118.229.40.0/22

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 118.228.0.0/15
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        118.228.0.0 - 118.229.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing 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:  2020-09-03T09:16:16Z
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:          118.228.152.0/22
descr:          CERNET-CBCNET
origin:         AS45587
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-05-15T03:57:49Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 118.229.40.0/22

Range ASN Company Num of IPs
118.228.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 118.229.0.0/16

Range ASN Company Num of IPs
118.228.0.0/15 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

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

IP Address ASN Details
118.229.40.254 AS4538 China Education and Research Network Center 3.23ms from Tianjin, CN
118.229.41.49 AS4538 China Education and Research Network Center 2.90ms from Beijing, CN
118.229.43.78 AS4538 China Education and Research Network Center 2.24ms from Beijing, CN
118.229.42.109 AS4538 China Education and Research Network Center 2.15ms from Beijing, 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
91.150.126.182 AS8400 TELEKOM SRBIJA a.d. 1.02ms from Belgrade, RS
140.31.147.6 AS668 United States Department of Defense (DoD) 4.17ms from Chicago, US
99.23.30.102 AS7018 AT&T Enterprises, LLC 9.69ms from Chicago, US
74.137.105.198 AS10796 Charter Communications Inc 11.00ms from Columbus, US
189.101.103.166 AS28573 Claro NXT Telecomunicacoes Ltda 7.76ms from Curitiba, BR
125.92.31.246 AS136199 CHINANET Guangdong province Yuedong MAN network 4.16ms from Guangzhou, CN
182.16.29.182 AS45753 Netsec Limited 0.53ms from Hong Kong, HK
41.175.136.22 AS30844 Liquid Telecommunications Ltd 10.21ms from Johannesburg, ZA
77.102.114.6 AS5089 Virgin Media Limited 11.40ms from London, GB
176.253.73.182 AS5607 Sky UK Limited 8.48ms from London, GB
74.255.249.86 AS6389 AT&T Enterprises, LLC 5.55ms from Miami, US
203.203.3.70 AS9416 Hoshin Multimedia Center Inc. 3.44ms from Taipei, TW
89.219.136.70 AS3327 CITIC Telecom CPC Netherlands B.V. 0.59ms from Tallinn, EE
34.105.50.70 AS396982 Google LLC 0.12ms from The Dalles, US
116.82.33.38 AS2527 Sony Network Communications Inc. 1.39ms from Tokyo, JP
73.102.70.134 AS7922 Comcast Cable Communications, LLC 14.77ms from Chicago, US
3.138.210.118 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
34.71.160.134 AS396982 Google LLC 0.12ms from Council Bluffs, US
212.18.195.134 AS8937 VSE NET GmbH 3.56ms from Frankfurt am Main, DE
2.164.67.6 AS3320 Deutsche Telekom AG 13.33ms from Hamburg, DE
8.217.197.22 AS45102 Alibaba (US) Technology Co., Ltd. 0.54ms from Hong Kong, HK
222.237.60.150 AS9318 SK Broadband Co Ltd 1.74ms from Incheon, KR
195.38.85.246 AS5413 Wavenet Limited 1.87ms from London, GB
35.215.65.54 AS15169 Google LLC 0.10ms from Los Angeles, US
124.91.3.166 AS4837 CHINA UNICOM China169 Backbone 5.59ms from Ningbo, CN

Traceroute

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

$
traceroute -a -n -q1 -f6 118.229.41.54
traceroute to 118.229.41.54 (118.229.41.54): 64 hops max, 52 byte packets
6 [AS4538] 101.4.130.105 5.142 ms
7 [AS4538] 121.194.11.42 6.354 ms
8 *
9 *
10 [AS4538] 210.25.189.237 6.805 ms
11 [AS4538] 210.25.189.101 4.249 ms
12 *
13 *
14 *
15 *
16 [AS4538] 118.229.41.54 5.755 ms
Measurement taken from IPinfo ProbeNet in Beijing, CN
On

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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