59.66.0.0/16

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	59.64.0.0/14
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        59.64.0.0 - 59.67.255.255
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:20Z
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

Overlapping Ranges

BGP prefixes that contain 59.66.0.0/16

Range	ASN	Company	Num of IPs
59.64.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 59.0.0.0/8

Range	ASN	Company	Num of IPs
59.0.0.0/11	AS152232	Korea Telecom	2,097,152
59.0.0.0/11	AS23587	Korea Telecom	2,097,152
59.0.0.0/11	AS131093	Korea Telecom	2,097,152
59.0.0.0/11	AS4766	Korea Telecom	2,097,152
59.0.0.0/11	AS23555	Korea Telecom	2,097,152
59.0.0.0/11	AS9318	Korea Telecom	2,097,152
59.52.0.0/14	AS58777	CHINANET Jiangxi province network	262,144
59.52.0.0/14	AS139201	CHINANET Jiangxi province network	262,144
59.52.0.0/14	AS134238	CHINANET Jiangxi province network	262,144
59.44.0.0/14	AS134762	CHINANET liaoning province network	262,144
59.52.0.0/14	AS4134	CHINANET Jiangxi province network	262,144
59.44.0.0/14	AS137688	CHINANET liaoning province network	262,144
59.44.0.0/14	AS4809	CHINANET liaoning province network	262,144
59.44.0.0/14	AS4134	CHINANET liaoning province network	262,144
59.64.0.0/14	AS4538	China Education and Research Network	262,144
59.148.0.0/15	AS10103	Hong Kong Broadband Network Ltd	131,072
59.186.0.0/15	AS3786	LG DACOM Corporation	131,072
59.186.0.0/15	AS23584	LG DACOM Corporation	131,072
59.62.0.0/15	AS4134	CHINANET Jiangxi province network	131,072
59.146.0.0/15	AS2527	Sony Network Communications Inc.	131,072
59.62.0.0/15	AS134238	CHINANET Jiangxi province network	131,072
59.144.0.0/15	AS9498	BHARTI INFOTEL LTD.	131,072
59.158.0.0/15	AS17506	ARTERIA Networks Corporation	131,072
59.144.0.0/15	AS24560	BHARTI INFOTEL LTD.	131,072
59.100.0.0/15	AS2764	AAPT Limited	131,072
59.104.0.0/15	AS4780	Digital United I	131,072
59.148.0.0/15	AS9269	Hong Kong Broadband Network Ltd	131,072
59.188.0.0/16	AS9269	HKBN Enterprise Solutions Limited	65,536
59.166.0.0/16	AS9824	JCOM Co., Ltd.	65,536
59.127.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.122.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.103.0.0/16	AS17557	Pakistan Telecommunication Company Limited	65,536
59.123.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.126.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.116.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.117.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.190.0.0/16	AS17511	OPTAGE Inc.	65,536
59.121.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.154.0.0/16	AS7474	SingTel Optus Pty Ltd	65,536
59.112.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.113.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.167.0.0/16	AS4739	iiNet Limited	65,536
59.115.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.114.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
59.110.0.0/16	AS37963	Aliyun Computing Co., LTD	65,536
59.189.0.0/16	AS140928	StarHub Cable Vision Ltd Singapore Broadband Access Provider	65,536
59.188.0.0/16	AS17444	HKBN Enterprise Solutions Limited	65,536
59.87.0.0/16	AS17506	ARTERIA Networks Corporation	65,536
59.51.0.0/17	AS4134	CHINANET Hunan province network	32,768
59.80.0.0/17	AS134542	CHINA UNICOM CLOUD DATA COMPANY LIMITED	32,768

Hosted domains

There are 20 domain names hosted across 20 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

4,800 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
59.66.3.33	AS4538 China Education and Research Network Center	`3.43ms` from Beijing, CN
59.66.201.34	AS4538 China Education and Research Network Center	`3.38ms` from Beijing, CN
59.66.13.248	AS4538 China Education and Research Network Center	`3.40ms` from Beijing, CN
59.66.153.36	AS4538 China Education and Research Network Center	`3.12ms` from Beijing, CN
59.66.204.38	AS4538 China Education and Research Network Center	`2.46ms` from Beijing, CN
59.66.234.1	AS4538 China Education and Research Network Center	`2.40ms` from Beijing, CN
59.66.9.216	AS4538 China Education and Research Network Center	`3.51ms` from Beijing, CN
59.66.136.2	AS4538 China Education and Research Network Center	`2.24ms` from Beijing, CN
59.66.84.62	AS4538 China Education and Research Network Center	`2.55ms` from Beijing, CN
59.66.245.22	AS4538 China Education and Research Network Center	`3.67ms` from Beijing, CN
59.66.30.141	AS4538 China Education and Research Network Center	`3.56ms` from Beijing, CN
59.66.144.1	AS4538 China Education and Research Network Center	`3.91ms` from Beijing, CN
59.66.52.1	AS4538 China Education and Research Network Center	`3.18ms` from Beijing, CN
59.66.16.177	AS4538 China Education and Research Network Center	`3.26ms` from Beijing, CN
59.66.26.176	AS4538 China Education and Research Network Center	`3.32ms` from Beijing, CN
59.66.179.1	AS4538 China Education and Research Network Center	`3.25ms` from Beijing, CN
59.66.178.1	AS4538 China Education and Research Network Center	`3.30ms` from Beijing, CN
59.66.191.1	AS4538 China Education and Research Network Center	`3.81ms` from Beijing, CN
59.66.114.149	AS4538 China Education and Research Network Center	`3.12ms` from Beijing, CN
59.66.145.1	AS4538 China Education and Research Network Center	`3.80ms` from Tianjin, CN
59.66.157.1	AS4538 China Education and Research Network Center	`3.85ms` from Tianjin, CN
59.66.39.188	AS4538 China Education and Research Network Center	`5.64ms` from Tianjin, CN
59.66.185.1	AS4538 China Education and Research Network Center	`2.75ms` from Tianjin, CN
59.66.133.1	AS4538 China Education and Research Network Center	`3.28ms` from Beijing, CN
59.66.8.158	AS4538 China Education and Research Network Center	`2.59ms` 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
52.16.106.192	AS16509 Amazon.com, Inc.	`0.25ms` from Dublin, IE
192.144.33.32	AS214851 All2U services s.r.o.	`0.07ms` from Gravelines, FR
180.249.132.0	AS7713 PT Telekomunikasi Indonesia	`16.78ms` from Jakarta, ID
92.16.112.16	AS13285 TalkTalk Communications Limited	`5.47ms` from Manchester, GB
116.72.60.128	AS17488 Hathway IP Over Cable Internet	`8.96ms` from Mumbai, IN
179.219.105.208	AS28573 Claro NXT Telecomunicacoes Ltda	`4.62ms` from Porto Alegre, BR
119.179.201.32	AS4837 CHINA UNICOM China169 Backbone	`7.24ms` from Qingdao, CN
46.147.216.112	AS57378 JSC "ER-Telecom Holding"	`19.23ms` from Samara, RU
119.77.102.48	AS38673 Korea Cable TV Kwangju Broadcasting	`6.25ms` from Seoul, KR
84.87.208.112	AS1136 KPN B.V.	`3.02ms` from Amsterdam, NL
79.247.170.160	AS3320 Deutsche Telekom AG	`4.71ms` from Hamburg, DE
104.33.109.80	AS20001 Charter Communications Inc	`4.50ms` from Los Angeles, US
154.41.128.128	AS174 Cogent Communications, LLC	`5.42ms` from Marseille, FR
71.93.15.112	AS20115 Charter Communications LLC	`15.15ms` from Portland, US
112.254.182.208	AS4837 CHINA UNICOM China169 Backbone	`0.88ms` from Qingdao, CN
20.59.0.192	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
79.57.255.240	AS3269 Telecom Italia S.p.A.	`2.69ms` from Rome, IT
47.89.231.144	AS45102 Alibaba (US) Technology Co., Ltd.	`0.41ms` from Santa Clara, US
184.14.23.0	AS5650 Frontier Communications of America, Inc.	`19.49ms` from Chicago, US
47.91.227.96	AS45102 Alibaba (US) Technology Co., Ltd.	`1.25ms` from Hong Kong, HK
211.178.129.128	AS9318 SK Broadband Co Ltd	`1.57ms` from Incheon, KR
79.28.219.0	AS3269 Telecom Italia S.p.A.	`1.91ms` from Milan, IT
110.13.21.32	AS9318 SK Broadband Co Ltd	`7.25ms` from Seoul, KR
137.83.90.16	AS32473 Eh!Tel Networks Inc.	`3.28ms` from Toronto, CA
196.187.123.80	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`17.64ms` from Tunis, TN

Traceroute

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

traceroute -a -n -q1 -f3 59.66.221.126

traceroute to 59.66.221.126 (59.66.221.126): 64 hops max, 52 byte packets

3 [AS749] 11.62.82.170 0.889 ms

4 [AS749] 11.62.83.153 0.733 ms

5 *

6 [AS141679] 106.63.0.169 1.164 ms

7 [AS141679] 106.63.121.113 7.622 ms

8 *

9 *

10 *

11 [AS4538] 101.4.118.25 6.681 ms

12 *

13 [AS4538] 202.112.38.142 3.525 ms

14 [AS4538] 118.229.4.74 4.168 ms

15 *

16 [AS4538] 59.66.221.126 26.811 ms

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

On January 30th 2026

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