210.72.148.0/23

AS7497 · Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country	China
Domain	cnic.cn
ASN	AS7497
Parent Range	210.72.128.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.72.128.0 - 210.72.159.255
netname:        CSTNET-CN
descr:          Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
country:        CN
org:            ORG-CA107-AP
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
abuse-c:        AC2741-AP
status:         ALLOCATED PORTABLE
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-CSTNET-CN
mnt-routes:     MAINT-CSTNET-CN
mnt-irt:        IRT-CSTNET-CN
last-modified:  2023-10-09T05:58:10Z
source:         APNIC

irt:            IRT-CSTNET-CN
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail:         abuse-ip@cstnet.cn
abuse-mailbox:  abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        abuse-ip@cstnet.cn was validated on 2025-07-25
mnt-by:         MAINT-CSTNET-CN
last-modified:  2025-11-18T00:35:26Z
source:         APNIC

organisation:   ORG-CA107-AP
org-name:       CNIC-CAS
org-type:       LIR
country:        CN
address:        2 Dongsheng South Road, Haidian District
phone:          +86.10.58812266
e-mail:         support@cnic.cn
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:50Z
source:         APNIC

role:           ABUSE CSTNETCN
country:        ZZ
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
phone:          +000000000
e-mail:         abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        abuse-ip@cstnet.cn was validated on 2025-07-25
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-25T01:16:46Z
source:         APNIC

role:           Computer Network Information Center of Chinese Academy of Sciences administrator
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
country:        CN
phone:          +86.10.58812266
e-mail:         supervise@cnic.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        CNIC1-AP
mnt-by:         MAINT-CNICOCAOS-CN
last-modified:  2022-05-12T07:31:01Z
source:         APNIC

route:          210.72.128.0/19
descr:          Route origin from CSTNET
country:        CN
origin:         AS7497
remarks:        Please contact lihong@cstnet.cn if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to antispam@cstnet.cn.
notify:         lihong@cstnet.cn
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.72.148.0/23

Range	ASN	Company	Num of IPs
210.72.128.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.72.0.0/16

Range	ASN	Company	Num of IPs
210.72.0.0/17	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	32,768
210.72.160.0/19	AS4808	China Internet Network Information Center	8,192
210.72.192.0/19	AS4808	Communication Center, China Aerospace	8,192
210.72.128.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

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

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

IP Address	ASN	Details
210.72.149.6	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`21.70ms` from Tianjin, CN
210.72.148.62	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`22.72ms` 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
49.49.183.167	AS45758 Triple T Broadband Public Company Limited	`3.46ms` from Bangkok, TH
20.141.144.103	AS8070 Microsoft Corporation	`0.58ms` from Boydton, US
78.20.188.167	AS6848 Telenet BV	`8.63ms` from Brussels, BE
27.38.221.87	AS17623 China Unicom Shenzen network	`3.65ms` from Guangzhou, CN
117.3.199.39	AS7552 Viettel Group	`18.29ms` from Ho Chi Minh City, VN
41.147.203.247	AS37457 Telkom SA Ltd.	`1.27ms` from Johannesburg, ZA
83.105.201.199	AS5378 Vodafone Limited	`6.58ms` from London, GB
47.140.147.39	AS5650 Frontier Communications of America, Inc.	`10.79ms` from Los Angeles, US
90.94.203.71	AS12479 Orange Espagne SA	`10.20ms` from Madrid, ES
75.206.40.7	AS6167 Verizon Business	`15.93ms` from Miami, US
61.197.4.71	AS2514 NTT PC Communications, Inc.	`2.35ms` from Osaka, JP
180.63.55.135	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.86ms` from Osaka, JP
159.213.138.23	AS6882 Regione Toscana	`7.61ms` from Rome, IT
189.147.133.199	AS8151 UNINET	`3.81ms` from Santiago de Queretaro, MX
125.158.215.135	AS4766 Korea Telecom	`1.91ms` from Seoul, KR
104.69.153.247	AS16625 Akamai Technologies, Inc.	`0.29ms` from Singapore, SG
128.76.185.119	AS3292 TDC Holding A/S	`2.26ms` from Tønder, DK
90.138.111.39	AS1257 Tele2 Sverige AB	`17.87ms` from Vilnius, LT
85.28.130.215	AS60806 "ZICOM NEXT" SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA	`6.84ms` from Warsaw, PL
44.233.251.215	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
108.49.122.39	AS701 Verizon Business	`1.71ms` from Boston, US
222.211.85.55	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.57ms` from Chengdu, CN
91.249.26.87	AS9145 EWE TEL GmbH	`3.58ms` from Hamburg, DE
18.166.89.215	AS16509 Amazon.com, Inc.	`0.12ms` from Hong Kong, HK
74.225.204.55	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN

Traceroute

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

traceroute -a -n -q1 -f8 210.72.148.88

traceroute to 210.72.148.88 (210.72.148.88): 64 hops max, 52 byte packets

8 [AS7497] 103.2.211.132 7.096 ms

9 [AS7497] 159.226.254.85 5.642 ms

10 [AS7497] 159.226.254.142 6.127 ms

11 [AS7497] 159.226.253.186 23.983 ms

12 *

13 [AS7497] 210.72.148.88 26.45 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On December 6th 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.

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