42.245.248.0/22

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID YSBN-CN

WHOIS Details

inetnum:        42.245.248.0 - 42.245.248.255
netname:        YSBN-CN
descr:          ~{H|6{PB<<Ju~}
descr:          CERNET New Technology Co., Ltd
descr:          Beijing 100084, China
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2022-05-30T03:21:35Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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:          42.245.192.0/18
descr:          CERNET Newtech
origin:         AS133111
mnt-by:         MAINT-CERNET-AP
last-modified:  2017-03-14T04:00:08Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 42.245.0.0/16

Range ASN Company Num of IPs
42.245.232.0/22 AS4538 CERNET New Technology Co., Ltd 1,024
42.245.247.0/24 AS4538 CERNET New Technology Co., Ltd 256
42.245.253.0/24 AS4538 CERNET New Technology Co., Ltd 256
42.245.254.0/24 AS4538 CERNET New Technology Co., Ltd 256

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

2 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
42.245.250.254 AS4538 China Education and Research Network Center 7.97ms from Shanghai, CN
42.245.248.1 AS4538 China Education and Research Network Center 8.14ms 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
188.91.166.22 AS50266 Odido Netherlands B.V. 4.52ms from Amsterdam, NL
68.72.92.70 AS7018 AT&T Enterprises, LLC 3.65ms from Atlanta, US
172.75.64.166 AS11426 Charter Communications Inc 5.88ms from Charlotte, US
86.44.34.38 AS5466 Eircom Limited 3.80ms from Dublin, IE
14.29.44.70 AS4134 CHINANET-BACKBONE 2.64ms from Guangzhou, CN
42.100.63.102 AS4134 CHINANET-BACKBONE 2.74ms from Harbin, CN
14.169.219.230 AS45899 VNPT Corp 1.28ms from Ho Chi Minh City, VN
76.186.135.230 AS11427 Charter Communications Inc 9.61ms from Houston, US
75.36.87.134 AS7018 AT&T Enterprises, LLC 2.60ms from Los Angeles, US
77.224.28.38 AS12430 VODAFONE ESPANA S.A.U. 8.44ms from Madrid, ES
202.57.116.22 AS7629 EPLDT 4.27ms from Manila, PH
213.215.217.102 AS8220 COLT Technology Services Group Limited 0.80ms from Milan, IT
84.221.208.54 AS8612 Tiscali Italia S.P.A. 7.75ms from Milan, IT
200.40.149.118 AS6057 Administracion Nacional de Telecomunicaciones 1.45ms from Montevideo, UY
23.194.206.214 AS20940 Akamai International B.V. 0.28ms from Seattle, US
116.230.10.6 AS4812 China Telecom (Group) 4.69ms from Shanghai, CN
51.21.189.246 AS16509 Amazon.com, Inc. 0.12ms from Stockholm, SE
192.121.68.166 AS204302 Monitor ERP System AB 5.39ms from Stockholm, SE
113.200.157.102 AS4837 CHINA UNICOM China169 Backbone 2.80ms from Xi'an, CN
77.235.63.182 AS60781 LeaseWeb Netherlands B.V. 0.38ms from Amsterdam, NL
123.202.183.214 AS9269 Hong Kong Broadband Network Ltd. 0.86ms from Hong Kong, HK
51.148.177.246 AS13037 Zen Internet Ltd 2.10ms from London, GB
88.19.205.230 AS3352 TELEFONICA DE ESPANA S.A.U. 9.68ms from Madrid, ES
213.192.246.6 AS8903 LYNTIA NETWORKS S.A. 0.56ms from Madrid, ES
103.6.181.102 AS132193 Social Security System 0.69ms from Manila, PH

Traceroute

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

$
traceroute -a -n -q1 -f5 -m13 42.245.251.35
traceroute to 42.245.251.35 (42.245.251.35): 13 hops max, 52 byte packets
5 [AS17501] 72.9.128.65 4.973 ms
6 *
7 [] 116.119.161.241 119.147 ms
8 [AS4637] 210.57.80.48 113.289 ms
9 *
10 [AS4538] 101.4.114.181 149.753 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Kathmandu, NP
On

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