123.121.0.0/20

AS4808  ·  China Unicom Beijing Province Network

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Summary

Country China
Domain chinaunicom.cn
ASN AS4808
Registry APNIC
ID UNICOM-BJ

WHOIS Details

inetnum:        123.112.0.0 - 123.127.255.255
netname:        UNICOM-BJ
descr:          China Unicom Beijing province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         SY21-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-BJ
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2021-08-19T08:46:21Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         zhaoyz3@chinaunicom.cn
abuse-mailbox:  zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        zhaoyz3@chinaunicom.cn 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:         zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
abuse-mailbox:  zhaoyz3@chinaunicom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
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

person:         sun ying
address:        fu xing men nei da jie 97, Xicheng District
address:        Beijing 100800
country:        CN
phone:          +86-10-66030657
fax-no:         +86-10-66078815
e-mail:         hostmast@publicf.bta.net.cn
nic-hdl:        SY21-AP
mnt-by:         MAINT-CNCGROUP-BJ
last-modified:  2009-06-30T08:42:48Z
source:         APNIC

route:          123.112.0.0/12
descr:          China Unicom Beijing Province Network
country:        CN
origin:         AS4808
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2016-05-20T01:24:03Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.121.0.0/16

No nearby ranges found.

Hosted domains

There are 45 domain names hosted across 40 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
123.121.7.228 linseryer.vip 3
123.121.9.198 chaselbb.cn 1
123.121.14.151 wlbserver.cn 1
123.121.13.105 bravelee.work 1
123.121.0.75 bluestation.com.cn 1
123.121.1.58 leyi.hi.cn 1
123.121.6.84 mmd.ink 1
123.121.6.196 zhangrongkang1991.top 1
123.121.2.97 nasok.icu 1
123.121.10.96 tongyao.space 1
123.121.9.185 lizhiqiangnas.vip 1
123.121.3.158 wjiqunbj.xyz 1

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

Pingable IPs

1,763 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
123.121.0.245 AS4808 China Unicom Beijing Province Network 3.54ms from Beijing, CN
123.121.6.247 AS4808 China Unicom Beijing Province Network 3.52ms from Beijing, CN
123.121.10.34 AS4808 China Unicom Beijing Province Network 3.56ms from Beijing, CN
123.121.3.68 AS4808 China Unicom Beijing Province Network 3.34ms from Beijing, CN
123.121.15.227 AS4808 China Unicom Beijing Province Network 3.26ms from Beijing, CN
123.121.1.139 AS4808 China Unicom Beijing Province Network 3.32ms from Beijing, CN
123.121.7.156 AS4808 China Unicom Beijing Province Network 3.58ms from Beijing, CN
123.121.12.205 AS4808 China Unicom Beijing Province Network 3.41ms from Beijing, CN
123.121.4.23 AS4808 China Unicom Beijing Province Network 3.58ms from Beijing, CN
123.121.11.234 AS4808 China Unicom Beijing Province Network 3.35ms from Beijing, CN
123.121.8.138 AS4808 China Unicom Beijing Province Network 3.71ms from Beijing, CN
123.121.2.166 AS4808 China Unicom Beijing Province Network 3.46ms from Beijing, CN
123.121.5.196 AS4808 China Unicom Beijing Province Network 3.59ms from Beijing, CN
123.121.9.236 AS4808 China Unicom Beijing Province Network 3.67ms from Beijing, CN
123.121.14.48 AS4808 China Unicom Beijing Province Network 3.50ms from Beijing, CN
123.121.13.49 AS4808 China Unicom Beijing Province Network 3.69ms 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
20.221.76.212 AS8075 Microsoft Corporation 0.82ms from Des Moines, US
83.53.176.52 AS3352 TELEFONICA DE ESPANA S.A.U. 8.37ms from Madrid, ES
81.178.146.164 AS13285 TalkTalk Communications Limited 1.87ms from Manchester, GB
182.164.141.132 AS17511 OPTAGE Inc. 2.29ms from Osaka, JP
193.248.241.132 AS3215 Orange S.A. 1.67ms from Paris, FR
176.148.31.164 AS5410 Bouygues Telecom SA 2.74ms from Paris, FR
4.178.168.164 AS8075 Microsoft Corporation 0.16ms from Paris, FR
98.115.14.52 AS701 Verizon Business 1.44ms from Philadelphia, US
178.86.183.52 AS25019 Saudi Telecom Company JSC 3.78ms from Riyadh, SA
4.144.161.180 AS8075 Microsoft Corporation 0.49ms from Singapore, SG
62.164.164.164 AS16509 Amazon.com, Inc. 0.14ms from Tokyo, JP
171.80.2.116 AS151185 China Telecom 5.30ms from Wuhan, CN
221.193.251.4 AS4837 CHINA UNICOM China169 Backbone 10.92ms from Beijing, CN
84.170.196.4 AS3320 Deutsche Telekom AG 3.83ms from Berlin, DE
196.131.148.4 AS24835 Vodafone Data 14.37ms from Cairo, EG
12.53.29.20 AS27482 American Eagle Computer Products, Inc. 2.26ms from Chicago, US
65.36.35.148 AS7459 Grande Communications Networks, LLC 3.28ms from Dallas, US
185.51.195.228 AS39855 Mod Mission Critical LLC 0.20ms from London, GB
137.110.116.196 AS7377 University of California, San Diego 2.69ms from Los Angeles, US
178.81.213.52 AS35819 Etihad Etisalat, a joint stock company 3.76ms from Manama, BH
124.217.44.84 AS9299 Philippine Long Distance Telephone Company 4.41ms from Manila, PH
120.147.147.100 AS1221 Telstra Limited 1.73ms from Melbourne, AU
97.163.137.52 AS6167 Verizon Business 15.27ms from Miami, US
34.98.193.164 AS396982 Google LLC 2.12ms from Mumbai, IN
112.68.206.68 AS17511 OPTAGE Inc. 1.64ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f5 123.121.2.57
traceroute to 123.121.2.57 (123.121.2.57): 64 hops max, 52 byte packets
5 [AS4837] 219.158.13.137 231.632 ms
6 *
7 *
8 *
9 [AS4808] 221.223.117.2 232.122 ms
10 [AS4808] 123.121.2.57 240.546 ms
Measurement taken from IPinfo ProbeNet in Lagos, NG
On

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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