1. All IP Ranges
  2. 123.0.0.0/8
  3. AS4837  | 123.128.0.0/13

123.128.0.0/13

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

Country China
Domain chinaunicom.cn
ASN AS4837
Registry APNIC
ID UNICOM-SD

WHOIS Details

inetnum:        123.128.0.0 - 123.135.255.255
netname:        UNICOM-SD
descr:          China Unicom Shandong Province Network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         xz14-ap
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
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-lower:      MAINT-CNCGROUP-SD
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:28:57Z
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

person:         XIAOFENG ZHANG
nic-hdl:        XZ14-AP
e-mail:         [email protected]
address:        Jinan,Shandong P.R China
phone:          +86-531-6666666
fax-no:         +86-531-6666666
country:        CN
mnt-by:         MAINT-ZXF
last-modified:  2008-09-04T07:29:35Z
source:         APNIC

route:          123.128.0.0/13
descr:          CNC Group CHINA169 Shandong Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2008-09-04T07:54:55Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.0.0.0/8

Range ASN Company Num of IPs
123.152.0.0/13 AS4837 China Unicom Zhejiang province network 524,288
123.8.0.0/13 AS4837 China Unicom Henan province network 524,288
123.216.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
123.192.0.0/14 AS38841 kbro CO. Ltd. 262,144
123.244.0.0/14 AS134762 CHINANET liaoning province network 262,144
123.52.0.0/14 AS139587 CHINANET HENAN PROVINCE NETWORK 262,144
123.168.0.0/14 AS4809 CHINANET SHANDONG PROVINCE NETWORK 262,144
123.224.0.0/14 AS4713 NTT DOCOMO BUSINESS,Inc. 262,144
123.184.0.0/14 AS134762 CHINANET liaoning province network 262,144
123.164.0.0/14 AS4809 CHINANET HEILONGJIANG PROVINCE NETWORK 262,144
123.140.0.0/14 AS138195 LG DACOM Corporation 262,144
123.140.0.0/14 AS3786 LG DACOM Corporation 262,144
123.212.0.0/14 AS9318 SK Broadband Co Ltd 262,144
123.244.0.0/14 AS17799 CHINANET liaoning province network 262,144
123.244.0.0/14 AS4134 CHINANET liaoning province network 262,144
123.180.0.0/14 AS4134 CHINANET hebei province network 262,144
123.164.0.0/14 AS4134 CHINANET HEILONGJIANG PROVINCE NETWORK 262,144
123.164.0.0/14 AS137691 CHINANET HEILONGJIANG PROVINCE NETWORK 262,144
123.232.0.0/14 AS4837 China Unicom Shandong Province Network 262,144
123.160.0.0/14 AS139018 CHINANET henan province network 262,144
123.52.0.0/14 AS137687 CHINANET HENAN PROVINCE NETWORK 262,144
123.160.0.0/14 AS137687 CHINANET henan province network 262,144
123.184.0.0/14 AS4134 CHINANET liaoning province network 262,144
123.168.0.0/14 AS4134 CHINANET SHANDONG PROVINCE NETWORK 262,144
123.144.0.0/14 AS4837 China Unicom Chongqing province network 262,144
123.104.0.0/14 AS9595 NTT EAST, Inc. 262,144
123.52.0.0/14 AS4134 CHINANET HENAN PROVINCE NETWORK 262,144
123.160.0.0/14 AS4134 CHINANET henan province network 262,144
123.4.0.0/14 AS4837 China Unicom Henan province network 262,144
123.164.0.0/14 AS17897 CHINANET HEILONGJIANG PROVINCE NETWORK 262,144
123.52.0.0/14 AS139018 CHINANET HENAN PROVINCE NETWORK 262,144
123.244.0.0/14 AS137688 CHINANET liaoning province network 262,144
123.184.0.0/14 AS137688 CHINANET liaoning province network 262,144
123.188.0.0/14 AS4837 China Unicom Liaoning province network 262,144
123.180.0.0/14 AS58539 CHINANET hebei province network 262,144
123.150.0.0/15 AS58542 CHINANET TIANJIN PROVINCE NETWORK 131,072
123.178.0.0/15 AS4134 CHINANET neimeng province network 131,072
123.138.0.0/15 AS4837 China Unicom Shannxi province network 131,072
123.150.0.0/15 AS17638 CHINANET TIANJIN PROVINCE NETWORK 131,072
123.56.0.0/15 AS37963 Aliyun Computing Co., LTD 131,072
123.96.0.0/15 AS4134 CHINANET Zhejiang province network 131,072
123.174.0.0/15 AS4134 CHINANET shangxi province network 131,072
123.172.0.0/15 AS4134 CHINANET JILIN PROVINCE NETWORK 131,072
123.204.0.0/15 AS4780 Digital United Inc. 131,072
123.178.0.0/15 AS4809 CHINANET neimeng province network 131,072
123.206.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072
123.228.0.0/15 AS9644 SK Telecom 131,072
123.172.0.0/15 AS4809 CHINANET JILIN PROVINCE NETWORK 131,072
123.202.0.0/15 AS9269 Hong Kong Broadband Network Ltd 131,072

Hosted domains

There are 5,513 domain names hosted across 920 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
123.129.241.251 656792.com 577
123.133.65.77 huibojixie.com 227
123.133.64.248 jinlonghonggan.net 167
123.133.65.75 sdqzsb.net 143
123.133.64.246 chengyangchem.com 136
123.133.86.8 sdjpblzp.com 124
123.133.86.3 qzhzdyy.com 98
123.133.64.247 wfjinshun.com 95
123.133.86.7 wfcysgs.com 92
123.133.86.2 sdsrd.com 89
123.133.64.241 sdtttl.com 72
123.133.64.233 lidun888.com 70
123.133.64.240 sdsw.net 69
123.133.64.232 wsjqsp.com 66
123.129.219.175 vbm85ag.net.cn 63
123.133.64.254 xn--ycrq3a538ct9g.com 61
123.133.64.227 wfltjbz.com 61
123.133.64.231 tian-he.net 56
123.133.86.9 jindoump.com 56
123.133.64.239 sdyuhai.net 52

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

310,594 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
123.135.199.18 AS4837 CHINA UNICOM China169 Backbone 8.38ms from Qingdao, CN
123.135.220.1 AS4837 CHINA UNICOM China169 Backbone 6.00ms from Qingdao, CN
123.135.244.19 AS4837 CHINA UNICOM China169 Backbone 5.89ms from Qingdao, CN
123.135.224.1 AS4837 CHINA UNICOM China169 Backbone 4.79ms from Qingdao, CN
123.135.206.239 AS4837 CHINA UNICOM China169 Backbone 5.23ms from Qingdao, CN
123.135.171.104 AS4837 CHINA UNICOM China169 Backbone 5.51ms from Qingdao, CN
123.135.207.115 AS4837 CHINA UNICOM China169 Backbone 5.47ms from Qingdao, CN
123.135.184.201 AS4837 CHINA UNICOM China169 Backbone 6.07ms from Qingdao, CN
123.135.159.30 AS4837 CHINA UNICOM China169 Backbone 5.38ms from Qingdao, CN
123.135.247.120 AS4837 CHINA UNICOM China169 Backbone 8.18ms from Qingdao, CN
123.135.176.1 AS4837 CHINA UNICOM China169 Backbone 5.57ms from Qingdao, CN
123.135.211.110 AS4837 CHINA UNICOM China169 Backbone 5.61ms from Qingdao, CN
123.135.197.1 AS4837 CHINA UNICOM China169 Backbone 9.03ms from Qingdao, CN
123.135.250.204 AS4837 CHINA UNICOM China169 Backbone 5.31ms from Qingdao, CN
123.135.180.132 AS4837 CHINA UNICOM China169 Backbone 5.59ms from Qingdao, CN
123.135.191.111 AS4837 CHINA UNICOM China169 Backbone 6.08ms from Qingdao, CN
123.135.204.73 AS4837 CHINA UNICOM China169 Backbone 5.42ms from Qingdao, CN
123.135.165.144 AS4837 CHINA UNICOM China169 Backbone 5.48ms from Qingdao, CN
123.135.240.1 AS4837 CHINA UNICOM China169 Backbone 5.35ms from Qingdao, CN
123.135.170.1 AS4837 CHINA UNICOM China169 Backbone 4.91ms from Qingdao, CN
123.135.208.136 AS4837 CHINA UNICOM China169 Backbone 5.41ms from Qingdao, CN
123.135.245.31 AS4837 CHINA UNICOM China169 Backbone 6.10ms from Qingdao, CN
123.135.188.198 AS4837 CHINA UNICOM China169 Backbone 5.94ms from Qingdao, CN
123.135.209.200 AS4837 CHINA UNICOM China169 Backbone 5.71ms from Qingdao, CN
123.135.193.6 AS4837 CHINA UNICOM China169 Backbone 7.18ms from Qingdao, 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
185.117.209.13 AS1136 KPN B.V. 3.30ms from Amsterdam, NL
94.44.212.29 AS21334 One Hungary Ltd. 13.39ms from Budapest, HU
105.77.125.237 AS36884 Wana Corporate 9.22ms from Casablanca, MA
50.228.51.125 AS7922 Comcast Cable Communications, LLC 0.92ms from Chicago, US
89.28.34.253 AS31252 StarNet Solutii SRL 0.69ms from Chisinau, MD
89.101.253.61 AS6830 Liberty Global Europe Holding B.V. 2.75ms from Dublin, IE
59.51.187.237 AS4134 CHINANET-BACKBONE 0.84ms from Guiyang, CN
122.246.210.221 AS4134 CHINANET-BACKBONE 7.54ms from Hangzhou, CN
14.170.172.13 AS45899 VNPT Corp 2.56ms from Hanoi, VN
84.90.124.61 AS13156 NOWO COMMUNICATIONS, S.A. 6.95ms from Lisbon, PT
76.171.43.109 AS20001 Charter Communications Inc 4.21ms from Los Angeles, US
45.130.85.29 AS42201 PVDataNet AB 0.16ms from Milan, IT
82.120.195.237 AS3215 Orange S.A. 10.01ms from Paris, FR
44.194.57.109 AS14618 Amazon.com, Inc. 0.14ms from Reston, US
52.22.152.253 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
20.57.219.253 AS8075 Microsoft Corporation 0.60ms from San Jose, US
89.11.11.253 AS15659 NextGenTel AS 4.14ms from Sandefjord, NO
177.60.143.189 AS26599 TELEFÔNICA BRASIL S.A 18.54ms from Sao Paulo, BR
73.150.152.109 AS7922 Comcast Cable Communications, LLC 4.66ms from Secaucus, US
106.243.179.221 AS3786 LG DACOM Corporation 1.76ms from Seoul, KR
114.203.194.93 AS9318 SK Broadband Co Ltd 9.83ms from Seoul, KR
18.136.52.93 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG
219.75.80.205 AS9506 Singtel Fibre Broadband 1.33ms from Singapore, SG
60.240.174.45 AS7545 TPG Telecom Limited 0.23ms from Sydney, AU
191.37.12.29 AS263350 rocha e portes ltda 11.16ms from São Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 -f4 123.133.75.16
traceroute to 123.133.75.16 (123.133.75.16): 64 hops max, 52 byte packets
4 [AS4837] 119.4.89.177 3.011 ms
5 [AS4837] 119.4.89.178 10.269 ms
6 *
7 *
8 *
9 [AS4837] 123.133.77.78 45.132 ms
10 *
11 *
12 *
13 [AS4837] 123.133.75.16 38.297 ms
Measurement taken from IPinfo ProbeNet in Chengdu, CN
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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