42.245.0.0/16
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 42.244.0.0 - 42.247.255.255 netname: NJR-CERNET descr: China Education and Research Network descr: Nanjing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:28Z 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: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: [email protected] 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: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2025-08-15 abuse-mailbox: [email protected] 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: [email protected] remarks: [email protected] 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: 42.246.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2017-03-14T04:00:08Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 42.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 42.224.0.0/12 | AS4837 | China Unicom Henan province network | 1,048,576 |
| 42.16.0.0/12 | AS9644 | SK Telecom | 1,048,576 |
| 42.32.0.0/12 | AS9644 | SK Telecom | 1,048,576 |
| 42.176.0.0/13 | AS4837 | UNICOM Liaoning Province Network | 524,288 |
| 42.112.0.0/13 | AS18403 | FPT Telecom Company | 524,288 |
| 42.144.0.0/13 | AS9824 | JCOM Co., Ltd. | 524,288 |
| 42.84.0.0/14 | AS9929 | UNICOM Liaoning Province Network | 262,144 |
| 42.56.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.84.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.52.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.188.0.0/14 | AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | 262,144 |
| 42.4.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.202.0.0/15 | AS134762 | CHINANET Liaoning province network | 131,072 |
| 42.80.0.0/15 | AS17638 | CHINANET TIANJIN PROVINCE NETWORK | 131,072 |
| 42.242.0.0/15 | AS4134 | CHINANET YunNan PROVINCE NETWORK | 131,072 |
| 42.80.0.0/15 | AS58542 | CHINANET TIANJIN PROVINCE NETWORK | 131,072 |
| 42.202.0.0/15 | AS4134 | CHINANET Liaoning province network | 131,072 |
| 42.48.0.0/15 | AS4837 | China Unicom HuNan province network | 131,072 |
| 42.192.0.0/15 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 131,072 |
| 42.202.0.0/15 | AS137688 | CHINANET Liaoning province network | 131,072 |
| 42.242.0.0/15 | AS134766 | CHINANET YunNan PROVINCE NETWORK | 131,072 |
| 42.2.0.0/15 | AS4760 | PCCW Limited | 131,072 |
| 42.2.0.0/16 | AS4760 | Hong Kong Telecommunications (HKT) Limited Mass Internet | 65,536 |
| 42.98.0.0/16 | AS4760 | PCCW Limited | 65,536 |
| 42.82.0.0/16 | AS38091 | LG HelloVision Corp. | 65,536 |
| 42.3.0.0/16 | AS4760 | Hong Kong Telecommunications (HKT) Limited Mass Internet | 65,536 |
| 42.122.0.0/16 | AS17638 | CHINANET TIANJIN PROVINCE NETWORK | 65,536 |
| 42.159.0.0/16 | AS58593 | Shanghai Blue Cloud Technology Co.,Ltd | 65,536 |
| 42.3.0.0/16 | AS4515 | Hong Kong Telecommunications (HKT) Limited Mass Internet | 65,536 |
| 42.63.0.0/16 | AS4837 | China Unicom Ningxia Province Network | 65,536 |
| 42.200.0.0/16 | AS4515 | PCCW IMS Ltd (PCCW Business Internet Access) | 65,536 |
| 42.97.0.0/16 | AS4134 | CHINANET Jilin province network | 65,536 |
| 42.158.0.0/16 | AS23724 | 21ViaNet(China),Inc. | 65,536 |
| 42.0.128.0/17 | AS17789 | LocalArea Communication of LangFang LTD. CO. | 32,768 |
| 42.0.128.0/17 | AS138449 | LocalArea Communication of LangFang LTD. CO. | 32,768 |
| 42.51.0.0/17 | AS56005 | Henan Telcom Union Technology Co., LTD | 32,768 |
| 42.51.128.0/17 | AS56005 | Henan Telcom Union Technology Co., LTD | 32,768 |
| 42.194.128.0/17 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 32,768 |
| 42.96.128.0/17 | AS37963 | Aliyun Computing Co., LTD | 32,768 |
| 42.120.128.0/17 | AS37963 | Zhejiang Taobao Network Co.,Ltd | 32,768 |
| 42.156.128.0/17 | AS37963 | Aliyun Computing Co., LTD | 32,768 |
| 42.187.128.0/17 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 32,768 |
| 42.99.128.0/17 | AS4637 | Telstra Global Internet Services Network Blocks | 32,768 |
| 42.83.0.0/18 | AS18135 | BTV CO., LTD. | 16,384 |
| 42.99.0.0/18 | AS139767 | CHINANET Guangdong province network | 16,384 |
| 42.189.192.0/18 | AS4788 | UNIFI-HOME-ibse01.sja | 16,384 |
| 42.0.64.0/18 | AS4780 | New Century InfoComm Tech. Co., Ltd. | 16,384 |
| 42.188.0.0/18 | AS4788 | UNIFI-HOME-imse01.mc_rsh | 16,384 |
| 42.156.192.0/18 | AS37963 | Zhejiang Taobao Network Co.,Ltd | 16,384 |
| 42.125.128.0/18 | AS10010 | TOKAI Communications Corporation | 16,384 |
Hosted domains
There are 4 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 42.245.52.70 | k3legal.co.nz | 4 |
Hosted domains API
Pingable IPs
67 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 42.245.234.118 |
2.10ms from Guangzhou,
CN
|
|
| 42.245.220.1 |
3.21ms from Beijing,
CN
|
|
| 42.245.250.254 |
8.77ms from Shanghai,
CN
|
|
| 42.245.210.81 |
63.85ms from Beijing,
CN
|
|
| 42.245.198.65 |
3.31ms from Beijing,
CN
|
|
| 42.245.201.79 |
2.83ms from Beijing,
CN
|
|
| 42.245.231.1 |
0.83ms from Qingdao,
CN
|
|
| 42.245.209.129 |
8.25ms from Shanghai,
CN
|
|
| 42.245.212.9 |
2.03ms from Shenzhen,
CN
|
|
| 42.245.205.70 |
3.66ms from Beijing,
CN
|
|
| 42.245.252.21 |
7.31ms from Shanghai,
CN
|
|
| 42.245.236.2 |
30.36ms from Beijing,
CN
|
|
| 42.245.248.1 |
8.07ms from Shanghai,
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 |
|---|---|---|
| 41.237.162.48 |
3.54ms from Cairo,
EG
|
|
| 104.139.75.240 |
5.65ms from Charlotte,
US
|
|
| 3.151.124.80 |
0.17ms from Columbus,
US
|
|
| 86.122.52.128 |
1.11ms from Constanţa,
RO
|
|
| 37.136.154.96 |
9.97ms from Helsinki,
FI
|
|
| 116.103.164.160 |
13.20ms from Ho Chi Minh City,
VN
|
|
| 37.54.247.240 |
9.67ms from Kyiv,
UA
|
|
| 78.149.201.240 |
6.15ms from London,
GB
|
|
| 45.48.35.0 |
6.28ms from Los Angeles,
US
|
|
| 90.65.117.176 |
9.95ms from Marseille,
FR
|
|
| 79.32.47.160 |
5.50ms from Milan,
IT
|
|
| 46.13.216.208 |
1.27ms from Prague,
CZ
|
|
| 73.241.111.48 |
5.59ms from San Jose,
US
|
|
| 129.211.1.192 |
1.72ms from Shanghai,
CN
|
|
| 42.61.190.0 |
2.18ms from Singapore,
SG
|
|
| 124.251.58.240 |
3.05ms from Beijing,
CN
|
|
| 84.238.100.96 |
0.92ms from Copenhagen,
DK
|
|
| 73.78.81.96 |
1.81ms from Denver,
US
|
|
| 213.199.41.240 |
0.16ms from Lauterbourg,
FR
|
|
| 34.39.31.224 |
0.12ms from London,
GB
|
|
| 92.234.78.144 |
12.87ms from London,
GB
|
|
| 90.214.20.144 |
7.83ms from London,
GB
|
|
| 73.116.1.208 |
11.15ms from Los Angeles,
US
|
|
| 47.199.111.176 |
6.66ms from Miami,
US
|
|
| 151.60.186.16 |
3.12ms from Milan,
IT
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Bangkok, TH
What are IP address ranges?
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