180.209.64.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	180.208.0.0/15
Registry	APNIC
ID	NJR-CERNET

WHOIS Details

inetnum:        180.208.0.0 - 180.209.255.255
netname:        NJR-CERNET
descr:          China Education and Research Network
descr:          Nanjing 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:  2020-09-03T09:16:17Z
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:          180.208.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-09-25T07:28:03Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 180.209.64.0/19

Range	ASN	Company	Num of IPs
180.208.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 180.209.0.0/16

Range	ASN	Company	Num of IPs
180.208.0.0/15	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

7,965 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
180.209.68.120	AS4538 China Education and Research Network Center	`9.33ms` from Shanghai, CN
180.209.73.50	AS4538 China Education and Research Network Center	`9.42ms` from Shanghai, CN
180.209.94.45	AS4538 China Education and Research Network Center	`9.38ms` from Shanghai, CN
180.209.90.33	AS4538 China Education and Research Network Center	`9.45ms` from Shanghai, CN
180.209.66.128	AS4538 China Education and Research Network Center	`9.35ms` from Shanghai, CN
180.209.82.188	AS4538 China Education and Research Network Center	`9.46ms` from Shanghai, CN
180.209.72.155	AS4538 China Education and Research Network Center	`9.33ms` from Shanghai, CN
180.209.85.76	AS4538 China Education and Research Network Center	`9.37ms` from Shanghai, CN
180.209.74.181	AS4538 China Education and Research Network Center	`9.27ms` from Shanghai, CN
180.209.81.206	AS4538 China Education and Research Network Center	`9.35ms` from Shanghai, CN
180.209.78.187	AS4538 China Education and Research Network Center	`9.31ms` from Shanghai, CN
180.209.87.202	AS4538 China Education and Research Network Center	`9.38ms` from Shanghai, CN
180.209.86.122	AS4538 China Education and Research Network Center	`9.37ms` from Shanghai, CN
180.209.76.111	AS4538 China Education and Research Network Center	`9.42ms` from Shanghai, CN
180.209.91.46	AS4538 China Education and Research Network Center	`9.34ms` from Shanghai, CN
180.209.83.194	AS4538 China Education and Research Network Center	`9.38ms` from Shanghai, CN
180.209.64.47	AS4538 China Education and Research Network Center	`9.88ms` from Shanghai, CN
180.209.95.73	AS4538 China Education and Research Network Center	`9.65ms` from Shanghai, CN
180.209.84.48	AS4538 China Education and Research Network Center	`9.35ms` from Shanghai, CN
180.209.67.29	AS4538 China Education and Research Network Center	`9.35ms` from Shanghai, CN
180.209.88.212	AS4538 China Education and Research Network Center	`9.36ms` from Shanghai, CN
180.209.77.190	AS4538 China Education and Research Network Center	`9.37ms` from Shanghai, CN
180.209.80.24	AS4538 China Education and Research Network Center	`9.31ms` from Shanghai, CN
180.209.92.171	AS4538 China Education and Research Network Center	`9.39ms` from Shanghai, CN
180.209.75.18	AS4538 China Education and Research Network Center	`9.32ms` 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
2.51.216.243	AS5384 Emirates Internet	`4.89ms` from Al Fujairah City, AE
173.80.121.83	AS19108 Optimum	`14.29ms` from Ashburn, US
125.34.86.67	AS4808 China Unicom Beijing Province Network	`3.43ms` from Beijing, CN
3.78.151.195	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE
14.71.71.51	AS4766 Korea Telecom	`1.64ms` from Incheon, KR
153.212.135.67	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.28ms` from Osaka, JP
17.253.74.83	AS6185 Apple Inc.	`0.29ms` from Osaka, JP
125.4.70.243	AS9617 JCOM Co., Ltd.	`15.83ms` from Osaka, JP
3.88.169.227	AS14618 Amazon.com, Inc.	`0.44ms` from Reston, US
100.30.135.67	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
52.123.24.3	AS8075 Microsoft Corporation	`0.36ms` from Saint Thomas Mount, IN
201.49.80.147	AS28263 VERO S.A	`9.27ms` from Sao Paulo, BR
115.9.10.83	AS4766 Korea Telecom	`6.52ms` from Seoul, KR
211.196.252.163	AS4766 Korea Telecom	`0.84ms` from Seoul, KR
219.62.73.83	AS17676 SoftBank Corp.	`3.04ms` from Tokyo, JP
106.179.181.131	AS2516 KDDI CORPORATION	`1.04ms` from Tokyo, JP
111.96.155.195	AS2516 KDDI CORPORATION	`0.93ms` from Tokyo, JP
223.76.243.195	AS9808 China Mobile Communications Group Co., Ltd.	`3.63ms` from Wuhan, CN
79.142.63.3	AS43994 SMARTNET TOO	`1.85ms` from Astana, KZ
23.245.195.99	AS11776 Breezeline	`12.80ms` from Chicago, US
112.6.42.147	AS24444 Shandong Mobile Communication Company Limited	`6.08ms` from Jinan, CN
212.13.236.131	AS9119 SOFTNET d.o.o.	`0.89ms` from Ljubljana, SI
62.216.74.195	AS212238 Datacamp Limited	`0.27ms` from London, GB
91.241.201.19	AS50780 EAST-NET Ltd	`17.16ms` from Moscow, RU
121.42.65.19	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.33ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f4 180.209.95.90

traceroute to 180.209.95.90 (180.209.95.90): 64 hops max, 52 byte packets

4 [AS749] 11.94.199.253 2.754 ms

5 *

6 *

7 *

8 *

9 *

10 [AS4538] 101.4.116.97 10.862 ms

11 [AS4538] 219.219.156.37 10.161 ms

12 *

13 *

14 *

15 *

16 [AS4538] 180.209.95.90 9.931 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On March 29th 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.

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