202.198.88.0/21

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.192.0.0/13
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        202.192.0.0 - 202.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          SY Region
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
remarks:        hostmaster@apnic.net 960130
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2021-10-30T08:29:34Z
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
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

Overlapping Ranges

BGP prefixes that contain 202.198.88.0/21

Range	ASN	Company	Num of IPs
202.192.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 202.198.0.0/16

Range	ASN	Company	Num of IPs
202.192.0.0/13	AS4538	China Education and Research Network	524,288

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
202.198.94.0	AS4538 China Education and Research Network Center	`11.54ms` from Dalian, 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
99.124.216.165	AS7018 AT&T Enterprises, LLC	`7.93ms` from Atlanta, US
184.67.186.37	AS6327 Shaw Communications	`7.29ms` from Edmonton, CA
70.167.143.69	AS22773 Cox Communications Inc.	`2.60ms` from Phoenix, US
218.242.52.197	AS9812 Oriental Cable Network Co., Ltd.	`1.81ms` from Shanghai, CN
113.238.52.21	AS4837 CHINA UNICOM China169 Backbone	`10.46ms` from Tieling, CN
105.100.58.181	AS36947 Telecom Algeria	`9.42ms` from Valencia, ES
86.86.37.165	AS1136 KPN B.V.	`1.31ms` from Amsterdam, NL
132.220.22.245	AS8075 Microsoft Corporation	`0.31ms` from Amsterdam, NL
149.52.90.213	AS55201 SkyQuantum Internet Service	`0.34ms` from Fremont, US
187.73.49.245	AS262668 Mar Provedor de Internet Ltda	`17.30ms` from Joao Pessoa, BR
179.59.187.149	AS28024 Nuevatel PCS de Bolivia S.A.	`11.43ms` from La Paz, BO
90.39.238.37	AS3215 Orange S.A.	`6.94ms` from Marseille, FR
99.119.207.149	AS7018 AT&T Enterprises, LLC	`8.33ms` from Miami, US
101.59.3.101	AS210278 Sky Italia srl	`6.42ms` from Milan, IT
97.127.12.213	AS209 CenturyLink Communications, LLC	`2.24ms` from Minneapolis, US
109.188.74.53	AS25159 PJSC MegaFon	`1.72ms` from Moscow, RU
124.112.240.53	AS4134 CHINANET-BACKBONE	`9.57ms` from Nanchang, CN
180.100.132.37	AS4134 CHINANET-BACKBONE	`4.13ms` from Nanjing, CN
74.108.95.117	AS701 Verizon Business	`2.77ms` from New York City, US
76.100.16.197	AS7922 Comcast Cable Communications, LLC	`7.45ms` from Reston, US
157.131.149.37	AS46375 Sonic Telecom LLC	`1.77ms` from San Jose, US
184.67.108.5	AS6327 Shaw Communications	`3.24ms` from Seattle, US
58.38.107.21	AS4812 China Telecom (Group)	`3.93ms` from Shanghai, CN
27.93.143.21	AS2516 KDDI CORPORATION	`0.98ms` from Tokyo, JP
220.99.159.21	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.74ms` 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 -f3 -m17 202.198.89.143

traceroute to 202.198.89.143 (202.198.89.143): 17 hops max, 52 byte packets

3 [AS29357] 217.69.180.72 158.059 ms

4 *

5 [AS8966] 5.195.70.162 55.823 ms

6 *

7 [] 123.255.91.118 204.49 ms

8 [AS4538] 101.4.114.181 297.018 ms

9 *

10 *

11 [AS4538] 101.4.112.82 242.479 ms

12 *

13 [AS4538] 101.4.117.86 293.966 ms

14 [AS4538] 101.4.116.46 317.981 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Kuwait City, KW

On March 20th 2026

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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