118.203.64.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 118.202.0.0/15
Registry APNIC
ID SYR-CERNET

WHOIS Details

inetnum:        118.202.0.0 - 118.203.255.255
netname:        SYR-CERNET
descr:          China Education and Research Network
descr:          Shenyang 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:  2020-09-03T09:16:03Z
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:          118.202.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 118.203.64.0/20

Range ASN Company Num of IPs
118.202.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 118.203.0.0/16

Range ASN Company Num of IPs
118.202.0.0/15 AS4538 China Education and Research Network 131,072

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
107.180.129.84 AS400072 THUNDERBOX INC 2.29ms from Ashburn, US
185.129.49.52 AS207333 Hoster.KZ - Astana 0.92ms from Astana, KZ
79.137.12.132 AS16276 OVH SAS 0.05ms from Gravelines, FR
82.152.189.132 AS8851 GCI Network Solutions Limited 2.18ms from London, GB
204.77.52.52 AS675 Minnesota State Colleges and Universities 1.34ms from Minneapolis, US
24.38.70.228 AS6128 Cablevision Systems Corp. 1.94ms from New York City, US
115.5.94.116 AS4766 Korea Telecom 1.87ms from Seoul, KR
203.209.116.132 AS7693 KSC Commercial Internet Co. Ltd. 0.27ms from Bangkok, TH
90.218.99.68 AS5607 Sky UK Limited 9.20ms from London, GB
74.108.77.116 AS701 Verizon Business 8.73ms from Newark, US
174.83.221.52 AS20115 Charter Communications LLC 10.57ms from San Jose, US
38.12.4.36 AS400619 AROSSCLOUD INC. 0.94ms from San Jose, US
75.226.36.148 AS6167 Verizon Business 6.74ms from San Jose, US
17.138.176.4 AS714 Apple Inc. 7.20ms from San Jose, US
189.151.241.244 AS8151 UNINET 4.49ms from Santiago de Queretaro, MX
121.2.68.84 AS2527 Sony Network Communications Inc. 1.76ms from Tokyo, JP
180.11.241.228 AS4713 NTT DOCOMO BUSINESS,Inc. 2.63ms from Tokyo, JP
4.206.48.132 AS8075 Microsoft Corporation 0.17ms from Toronto, CA
108.4.0.228 AS701 Verizon Business 4.67ms from Ashburn, US
89.0.37.4 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 3.50ms from Duesseldorf, DE
94.15.157.164 AS5607 Sky UK Limited 3.20ms from Erith, GB
171.61.234.164 AS24560 Bharti Airtel Ltd., Telemedia Services 1.83ms from Hyderabad, IN
117.233.185.180 AS9829 National Internet Backbone 6.01ms from Kolkata, IN
42.52.2.244 AS4837 CHINA UNICOM China169 Backbone 7.79ms from Liaoyang, CN
36.129.147.148 AS56044 China Mobile communications corporation 10.67ms from Liaoyang, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m15 118.203.71.102
traceroute to 118.203.71.102 (118.203.71.102): 15 hops max, 52 byte packets
1 [AS142382] 103.172.18.1 321.263 ms
2 *
3 *
4 [AS38158] 121.100.7.1 30.76 ms
5 *
6 [AS4538] 101.4.114.181 98.545 ms
7 *
8 *
9 [AS4538] 101.4.112.82 108.208 ms
10 *
11 [AS4538] 101.4.117.86 114.044 ms
12 [AS4538] 101.4.118.118 117.427 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Denpasar, ID
On

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