1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.31.0.0/16
  4. AS4837  | 121.31.0.0/16

121.31.0.0/16

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        121.31.0.0 - 121.31.255.255
netname:        UNICOM-GX
descr:          China Unicom Guangxi province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         LH602-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-GX
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:09:35Z
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:         liu huanyi
nic-hdl:        LH602-AP
e-mail:         nnlhy@gxcc.com.cn
address:        44,Xinghu Road,Xingcheng District,Nanning,CHINA
phone:          +86-771-2597426
fax-no:         +86-771-2522019
country:        CN
mnt-by:         MAINT-CNCGROUP-GX
last-modified:  2008-09-04T07:34:50Z
source:         APNIC

route:          121.31.0.0/16
descr:          CNC Group CHINA169 Guangxi Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2008-09-04T07:54:48Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range ASN Company Num of IPs
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.160.0.0/11 AS38089 Korea Telecom 2,097,152
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.160.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.160.0.0/11 AS23582 Korea Telecom 2,097,152
121.128.0.0/11 AS18333 Korea Telecom 2,097,152
121.224.0.0/12 AS4134 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137702 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134770 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS140292 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134756 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137697 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS146966 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137699 CHINANET jiangsu province network 1,048,576
121.208.0.0/12 AS1221 Telstra Limited 1,048,576
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS140308 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS136199 CHINANET Guangdong province network 524,288
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
121.8.0.0/13 AS4134 CHINANET Guangdong province network 524,288
121.32.0.0/14 AS4134 CHINANET Guangdong province network 262,144
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.64.0.0/14 AS23555 LG DACOM Corporation 262,144
121.204.0.0/14 AS4134 CHINANET Fujian province network 262,144
121.204.0.0/14 AS133776 CHINANET Fujian province network 262,144
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.24.0.0/14 AS4837 China Unicom Hebei province network 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 262,144
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.84.0.0/14 AS17511 OPTAGE Inc. 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.204.0.0/14 AS133774 CHINANET Fujian province network 262,144
121.60.0.0/14 AS148981 CHINANET Hubei province network 262,144
121.98.0.0/15 AS9790 Two Degrees Mobile Limited 131,072
121.2.0.0/15 AS2527 Sony Network Communications Inc. 131,072
121.124.0.0/15 AS9318 SK Broadband Co Ltd 131,072
121.44.0.0/15 AS7545 iiNet Limited 131,072
121.4.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.4.0.0/15 AS132203 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.44.0.0/15 AS4739 iiNet Limited 131,072
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.28.0.0/15 AS4837 China Unicom Hebei province network 131,072

Hosted domains

There are 121 domain names hosted across 103 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.31.125.54 hivicloud.com 5
121.31.35.149 ykw123.com 5
121.31.63.20 gxcdwx.com 3
121.31.38.36 gxzksj.cn 2
121.31.112.222 bbtpress.com.cn 2
121.31.79.140 gxlct.cn 2
121.31.219.242 mnmapp.cn 2
121.31.46.30 gxgeq.com 2
121.31.66.16 wz-zh.com 2
121.31.210.253 glslykxyjs.com 2
121.31.49.120 menruxi.com 2
121.31.67.112 wuzhouedu.com.cn 1
121.31.79.162 gxwzxz.com 1
121.31.69.42 gxwzast.org.cn 1
121.31.88.22 kltb.net 1
121.31.46.152 i-roads.cn 1
121.31.138.82 peikur.fun 1
121.31.114.226 gllcmhbl.cn 1
121.31.5.237 nnsjcgs.com 1
121.31.38.67 nnyj.top 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
Read more

Pingable IPs

14,125 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.31.121.63 AS4837 CHINA UNICOM China169 Backbone 10.01ms from Nanning, CN
121.31.196.184 AS4837 CHINA UNICOM China169 Backbone 6.08ms from Nanning, CN
121.31.237.154 AS4837 CHINA UNICOM China169 Backbone 4.81ms from Nanning, CN
121.31.140.188 AS4837 CHINA UNICOM China169 Backbone 5.18ms from Nanning, CN
121.31.133.198 AS4837 CHINA UNICOM China169 Backbone 6.20ms from Nanning, CN
121.31.208.18 AS4837 CHINA UNICOM China169 Backbone 11.84ms from Nanning, CN
121.31.239.252 AS4837 CHINA UNICOM China169 Backbone 5.70ms from Nanning, CN
121.31.177.246 AS4837 CHINA UNICOM China169 Backbone 8.38ms from Nanning, CN
121.31.173.63 AS4837 CHINA UNICOM China169 Backbone 8.41ms from Nanning, CN
121.31.219.129 AS4837 CHINA UNICOM China169 Backbone 5.05ms from Nanning, CN
121.31.122.237 AS4837 CHINA UNICOM China169 Backbone 16.28ms from Guiyang, CN
121.31.242.7 AS4837 CHINA UNICOM China169 Backbone 3.53ms from Nanning, CN
121.31.172.50 AS4837 CHINA UNICOM China169 Backbone 8.43ms from Nanning, CN
121.31.231.252 AS4837 CHINA UNICOM China169 Backbone 4.76ms from Nanning, CN
121.31.132.55 AS4837 CHINA UNICOM China169 Backbone 6.23ms from Nanning, CN
121.31.113.161 AS4837 CHINA UNICOM China169 Backbone 6.95ms from Nanning, CN
121.31.136.100 AS4837 CHINA UNICOM China169 Backbone 5.41ms from Nanning, CN
121.31.118.7 AS4837 CHINA UNICOM China169 Backbone 16.46ms from Guangzhou, CN
121.31.135.220 AS4837 CHINA UNICOM China169 Backbone 6.13ms from Nanning, CN
121.31.233.25 AS4837 CHINA UNICOM China169 Backbone 4.70ms from Nanning, CN
121.31.230.84 AS4837 CHINA UNICOM China169 Backbone 4.69ms from Nanning, CN
121.31.184.144 AS4837 CHINA UNICOM China169 Backbone 7.65ms from Nanning, CN
121.31.200.202 AS4837 CHINA UNICOM China169 Backbone 5.98ms from Nanning, CN
121.31.229.97 AS4837 CHINA UNICOM China169 Backbone 4.68ms from Nanning, CN
121.31.170.252 AS4837 CHINA UNICOM China169 Backbone 8.63ms from Nanning, 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
35.166.51.176 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
20.29.116.208 AS8075 Microsoft Corporation 0.21ms from Des Moines, US
34.248.181.160 AS16509 Amazon.com, Inc. 0.12ms from Dublin, IE
42.85.238.208 AS4837 CHINA UNICOM China169 Backbone 9.54ms from Liaoyang, CN
47.154.168.64 AS5650 Frontier Communications of America, Inc. 4.15ms from Los Angeles, US
177.99.193.64 AS18881 TELEFÔNICA BRASIL S.A 7.02ms from Rio de Janeiro, BR
75.157.134.112 AS852 TELUS Communications Inc. 7.09ms from Seattle, US
180.165.9.144 AS4812 China Telecom (Group) 3.02ms from Shanghai, CN
88.80.105.0 AS39184 UltraNET Ltd 1.91ms from Sofia, BG
117.68.211.32 AS4134 CHINANET-BACKBONE 7.44ms from Wuhan, CN
140.20.210.48 AS5852 United States Department of Defense (DoD) 2.00ms from Ashburn, US
44.242.146.176 AS16509 Amazon.com, Inc. 0.53ms from Boardman, US
109.59.123.112 AS44034 Hi3G Access AB 5.62ms from Copenhagen, DK
34.243.211.160 AS16509 Amazon.com, Inc. 0.20ms from Dublin, IE
81.35.103.144 AS3352 TELEFONICA DE ESPANA S.A.U. 2.33ms from Madrid, ES
95.163.183.32 AS47764 LLC VK 0.73ms from Moscow, RU
153.244.77.224 AS4713 NTT DOCOMO BUSINESS,Inc. 4.52ms from Osaka, JP
94.239.13.32 AS5410 Bouygues Telecom SA 2.52ms from Paris, FR
220.80.17.16 AS4766 Korea Telecom 5.54ms from Seoul, KR
163.228.63.224 AS58593 Shanghai Blue Cloud Technology Co.,Ltd 5.68ms from Shanghai, CN
177.133.83.0 AS18881 TELEFÔNICA BRASIL S.A 16.39ms from São Paulo, BR
117.243.59.144 AS9829 National Internet Backbone 12.21ms from Bengaluru, IN
41.46.172.224 AS8452 TE-AS 4.63ms from Cairo, EG
67.190.115.16 AS7922 Comcast Cable Communications, LLC 2.64ms from Denver, US
95.93.173.112 AS2860 NOS COMUNICACOES, S.A. 5.55ms from Lisbon, PT

Traceroute

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

$
traceroute -a -n -q1 -m11 121.31.243.30
traceroute to 121.31.243.30 (121.31.243.30): 11 hops max, 52 byte packets
1 [AS397373] 192.154.230.1 259.563 ms
2 *
3 *
4 *
6 [AS3257] 66.171.237.82 12.904 ms
7 *
8 [AS4837] 219.158.19.78 210.949 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Los Angeles, US
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.

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