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Summary

Country	China
Domain	chinaunicom.cn
ASN	AS17621
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 2408:8026:3f0::/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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
60.225.215.172	AS1221 Telstra Limited	`4.01ms` from Adelaide, AU
173.69.208.172	AS701 Verizon Business	`5.16ms` from Ashburn, US
204.0.201.252	AS7029 Windstream Communications LLC	`0.95ms` from Ashburn, US
197.52.16.252	AS8452 TE-AS	`3.53ms` from Cairo, EG
72.3.29.188	AS6325 Illinois Century Network	`5.32ms` from Chicago, US
3.68.100.76	AS16509 Amazon.com, Inc.	`0.26ms` from Frankfurt am Main, DE
80.228.133.236	AS9145 EWE TEL GmbH	`7.78ms` from Hamburg, DE
5.225.242.140	AS12430 VODAFONE ESPANA S.A.U.	`14.07ms` from Madrid, ES
76.157.219.140	AS7922 Comcast Cable Communications, LLC	`5.59ms` from Chicago, US
218.66.176.252	AS4134 CHINANET-BACKBONE	`5.47ms` from Fuzhou, CN
134.249.227.252	AS15895 "Kyivstar" PJSC	`8.37ms` from Kyiv, UA
86.105.7.124	AS201341 trafficforce, UAB	`0.36ms` from London, GB
95.144.121.92	AS2856 British Telecommunications PLC	`2.39ms` from London, GB
213.98.133.188	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.75ms` from Madrid, ES
73.197.103.44	AS7922 Comcast Cable Communications, LLC	`8.84ms` from New York City, US
66.39.45.92	AS7859 pair Networks	`0.14ms` from Pittsburgh, US
38.33.26.220	AS54600 PEG TECH INC	`0.69ms` from San Jose, US
112.167.43.60	AS4766 Korea Telecom	`2.65ms` from Seoul, KR
52.206.187.252	AS14618 Amazon.com, Inc.	`0.57ms` from Ashburn, US
107.131.142.92	AS7018 AT&T Enterprises, LLC	`11.73ms` from Atlanta, US
101.73.3.60	AS4837 CHINA UNICOM China169 Backbone	`7.37ms` from Beijing, CN
54.200.183.60	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
96.109.68.204	AS7922 Comcast Cable Communications, LLC	`7.45ms` from Chicago, US
81.233.36.172	AS3301 Telia Company AB	`3.26ms` from Copenhagen, DK
79.137.59.172	AS16276 OVH SAS	`0.06ms` from Gravelines, FR

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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