118.230.0.0/16

AS4538 · China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        118.230.0.0 - 118.230.255.255
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:  2020-09-03T09:16:17Z
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:          118.230.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 118.0.0.0/8

Range	ASN	Company	Num of IPs
118.0.0.0/12	AS4713	NTT DOCOMO BUSINESS,Inc.	1,048,576
118.248.0.0/13	AS4134	CHINANET Hunan province network	524,288
118.72.0.0/13	AS4837	China Unicom Shanxi province network	524,288
118.248.0.0/13	AS63835	CHINANET Hunan province network	524,288
118.112.0.0/13	AS4134	CHINANET Sichuan province network	524,288
118.112.0.0/13	AS38283	CHINANET Sichuan province network	524,288
118.16.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
118.112.0.0/13	AS139220	CHINANET Sichuan province network	524,288
118.216.0.0/13	AS23579	SK Broadband Co Ltd	524,288
118.216.0.0/13	AS9318	SK Broadband Co Ltd	524,288
118.180.0.0/14	AS147038	CHINANET Gansu province network	262,144
118.140.0.0/14	AS55355	HGC Global Communications Limited	262,144
118.172.0.0/14	AS23969	TOT Public Company Limited	262,144
118.128.0.0/14	AS131811	LG DACOM Corporation	262,144
118.128.0.0/14	AS10167	LG DACOM Corporation	262,144
118.172.0.0/14	AS131293	TOT Public Company Limited	262,144
118.140.0.0/14	AS9304	HGC Global Communications Limited	262,144
118.140.0.0/14	AS38623	HGC Global Communications Limited	262,144
118.128.0.0/14	AS3786	LG DACOM Corporation	262,144
118.68.0.0/14	AS18403	FPT Telecom	262,144
118.108.0.0/14	AS2518	BIGLOBE Inc.	262,144
118.128.0.0/14	AS38661	LG DACOM Corporation	262,144
118.180.0.0/14	AS4134	CHINANET Gansu province network	262,144
118.180.0.0/14	AS141998	CHINANET Gansu province network	262,144
118.128.0.0/14	AS17586	LG DACOM Corporation	262,144
118.120.0.0/14	AS4134	CHINANET Sichuan province network	262,144
118.140.0.0/14	AS140881	HGC Global Communications Limited	262,144
118.120.0.0/14	AS58519	CHINANET Sichuan province network	262,144
118.132.0.0/14	AS9812	Oriental Cable Network Co., Ltd.	262,144
118.208.0.0/14	AS7545	iiNet Limited	262,144
118.140.0.0/14	AS38802	HGC Global Communications Limited	262,144
118.128.0.0/14	AS38428	LG DACOM Corporation	262,144
118.120.0.0/14	AS38283	CHINANET Sichuan province network	262,144
118.120.0.0/14	AS139220	CHINANET Sichuan province network	262,144
118.208.0.0/14	AS4739	iiNet Limited	262,144
118.202.0.0/15	AS4538	China Education and Research Network	131,072
118.228.0.0/15	AS4538	China Education and Research Network	131,072
118.124.0.0/15	AS38283	CHINANET Sichuan province network	131,072
118.24.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
118.236.0.0/15	AS2527	Sony Network Communications Inc.	131,072
118.240.0.0/15	AS2527	Sony Network Communications Inc.	131,072
118.232.0.0/15	AS38841	kbro CO. Ltd.	131,072
118.84.0.0/15	AS4134	CHINANET BACKBONE NETWORK	131,072
118.80.0.0/15	AS4837	China Unicom Shanxi province network	131,072
118.84.0.0/15	AS4809	CHINANET BACKBONE NETWORK	131,072
118.234.0.0/15	AS4766	Korea Telecom	131,072
118.86.0.0/15	AS4721	JCOM Co., Ltd.	131,072
118.124.0.0/15	AS4134	CHINANET Sichuan province network	131,072
118.148.0.0/15	AS9790	2degrees	131,072
118.136.0.0/15	AS23700	PT. Broadband Multimedia, Tbk	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

Read more

Pingable IPs

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

IP Address	ASN	Details
118.230.228.5	AS4538 China Education and Research Network Center	`7.00ms` 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
86.83.18.112	AS1136 KPN B.V.	`2.83ms` from Amsterdam, NL
139.171.137.32	AS7029 Windstream Communications LLC	`0.69ms` from Ashburn, US
110.136.188.0	AS7713 PT Telekomunikasi Indonesia	`11.78ms` from Batam, ID
41.140.210.128	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`5.49ms` from Casablanca, MA
99.13.72.0	AS7018 AT&T Enterprises, LLC	`9.15ms` from Chicago, US
185.54.120.160	AS5539 SpaceNet AG	`0.57ms` from Frankfurt am Main, DE
77.56.231.0	AS6730 Sunrise GmbH	`8.83ms` from Geneve, CH
47.99.146.192	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.24ms` from Hangzhou, CN
14.178.188.224	AS45899 VNPT Corp	`2.41ms` from Hanoi, VN
72.244.212.176	AS9304 HGC Global Communications Limited	`2.76ms` from Hong Kong, HK
180.252.237.160	AS7713 PT Telekomunikasi Indonesia	`2.18ms` from Jakarta, ID
88.27.1.48	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.31ms` from Madrid, ES
20.217.192.0	AS8075 Microsoft Corporation	`0.19ms` from Modiin Ilit, IL
5.228.25.96	AS42610 PJSC Rostelecom	`1.10ms` from Moscow, RU
3.111.72.208	AS16509 Amazon.com, Inc.	`0.13ms` from Mumbai, IN
88.188.230.128	AS12322 Free SAS	`5.51ms` from Paris, FR
179.67.86.192	AS7738 V tal	`3.31ms` from Rio de Janeiro, BR
131.163.105.240	AS8075 Microsoft Corporation	`1.82ms` from Sandefjord, NO
20.100.144.0	AS8075 Microsoft Corporation	`1.78ms` from Sandefjord, NO
134.199.219.112	AS14061 DigitalOcean, LLC	`0.31ms` from Santa Clara, US
167.234.251.32	AS31898 Oracle Corporation	`0.31ms` from Sao Paulo, BR
182.161.196.0	AS45361 Ulsan Jung-Ang Broadcasting Network	`7.59ms` from Seoul, KR
85.211.52.16	AS8075 Microsoft Corporation	`1.40ms` from Singapore, SG
5.101.115.128	AS198068 P.A.G.M. OU	`2.96ms` from Tallinn, EE
180.52.109.128	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.04ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m16 118.230.6.98

traceroute to 118.230.6.98 (118.230.6.98): 16 hops max, 52 byte packets

2 [] 156.146.32.150 297.795 ms

3 [AS1299] 62.115.191.201 0.484 ms

4 [AS1299] 62.115.118.106 1.024 ms

5 [AS1299] 62.115.143.29 21.999 ms

6 [AS1299] 62.115.124.59 38.941 ms

7 [AS1299] 62.115.137.137 174.132 ms

8 *

9 [AS1299] 80.239.130.173 214.243 ms

10 [AS4538] 101.4.114.181 250.508 ms

11 *

12 *

13 [AS4538] 101.4.114.226 253.721 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Stockholm, SE

On November 28th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales