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Summary

Country	China
Domain	chinaunicom.cn
ASN	AS17623
Registry	APNIC
ID	CU-CN

WHOIS Details

inet6num:       2408:8000::/20
netname:        CU-CN
descr:          China Unicom
descr:          No.21, Jin-Rong Street
descr:          Beijng 100033
country:        CN
admin-c:        CH1302-AP
tech-c:         CH1302-AP
abuse-c:        AC1718-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-CNCGROUP
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:39:56Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-10-17
mnt-by:         MAINT-CNCGROUP
last-modified:  2025-11-18T00:26:20Z
source:         APNIC

role:           ABUSE CUCN
country:        ZZ
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
phone:          +000000000
e-mail:         [email protected]
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        [email protected] was validated on 2025-10-17
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         [email protected]
address:        No.21,Jin-Rong Street
address:        Beijing,100033
address:        P.R.China
phone:          +86-10-66259764
fax-no:         +86-10-66259764
country:        CN
mnt-by:         MAINT-CNCGROUP
last-modified:  2017-08-17T06:13:16Z
source:         APNIC

route6:         2408:8000::/20
descr:          China Unicom IPv6 Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2018-01-18T02:14:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 2408:8459:2e20::/44

No nearby ranges found.

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

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

IP Address	ASN	Details
2408:8459:2e21:3d63:383d:7215:88ff:8490	AS17623 China Unicom Shenzen network	`20.75ms` from Shenzhen, CN
2408:8459:2e20:6c3b:b86e:bed2:4f3a:3c04	AS17623 China Unicom Shenzen network	`17.59ms` from Shenzhen, 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
188.95.51.188	AS49453 Global Layer B.V.	`0.44ms` from Amsterdam, NL
221.194.222.220	AS4837 CHINA UNICOM China169 Backbone	`11.41ms` from Beijing, CN
44.235.67.156	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
113.244.154.156	AS4134 CHINANET-BACKBONE	`3.31ms` from Changsha, CN
220.247.237.188	AS9329 Sri Lanka Telecom Internet	`3.06ms` from Colombo, LK
71.205.33.108	AS7922 Comcast Cable Communications, LLC	`6.42ms` from Denver, US
73.128.118.188	AS7922 Comcast Cable Communications, LLC	`6.91ms` from Herndon, US
113.183.184.172	AS45899 VNPT Corp	`3.89ms` from Ho Chi Minh City, VN
47.152.59.44	AS5650 Frontier Communications of America, Inc.	`3.96ms` from Los Angeles, US
86.211.66.204	AS3215 Orange S.A.	`3.98ms` from Marseille, FR
67.68.22.220	AS577 Bell Canada	`4.11ms` from Montreal, CA
179.82.39.172	AS26599 TELEFÔNICA BRASIL S.A	`7.28ms` from Osasco, BR
186.235.10.76	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`6.45ms` from Osasco, BR
176.185.240.156	AS5410 Bouygues Telecom SA	`1.23ms` from Paris, FR
181.196.18.12	AS28006 CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP	`0.59ms` from Quito, EC
196.51.35.140	AS400463 DynaNode LLC	`0.62ms` from Seattle, US
14.49.91.188	AS4766 Korea Telecom	`6.13ms` from Seoul, KR
100.6.42.204	AS701 Verizon Business	`6.45ms` from Ashburn, US
4.156.90.252	AS8075 Microsoft Corporation	`0.57ms` from Ashburn, US
87.178.10.12	AS3320 Deutsche Telekom AG	`6.34ms` from Duesseldorf, DE
4.182.153.188	AS8075 Microsoft Corporation	`0.30ms` from Frankfurt am Main, DE
109.195.76.252	AS50544 JSC ER-Telecom Holding	`1.31ms` from Krasnoyarsk, RU
66.175.237.44	AS8560 IONOS SE	`0.26ms` from Lenexa, US
144.195.184.44	AS30103 Zoom Video Communications, Inc	`0.71ms` from San Jose, US
70.78.190.204	AS6327 Shaw Communications	`16.90ms` from Seattle, US

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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