121.30.0.0/16

AS4837 · CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        121.30.0.0 - 121.30.255.255
netname:        UNICOM-SX
descr:          China Unicom Shan1xi province network
descr:          China Unicom
country:        CN
admin-c:        YZ225-AP
tech-c:         YZ225-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-SX
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:19:56Z
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:         Ying Zhao
nic-hdl:        YZ225-AP
e-mail:         [email protected]
address:        Taiyuan Shanxi
phone:          +86-351-4091749
fax-no:         +86-351-4088347
country:        CN
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:30:24Z
source:         APNIC

route:          121.30.0.0/16
descr:          CNC Group CHINA169 Shan1xi 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	AS18333	Korea Telecom	2,097,152
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	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
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.224.0.0/12	AS4134	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	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	AS134770	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS140293	CHINANET jiangsu province network	1,048,576
121.208.0.0/12	AS1221	Telstra Limited	1,048,576
121.224.0.0/12	AS137699	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	AS137702	CHINANET jiangsu province network	1,048,576
121.8.0.0/13	AS135089	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS136199	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS140308	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS4134	CHINANET Guangdong province network	524,288
121.16.0.0/13	AS4837	China Unicom Hebei province network	524,288
121.112.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
121.64.0.0/14	AS17586	LG DACOM Corporation	262,144
121.64.0.0/14	AS23555	LG DACOM Corporation	262,144
121.84.0.0/14	AS17511	OPTAGE Inc.	262,144
121.64.0.0/14	AS17598	LG DACOM Corporation	262,144
121.60.0.0/14	AS4134	CHINANET Hubei province network	262,144
121.64.0.0/14	AS3786	LG DACOM Corporation	262,144
121.32.0.0/14	AS4134	CHINANET Guangdong province network	262,144
121.204.0.0/14	AS133776	CHINANET Fujian province network	262,144
121.204.0.0/14	AS133775	CHINANET Fujian province network	262,144
121.204.0.0/14	AS4134	CHINANET Fujian province network	262,144
121.40.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.60.0.0/14	AS148981	CHINANET Hubei province network	262,144
121.80.0.0/14	AS17511	OPTAGE Inc.	262,144
121.60.0.0/14	AS137266	CHINANET Hubei province network	262,144
121.196.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.24.0.0/14	AS4837	China Unicom Hebei province network	262,144
121.204.0.0/14	AS133774	CHINANET Fujian province network	262,144
121.248.0.0/14	AS4538	China Education and Research Network	262,144
121.98.0.0/15	AS9790	Two Degrees Mobile Limited	131,072
121.76.0.0/15	AS9812	Oriental Cable Network Co., Ltd.	131,072
121.48.0.0/15	AS4538	China Education and Research Network	131,072
121.4.0.0/15	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	131,072
121.2.0.0/15	AS2527	Sony Network Communications Inc.	131,072
121.194.0.0/15	AS4538	China Education and Research Network	131,072
121.44.0.0/15	AS4739	iiNet Limited	131,072

Hosted domains

There are 62 domain names hosted across 51 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.30.23.142	dtidc.top	4
121.30.232.110	pingcheng.gov.cn	3
121.30.227.170	dtyxjd.com	3
121.30.226.54	wjzs.com	2
121.30.191.201	urhealth.net	2
121.30.226.26	dtzx.net	2
121.30.146.234	im6k.fun	2
121.30.184.131	starryds.cn	2
121.30.184.137	starryemby.com	2
121.30.199.87	wjjwj.cn	1
121.30.233.202	byhssd.com	1
121.30.242.26	datonghealth.cn	1
121.30.213.89	tianyu-bjei.cn	1
121.30.137.243	chang-jiang.asia	1
121.30.192.203	xbuilding.com.cn	1
121.30.192.247	gangwanwuye.com	1
121.30.188.244	zhongshunkeji.xyz	1
121.30.193.137	dtspcqgqtxzg.cn	1
121.30.203.211	dtczjs.com	1
121.30.202.231	lqhgy.cn	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

15,686 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
121.30.14.98	AS4837 CHINA UNICOM China169 Backbone	`6.95ms` from Taiyuan, CN
121.30.21.8	AS4837 CHINA UNICOM China169 Backbone	`9.54ms` from Taiyuan, CN
121.30.24.1	AS4837 CHINA UNICOM China169 Backbone	`16.50ms` from Xi'an, CN
121.30.4.9	AS4837 CHINA UNICOM China169 Backbone	`1.84ms` from Taiyuan, CN
121.30.29.240	AS4837 CHINA UNICOM China169 Backbone	`7.24ms` from Taiyuan, CN
121.30.20.239	AS4837 CHINA UNICOM China169 Backbone	`8.80ms` from Taiyuan, CN
121.30.5.155	AS4837 CHINA UNICOM China169 Backbone	`5.55ms` from Taiyuan, CN
121.30.13.205	AS4837 CHINA UNICOM China169 Backbone	`7.53ms` from Taiyuan, CN
121.30.30.1	AS4837 CHINA UNICOM China169 Backbone	`6.25ms` from Taiyuan, CN
121.30.22.240	AS4837 CHINA UNICOM China169 Backbone	`7.14ms` from Taiyuan, CN
121.30.2.130	AS4837 CHINA UNICOM China169 Backbone	`5.74ms` from Taiyuan, CN
121.30.12.162	AS4837 CHINA UNICOM China169 Backbone	`7.32ms` from Taiyuan, CN
121.30.15.26	AS4837 CHINA UNICOM China169 Backbone	`7.38ms` from Taiyuan, CN
121.30.17.7	AS4837 CHINA UNICOM China169 Backbone	`6.93ms` from Taiyuan, CN
121.30.18.203	AS4837 CHINA UNICOM China169 Backbone	`7.95ms` from Taiyuan, CN
121.30.8.2	AS4837 CHINA UNICOM China169 Backbone	`6.45ms` from Taiyuan, CN
121.30.16.231	AS4837 CHINA UNICOM China169 Backbone	`7.37ms` from Taiyuan, CN
121.30.23.255	AS4837 CHINA UNICOM China169 Backbone	`6.85ms` from Taiyuan, CN
121.30.1.15	AS4837 CHINA UNICOM China169 Backbone	`6.79ms` from Taiyuan, CN
121.30.26.0	AS4837 CHINA UNICOM China169 Backbone	`6.84ms` from Taiyuan, CN
121.30.19.246	AS4837 CHINA UNICOM China169 Backbone	`7.42ms` from Taiyuan, CN
121.30.0.199	AS4837 CHINA UNICOM China169 Backbone	`5.80ms` from Taiyuan, CN
121.30.6.97	AS4837 CHINA UNICOM China169 Backbone	`5.72ms` from Taiyuan, CN
121.30.27.179	AS4837 CHINA UNICOM China169 Backbone	`8.05ms` from Taiyuan, CN
121.30.10.1	AS4837 CHINA UNICOM China169 Backbone	`16.11ms` from Zhengzhou, 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
105.108.14.80	AS36947 Telecom Algeria	`14.88ms` from Algiers, DZ
166.78.37.96	AS33070 Rackspace Hosting	`1.06ms` from Dallas, US
114.55.125.128	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.67ms` from Hangzhou, CN
80.40.197.80	AS13285 TalkTalk Communications Limited	`4.03ms` from London, GB
209.200.93.80	AS14992 NewtekOne, Inc.	`9.73ms` from Los Angeles, US
6.11.136.224	AS668 United States Department of Defense (DoD)	`1.76ms` from Los Angeles, US
41.90.98.48	AS37061 Safaricom Limited	`1.82ms` from Mombasa, KE
88.124.147.128	AS12322 Free SAS	`5.68ms` from Paris, FR
108.72.122.80	AS7018 AT&T Enterprises, LLC	`18.99ms` from San Jose, US
153.121.255.48	AS10013 FreeBit Co.,Ltd.	`2.59ms` from Tokyo, JP
47.39.250.176	AS20115 Charter Communications LLC	`14.48ms` from Atlanta, US
3.23.40.16	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
97.183.219.128	AS6167 Verizon Business	`18.53ms` from Dallas, US
178.17.237.0	AS200519 NYNEX fiberONE	`0.97ms` from Frankfurt am Main, DE
86.133.204.144	AS2856 British Telecommunications PLC	`5.70ms` from London, GB
69.115.135.128	AS6128 Cablevision Systems Corp.	`9.33ms` from New York City, US
73.150.164.80	AS7922 Comcast Cable Communications, LLC	`5.97ms` from New York City, US
3.215.145.224	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
186.221.53.32	AS28573 Claro NXT Telecomunicacoes Ltda	`2.19ms` from Rio de Janeiro, BR
151.28.252.96	AS1267 WIND TRE S.P.A.	`9.70ms` from Rome, IT
69.153.16.224	AS7018 AT&T Enterprises, LLC	`3.61ms` from San Antonio, US
114.35.89.64	AS3462 Data Communication Business Group	`1.98ms` from Taichung, TW
104.164.120.144	AS212238 Datacamp Limited	`0.34ms` from Warsaw, PL
120.194.192.176	AS24445 Henan Mobile Communications Co.,Ltd	`7.80ms` from Zhengzhou, CN
24.197.99.112	AS20115 Charter Communications LLC	`6.11ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 -f3 -m8 121.30.125.47

traceroute to 121.30.125.47 (121.30.125.47): 8 hops max, 52 byte packets

3 [AS3356] 4.17.32.102 32.055 ms

4 [AS4837] 219.158.97.177 196.1 ms

5 [AS4837] 219.158.6.185 173.968 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Casper, US

On January 30th 2026

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