183.168.0.0/18

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	183.168.0.0/15
Registry	APNIC
ID	WHR-CERNET

WHOIS Details

inetnum:        183.168.0.0 - 183.169.255.255
netname:        WHR-CERNET
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        DNS2.EDU.CN
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:  2020-09-03T09:16:18Z
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:          183.168.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-11-25T07:24:54Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 183.168.0.0/18

Range	ASN	Company	Num of IPs
183.168.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 183.168.0.0/16

Range	ASN	Company	Num of IPs
183.168.0.0/15	AS4538	China Education and Research Network	131,072

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
154.253.73.34	AS36947 Telecom Algeria	`12.08ms` from Algiers, DZ
154.57.171.2	AS49121 Infinity Telecom, s.r.o.	`0.43ms` from Amsterdam, NL
69.250.112.18	AS7922 Comcast Cable Communications, LLC	`8.29ms` from Ashburn, US
123.118.155.98	AS4808 China Unicom Beijing Province Network	`3.18ms` from Beijing, CN
24.176.51.18	AS20115 Charter Communications LLC	`9.32ms` from Chicago, US
172.0.232.50	AS7018 AT&T Enterprises, LLC	`13.13ms` from Chicago, US
213.61.23.2	AS8220 COLT Technology Services Group Limited	`0.69ms` from Frankfurt am Main, DE
199.96.129.130	AS19740 Sudjam, LLC	`0.32ms` from Los Angeles, US
13.121.66.34	AS36351 IBM Cloud	`0.59ms` from Madrid, ES
192.131.234.2	AS63396 9013-6573 Quebec inc.	`0.33ms` from Montreal, CA
193.204.189.178	AS137 Consortium GARR	`8.24ms` from Rome, IT
187.224.238.210	AS8151 UNINET	`3.92ms` from Santiago de Queretaro, MX
87.57.106.114	AS3292 TDC Holding A/S	`3.00ms` from Skanderborg, DK
126.21.59.18	AS17676 SoftBank Corp.	`3.44ms` from Tokyo, JP
202.239.194.194	AS2519 ARTERIA Networks Corporation	`3.56ms` from Tokyo, JP
73.227.27.242	AS7922 Comcast Cable Communications, LLC	`8.05ms` from Boston, US
87.193.134.50	AS20676 Plusnet GmbH	`0.98ms` from Duesseldorf, DE
31.54.226.98	AS2856 British Telecommunications PLC	`10.90ms` from Erith, GB
94.142.219.114	AS13247 Erdenreich Datentechnik GmbH	`5.63ms` from Frankfurt am Main, DE
41.175.140.98	AS30844 Liquid Telecommunications Ltd	`18.39ms` from Harare, ZW
188.32.222.2	AS42610 PJSC Rostelecom	`0.86ms` from Moscow, RU
70.111.199.34	AS701 Verizon Business	`2.63ms` from New York City, US
50.29.231.114	AS3737 PenTeleData Inc.	`11.15ms` from Secaucus, US
219.248.145.242	AS9318 SK Broadband Co Ltd	`3.84ms` from Seoul, KR
83.140.104.2	AS12552 GlobalConnect AB	`0.89ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 -f3 -m21 183.168.49.2

traceroute to 183.168.49.2 (183.168.49.2): 21 hops max, 52 byte packets

3 [AS9312] 103.193.131.76 6.837 ms

4 *

5 *

6 [] 36.255.56.131 0.711 ms

7 *

8 [] 69.194.166.38 0.882 ms

9 [] 203.144.99.18 1.513 ms

10 [AS4538] 101.4.114.181 36.51 ms

11 *

12 [AS4538] 101.4.117.173 35.69 ms

13 *

14 [AS4538] 101.4.112.66 53.127 ms

15 [AS4538] 101.4.118.214 53.839 ms

16 [AS4538] 101.4.114.18 54.281 ms

17 *

18 [AS4538] 202.112.21.37 53.296 ms

19 *

20 *

21 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On April 24th 2026

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