42.244.0.0/16
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: 42.244.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2017-03-14T04:00:07Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 42.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 42.32.0.0/12 | AS9644 | SK Telecom | 1,048,576 |
| 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 |
| 42.144.0.0/13 | AS9824 | JCOM Co., Ltd. | 524,288 |
| 42.176.0.0/13 | AS4837 | UNICOM Liaoning Province Network | 524,288 |
| 42.112.0.0/13 | AS18403 | FPT Telecom Company | 524,288 |
| 42.188.0.0/14 | AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | 262,144 |
| 42.84.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.84.0.0/14 | AS9929 | UNICOM Liaoning Province Network | 262,144 |
| 42.56.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.52.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.4.0.0/14 | AS4837 | UNICOM Liaoning Province Network | 262,144 |
| 42.202.0.0/15 | AS4134 | CHINANET Liaoning province network | 131,072 |
| 42.242.0.0/15 | AS4134 | CHINANET YunNan 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 |
| 42.2.0.0/15 | AS4760 | PCCW Limited | 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 |
| 42.202.0.0/15 | AS134762 | CHINANET Liaoning province network | 131,072 |
| 42.80.0.0/15 | AS58542 | CHINANET TIANJIN PROVINCE NETWORK | 131,072 |
| 42.80.0.0/15 | AS17638 | CHINANET TIANJIN PROVINCE NETWORK | 131,072 |
| 42.3.0.0/16 | AS4515 | Hong Kong Telecommunications (HKT) Limited Mass Internet | 65,536 |
| 42.200.0.0/16 | AS4515 | PCCW IMS Ltd (PCCW Business Internet Access) | 65,536 |
| 42.2.0.0/16 | AS4760 | Hong Kong Telecommunications (HKT) Limited Mass Internet | 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 |
| 42.98.0.0/16 | AS4760 | PCCW Limited | 65,536 |
| 42.158.0.0/16 | AS23724 | 21ViaNet(China),Inc. | 65,536 |
| 42.159.0.0/16 | AS58593 | Shanghai Blue Cloud Technology Co.,Ltd | 65,536 |
| 42.82.0.0/16 | AS38091 | LG HelloVision Corp. | 65,536 |
| 42.97.0.0/16 | AS4134 | CHINANET Jilin province network | 65,536 |
| 42.63.0.0/16 | AS4837 | China Unicom Ningxia Province Network | 65,536 |
| 42.194.128.0/17 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 32,768 |
| 42.187.128.0/17 | AS45090 | Tencent cloud computing (Beijing) Co., Ltd. | 32,768 |
| 42.0.128.0/17 | AS17789 | LocalArea Communication of LangFang LTD. CO. | 32,768 |
| 42.120.128.0/17 | AS37963 | Zhejiang Taobao Network Co.,Ltd | 32,768 |
| 42.96.128.0/17 | AS37963 | Aliyun Computing Co., LTD | 32,768 |
| 42.51.128.0/17 | AS56005 | Henan Telcom Union Technology Co., LTD | 32,768 |
| 42.51.0.0/17 | AS56005 | Henan Telcom Union Technology Co., LTD | 32,768 |
| 42.0.128.0/17 | AS138449 | LocalArea Communication of LangFang LTD. CO. | 32,768 |
| 42.99.128.0/17 | AS4637 | Telstra Global Internet Services Network Blocks | 32,768 |
| 42.156.128.0/17 | AS37963 | Aliyun Computing Co., LTD | 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 |
| 42.156.192.0/18 | AS37963 | Zhejiang Taobao Network Co.,Ltd | 16,384 |
| 42.125.128.0/18 | AS10010 | TOKAI Communications Corporation | 16,384 |
| 42.62.64.0/18 | AS23724 | Forest Eternal Communication Tech. co.ltd | 16,384 |
| 42.156.128.0/18 | AS37963 | Zhejiang Taobao Network Co.,Ltd | 16,384 |
| 42.189.192.0/18 | AS4788 | UNIFI-HOME-ibse01.sja | 16,384 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
5 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 42.244.7.57 |
12.71ms from Shanghai,
CN
|
|
| 42.244.43.138 |
10.18ms from Shanghai,
CN
|
|
| 42.244.8.211 |
10.07ms 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 |
|---|---|---|
| 91.197.143.16 |
0.74ms from Amsterdam,
NL
|
|
| 173.172.247.80 |
16.05ms from Dallas,
US
|
|
| 176.31.47.208 |
0.08ms from Gravelines,
FR
|
|
| 178.184.198.112 |
12.82ms from Krasnoyarsk,
RU
|
|
| 66.78.61.192 |
0.15ms from Los Angeles,
US
|
|
| 68.122.30.112 |
2.55ms from Los Angeles,
US
|
|
| 50.114.163.240 |
0.26ms from Meppel,
NL
|
|
| 77.57.10.128 |
5.66ms from Zuerich,
CH
|
|
| 108.179.248.112 |
0.84ms from Atlanta,
US
|
|
| 177.135.231.144 |
1.80ms from Brasilia,
BR
|
|
| 34.13.64.176 |
1.04ms from Columbus,
US
|
|
| 14.212.192.64 |
3.61ms from Guangzhou,
CN
|
|
| 222.255.235.80 |
0.54ms from Ho Chi Minh City,
VN
|
|
| 39.48.221.144 |
2.27ms from Karachi,
PK
|
|
| 82.106.99.0 |
3.34ms from Milan,
IT
|
|
| 34.17.95.96 |
2.23ms from Milan,
IT
|
|
| 200.159.158.0 |
0.71ms from Rio de Janeiro,
BR
|
|
| 202.253.139.48 |
4.41ms from Tokyo,
JP
|
|
| 69.71.89.128 |
7.52ms from Toronto,
CA
|
|
| 185.248.140.144 |
3.69ms from Berlin,
DE
|
|
| 83.251.138.80 |
8.32ms from Falkenberg,
SE
|
|
| 109.223.245.80 |
12.45ms from Frankfurt am Main,
DE
|
|
| 5.42.137.208 |
8.36ms from Frankfurt am Main,
DE
|
|
| 73.116.253.160 |
4.16ms from Fremont,
US
|
|
| 160.187.55.0 |
0.38ms from Jakarta,
ID
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Abu Dhabi, AE
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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