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Summary

Country	China
Domain	chinaunicom.cn
ASN	AS136958
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 2408:8459:640::/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

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

IP Address	ASN	Details
2408:8459:640:6bb4:5814:565:d60b:6460	AS136958 China Unicom Guangdong IP network	`15.36ms` from Shenzhen, CN
2408:8459:641:9ad2:ddca:d311:ad0e:a720	AS136958 China Unicom Guangdong IP network	`30.87ms` from Hong Kong, HK

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
73.218.224.204	AS7922 Comcast Cable Communications, LLC	`7.17ms` from Boston, US
4.231.169.220	AS8075 Microsoft Corporation	`0.20ms` from Dublin, IE
187.139.126.12	AS8151 UNINET	`5.90ms` from Guadalajara, MX
190.11.75.28	AS27839 Comteco Ltda	`5.05ms` from La Paz, BO
47.194.31.92	AS5650 Frontier Communications of America, Inc.	`5.34ms` from Miami, US
71.206.110.252	AS7922 Comcast Cable Communications, LLC	`11.14ms` from Murfreesboro, US
40.64.110.60	AS8075 Microsoft Corporation	`0.16ms` from Quincy, US
45.201.248.220	AS54801 Zillion Network Inc.	`0.57ms` from San Jose, US
221.152.214.172	AS4766 Korea Telecom	`8.27ms` from Seoul, KR
179.183.220.92	AS18881 TELEFÔNICA BRASIL S.A	`6.95ms` from São Paulo, BR
114.178.51.76	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.37ms` from Tokyo, JP
77.174.165.28	AS1136 KPN B.V.	`1.47ms` from Amsterdam, NL
27.15.51.236	AS4837 CHINA UNICOM China169 Backbone	`3.41ms` from Chongqing, CN
76.177.206.140	AS10796 Charter Communications Inc	`10.74ms` from Columbus, US
119.226.5.44	AS9583 Sify Limited	`0.78ms` from Indore, IN
178.89.15.172	AS9198 JSC Kazakhtelecom	`4.70ms` from Karagandy, KZ
15.222.171.156	AS16509 Amazon.com, Inc.	`0.11ms` from Montreal, CA
3.91.178.172	AS14618 Amazon.com, Inc.	`0.37ms` from Reston, US
187.234.102.236	AS8151 UNINET	`5.13ms` from Santiago de Queretaro, MX
184.61.61.108	AS4181 TDS TELECOM	`14.37ms` from Seattle, US
74.37.9.44	AS5650 Frontier Communications of America, Inc.	`7.63ms` from Secaucus, US
218.152.103.236	AS4766 Korea Telecom	`1.36ms` from Seoul, KR
217.198.74.220	AS48220 Fouredge AB	`0.60ms` from Stockholm, SE
36.231.10.12	AS3462 Data Communication Business Group	`1.13ms` from Taipei, TW
96.32.44.12	AS20115 Charter Communications LLC	`11.80ms` from Ashburn, 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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