121.192.0.0/16
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | SHR-CERNET |
WHOIS Details
inetnum: 121.192.0.0 - 121.192.255.255 netname: SHR-CERNET descr: China Education and Research Network descr: Shanghai Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:25Z source: APNIC irt: IRT-CERNET-AP address: Network Research Center, address: Main Bldg, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 fax-no: +86-10-62785933 e-mail: abuse@cernet.edu.cn abuse-mailbox: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: abuse@cernet.edu.cn was validated on 2025-08-15 mnt-by: MAINT-CERNET-AP last-modified: 2025-11-18T00:26:28Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Research Center, address: Main Bldg, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 e-mail: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: abuse@cernet.edu.cn was validated on 2025-08-15 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2025-08-15T09:38:28Z source: APNIC role: CERNET Helpdesk address: CERNET Center address: Beijing 100084, China country: CN phone: +86-10-6278-4049 fax-no: +86-10-6278-5933 e-mail: helpdesk@cernet.edu.cn remarks: abuse@cernet.edu.cn admin-c: XL1-CN tech-c: SZ2-AP nic-hdl: CER-AP mnt-by: MAINT-CERNET-AP last-modified: 2020-09-03T09:14:12Z source: APNIC route: 121.192.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 121.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.128.0.0/11 | AS17588 | Korea Telecom | 2,097,152 |
| 121.128.0.0/11 | AS9856 | Korea Telecom | 2,097,152 |
| 121.160.0.0/11 | AS38089 | Korea Telecom | 2,097,152 |
| 121.128.0.0/11 | AS18333 | Korea Telecom | 2,097,152 |
| 121.128.0.0/11 | AS38122 | Korea Telecom | 2,097,152 |
| 121.128.0.0/11 | AS9647 | Korea Telecom | 2,097,152 |
| 121.160.0.0/11 | AS4766 | Korea Telecom | 2,097,152 |
| 121.160.0.0/11 | AS23582 | Korea Telecom | 2,097,152 |
| 121.128.0.0/11 | AS4766 | Korea Telecom | 2,097,152 |
| 121.224.0.0/12 | AS146966 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS134770 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS134756 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS140292 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS137702 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS137697 | CHINANET jiangsu province network | 1,048,576 |
| 121.224.0.0/12 | AS4134 | CHINANET jiangsu province network | 1,048,576 |
| 121.208.0.0/12 | AS1221 | Telstra Limited | 1,048,576 |
| 121.224.0.0/12 | AS137699 | CHINANET jiangsu province network | 1,048,576 |
| 121.112.0.0/13 | AS4713 | NTT DOCOMO BUSINESS,Inc. | 524,288 |
| 121.8.0.0/13 | AS136199 | CHINANET Guangdong province network | 524,288 |
| 121.8.0.0/13 | AS135089 | CHINANET Guangdong province network | 524,288 |
| 121.16.0.0/13 | AS4837 | China Unicom Hebei province network | 524,288 |
| 121.8.0.0/13 | AS4134 | CHINANET Guangdong province network | 524,288 |
| 121.8.0.0/13 | AS140308 | CHINANET Guangdong province network | 524,288 |
| 121.204.0.0/14 | AS133775 | CHINANET Fujian province network | 262,144 |
| 121.204.0.0/14 | AS133774 | CHINANET Fujian province network | 262,144 |
| 121.196.0.0/14 | AS37963 | Aliyun Computing Co., LTD | 262,144 |
| 121.64.0.0/14 | AS3786 | LG DACOM Corporation | 262,144 |
| 121.40.0.0/14 | AS37963 | Aliyun Computing Co., LTD | 262,144 |
| 121.64.0.0/14 | AS23555 | LG DACOM Corporation | 262,144 |
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
| 121.204.0.0/14 | AS133776 | CHINANET Fujian province network | 262,144 |
| 121.32.0.0/14 | AS4134 | CHINANET Guangdong province network | 262,144 |
| 121.84.0.0/14 | AS17511 | OPTAGE Inc. | 262,144 |
| 121.64.0.0/14 | AS17586 | LG DACOM Corporation | 262,144 |
| 121.60.0.0/14 | AS4134 | CHINANET Hubei province network | 262,144 |
| 121.60.0.0/14 | AS148981 | CHINANET Hubei province network | 262,144 |
| 121.24.0.0/14 | AS4837 | China Unicom Hebei province network | 262,144 |
| 121.204.0.0/14 | AS4134 | CHINANET Fujian province network | 262,144 |
| 121.80.0.0/14 | AS17511 | OPTAGE Inc. | 262,144 |
| 121.64.0.0/14 | AS17598 | LG DACOM Corporation | 262,144 |
| 121.56.0.0/15 | AS4134 | CHINANET neimeng province network | 131,072 |
| 121.2.0.0/15 | AS2527 | Sony Network Communications Inc. | 131,072 |
| 121.44.0.0/15 | AS4739 | iiNet Limited | 131,072 |
| 121.98.0.0/15 | AS9790 | Two Degrees Mobile Limited | 131,072 |
| 121.44.0.0/15 | AS7545 | iiNet Limited | 131,072 |
| 121.124.0.0/15 | AS9318 | SK Broadband Co Ltd | 131,072 |
| 121.4.0.0/15 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 131,072 |
| 121.28.0.0/15 | AS4837 | China Unicom Hebei province network | 131,072 |
| 121.194.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are 9 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 121.192.180.71 | dddui.com | 2 |
| 121.192.180.175 | taipp.com | 1 |
| 121.192.191.116 | marineproteomics.com | 1 |
Hosted domains API
Pingable IPs
1,517 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.192.191.132 |
13.77ms from Guangzhou,
CN
|
|
| 121.192.178.179 |
12.49ms from Guangzhou,
CN
|
|
| 121.192.177.170 |
12.67ms from Guangzhou,
CN
|
|
| 121.192.190.41 |
12.83ms from Guangzhou,
CN
|
|
| 121.192.131.9 |
14.34ms from Wuhan,
CN
|
|
| 121.192.179.118 |
13.20ms from Guangzhou,
CN
|
|
| 121.192.130.208 |
14.36ms from Wuhan,
CN
|
|
| 121.192.181.187 |
13.09ms from Guangzhou,
CN
|
|
| 121.192.180.214 |
13.78ms from Guangzhou,
CN
|
|
| 121.192.18.25 |
6.90ms from Hangzhou,
CN
|
|
| 121.192.38.137 |
12.72ms from Hangzhou,
CN
|
|
| 121.192.3.21 |
8.99ms from Hangzhou,
CN
|
|
| 121.192.37.148 |
12.72ms from Hangzhou,
CN
|
|
| 121.192.39.255 |
10.26ms from Hangzhou,
CN
|
|
| 121.192.50.0 |
6.09ms from Hangzhou,
CN
|
|
| 121.192.60.40 |
5.91ms from Hangzhou,
CN
|
|
| 121.192.30.32 |
7.62ms from Hangzhou,
CN
|
|
| 121.192.32.222 |
9.58ms from Hangzhou,
CN
|
|
| 121.192.33.1 |
9.88ms from Hangzhou,
CN
|
|
| 121.192.0.3 |
9.63ms from Hangzhou,
CN
|
|
| 121.192.20.143 |
6.93ms from Hangzhou,
CN
|
|
| 121.192.40.100 |
12.03ms from Hangzhou,
CN
|
|
| 121.192.12.10 |
8.02ms from Hangzhou,
CN
|
|
| 121.192.11.1 |
9.39ms from Hangzhou,
CN
|
|
| 121.192.24.3 |
6.61ms from Hangzhou,
CN
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 82.117.221.64 |
0.94ms from Belgrade,
RS
|
|
| 197.37.194.16 |
5.25ms from Cairo,
EG
|
|
| 200.53.76.0 |
18.19ms from Fortaleza,
BR
|
|
| 171.232.108.128 |
1.05ms from Ho Chi Minh City,
VN
|
|
| 1.28.132.48 |
3.90ms from Hohhot,
CN
|
|
| 79.28.82.0 |
8.14ms from Milan,
IT
|
|
| 46.191.182.160 |
10.82ms from Moscow,
RU
|
|
| 104.19.40.176 |
0.11ms from Wrocław,
PL
|
|
| 125.47.54.48 |
1.33ms from Zhengzhou,
CN
|
|
| 41.109.143.176 |
12.07ms from Algiers,
DZ
|
|
| 92.69.118.0 |
10.23ms from Amsterdam,
NL
|
|
| 52.87.153.32 |
0.49ms from Ashburn,
US
|
|
| 98.25.236.80 |
10.20ms from Atlanta,
US
|
|
| 85.85.164.160 |
1.24ms from Barcelona,
ES
|
|
| 111.167.197.144 |
4.21ms from Beijing,
CN
|
|
| 172.168.19.0 |
0.22ms from Des Moines,
US
|
|
| 92.59.217.16 |
8.96ms from Madrid,
ES
|
|
| 43.159.99.208 |
0.12ms from Madrid,
ES
|
|
| 95.233.2.144 |
1.84ms from Milan,
IT
|
|
| 138.124.14.208 |
0.48ms from Moscow,
RU
|
|
| 178.69.154.208 |
10.99ms from Saint Petersburg,
RU
|
|
| 108.176.204.176 |
18.52ms from Secaucus,
US
|
|
| 114.214.190.96 |
11.01ms from Shanghai,
CN
|
|
| 8.135.199.32 |
1.64ms from Shenzhen,
CN
|
|
| 103.56.50.0 |
1.61ms from Tokyo,
JP
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Guangzhou, CN
What are IP address ranges?
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