2026 08:17:30 (GMT) | WHOIS |
219.163.11.226
|
AS4713 | NTT Communications Corporation | OK | 100% | 07-09-2026 08:13:29 (GMT) | WHOIS |
218.223.34.93
|
AS18070 | Global Network Core Co.,Ltd. | OK | 100% | 07-09-2026 08:12:55 (GMT) | WHOIS |
210.190.25.80
|
AS4713 | NTT Communications Corporation | OK | 100% | 07-09-2026 07:49:09 (GMT) | WHOIS |
210.172.1.251
|
AS9600 | So-net Corporation | OK | 100% | 07-09-2026 07:48:37 (GMT) | WHOIS |
203.178.136.36
|
AS2500 | WIDE Project | OK | 100% | 07-09-2026 07:35:17 (GMT) | WHOIS |
172.104.90.123
|
AS63949 | Akamai Connected Cloud | OK | 100% | 07-09-2026 05:12:00 (GMT) | WHOIS |
163.44.49.226
|
AS2514 | NTT PC Communications, Inc. | OK | 100% | 07-09-2026 04:57:00 (GMT) | WHOIS |
160.16.111.164
|
AS9370 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 04:51:30 (GMT) | WHOIS |
153.150.154.214
|
AS4713 | NTT Communications Corporation | OK | 100% | 07-09-2026 04:39:07 (GMT) | WHOIS |
14.128.21.30
|
AS23637 | Equinix Japan Enterprise K.K. | OK | 100% | 07-09-2026 04:16:15 (GMT) | WHOIS |
124.35.154.159
|
AS17506 | ARTERIA Networks Corporation | OK | 100% | 07-09-2026 03:58:37 (GMT) | WHOIS |
122.214.1.141
|
AS17506 | ARTERIA Networks Corporation | OK | 100% | 07-09-2026 03:53:51 (GMT) | WHOIS |
113.149.254.97
|
AS2516 | KDDI CORPORATION | OK | 100% | 07-09-2026 03:32:36 (GMT) | WHOIS |
218.44.187.8
|
AS4713 | NTT Communications Corporation | OK | 100% | 07-09-2026 08:13:03 (GMT) | WHOIS |
211.10.168.1
|
AS2516 | KDDI CORPORATION | OK | 100% | 07-09-2026 07:50:42 (GMT) | WHOIS |
140.227.38.198
|
AS2514 | NTT PC Communications, Inc. | OK | 100% | 07-09-2026 04:18:14 (GMT) | WHOIS |
218.44.234.170
|
AS4713 | NTT Communications Corporation | OK | 100% | 07-09-2026 08:13:05 (GMT) | WHOIS |
202.229.255.8
|
AS2514 | NTT PC Communications, Inc. | OK | 100% | 07-09-2026 07:30:35 (GMT) | WHOIS |
8.216.82.12
|
AS45102 | Alibaba US Technology Co., Ltd. | OK | 100% | 07-09-2026 11:24:17 (GMT) | WHOIS |
8.216.34.160
|
AS45102 | Alibaba US Technology Co., Ltd. | OK | 100% | 07-09-2026 11:24:16 (GMT) | WHOIS |
61.206.47.244
|
AS4694 | IDC Frontier Inc. | OK | 100% | 07-09-2026 10:05:31 (GMT) | WHOIS |
61.206.47.243
|
AS4694 | IDC Frontier Inc. | OK | 100% | 07-09-2026 10:05:29 (GMT) | WHOIS |
61.121.217.198
|
AS17707 | AS for DATAHOTEL, which is one of iDC in Japan | OK | 100% | 07-09-2026 10:05:11 (GMT) | WHOIS |
50.7.61.75
|
AS30058 | FDCservers.net | OK | 100% | 07-09-2026 09:53:30 (GMT) | WHOIS |
49.212.148.38
|
AS9371 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 09:25:32 (GMT) | WHOIS |
49.212.145.129
|
AS9371 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 09:25:28 (GMT) | WHOIS |
49.212.205.80
|
AS9371 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 09:25:28 (GMT) | WHOIS |
47.245.33.180
|
AS45102 | Alibaba US Technology Co., Ltd. | OK | 100% | 07-09-2026 09:23:29 (GMT) | WHOIS |
46.250.248.145
|
AS141995 | Contabo Asia Private Limited | OK | 100% | 07-09-2026 09:20:44 (GMT) | WHOIS |
43.165.181.207
|
AS132203 | Tencent Building, Kejizhongyi Avenue | OK | 100% | 07-09-2026 08:59:10 (GMT) | WHOIS |
43.165.180.63
|
AS132203 | Tencent Building, Kejizhongyi Avenue | OK | 100% | 07-09-2026 08:59:08 (GMT) | WHOIS |
43.167.176.22
|
AS132203 | Tencent Building, Kejizhongyi Avenue | OK | 100% | 07-09-2026 08:58:59 (GMT) | WHOIS |
43.167.157.97
|
AS132203 | Tencent Building, Kejizhongyi Avenue | OK | 100% | 07-09-2026 08:58:58 (GMT) | WHOIS |
43.133.176.20
|
AS132203 | Tencent Building, Kejizhongyi Avenue | OK | 100% | 07-09-2026 08:58:44 (GMT) | WHOIS |
31.223.184.175
|
AS199524 | G-Core Labs S.A. | OK | 100% | 07-09-2026 08:32:00 (GMT) | WHOIS |
27.133.158.52
|
AS9370 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 08:25:26 (GMT) | WHOIS |
23.106.142.219
|
AS25820 | IT7 Networks Inc | OK | 100% | 07-09-2026 08:18:11 (GMT) | WHOIS |
23.106.142.189
|
AS25820 | IT7 Networks Inc | OK | 100% | 07-09-2026 08:18:09 (GMT) | WHOIS |
219.94.233.144
|
AS9371 | SAKURA Internet Inc. | OK | 100% | 07-09-2026 08:13:52 (GMT) | WHOIS |
217.142.239.111
|
AS31898 | Oracle Corporation | OK | 100% | 07-09-2026 08:08:55 (GMT) | WHOIS |
212.50.252.238
|
AS25820 | IT7 Networks Inc | OK | 100% | 07-09-2026 07:58:06 (GMT) | WHOIS |
211.14.168.27
|
AS4694 | IDC Frontier Inc. | OK | 100% | 07-09-2026 07:50:55 (GMT) | WHOIS |
211.1.228.61
|
AS7671 | NTT SmartConnect Corporation | OK | 100% | 07-09-2026 07:50:41 (GMT) | WHOIS |
210.140.171.162
|
AS4694 | IDC Frontier Inc. | OK | 100% | 07-09-2026 07:48:32 (GMT) | WHOIS |
203.184.98.232
|
AS7671 | NTT SmartConnect Corporation | OK | 100% | 07-09-2026 07:35:30 (GMT) | WHOIS |
DNS tools for Japan
- Test DNS speed from your location — find the fastest server for Japan
- Check your DNS privacy score — test for leaks, encryption, and DNSSEC
- Japan ISP DNS servers — check your ISP's DNS configuration
- Best DNS for gaming
- Best private DNS servers
- All countries