43.243.16.0/22

AS4837 · CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        43.243.16.0 - 43.243.19.255
netname:        UNICOM-SC
descr:          UNICOM Sichuan province network
descr:          China Unicom
descr:          No.21,Jin-Rong Street
descr:          Beijing 100033
country:        CN
admin-c:        CH1302-AP
tech-c:         XX288-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-SC
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:36:24Z
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:         Xifei Xie
nic-hdl:        XX288-AP
e-mail:         [email protected]
address:        Tianfu Road High-Tec international square C,Chengdu,Sichuan 610041,China
phone:          +86-28-66850327
fax-no:         +86-28-66850327
country:        CN
mnt-by:         MAINT-CNCGROUP-SC
last-modified:  2010-12-27T03:36:01Z
source:         APNIC

route:          43.243.16.0/22
descr:          China Unicom CHINA169 Sichuan Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2014-11-24T03:14:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 43.243.0.0/16

Range	ASN	Company	Num of IPs
43.243.136.0/22	AS4808	Beijing yunchuang communication Technology Co.Ltd.	1,024
43.243.116.0/22	AS38719	Web Address Registration PTY LTD	1,024
43.243.92.0/22	AS12975	Palestine Telecommunications Company (PALTEL)	1,024
43.243.88.0/22	AS9929	China Unicom Hebei province network	1,024
43.243.184.0/22	AS63827	PT Econdelight	1,024
43.243.132.0/22	AS59257	CMPak Limited	1,024
43.243.244.0/22	AS58834	Guangdong Cable Corporation Limited	1,024
43.243.24.0/22	AS12975	Palestine Telecommunications Company (PALTEL)	1,024
43.243.32.0/22	AS12975	Palestine Telecommunications Company (PALTEL)	1,024
43.243.164.0/22	AS133054	Reasonable Software House Limited	1,024
43.243.120.0/22	AS133606	Timor Plaza II, Comoro Dili, Timor Leste	1,024
43.243.176.0/22	AS133606	Viettel Timor Leste	1,024
43.243.128.0/22	AS133775	XIAMEN CenturyNetcomNetwork Services Limited	1,024
43.243.60.0/22	AS55561	Two Degrees Mobile Limited	1,024
43.243.12.0/22	AS4847	BeiJing guangdianxinchuang communication &	1,024
43.243.4.0/22	AS4837	China Unicom Gansu province network	1,024
43.243.188.0/22	AS138415	RedLuff, LLC	1,024
43.243.96.0/22	AS138546	Ncell Pty. Ltd.	1,024
43.243.72.0/22	AS152194	FE Studio Limited	1,024
43.243.208.0/22	AS153494	UNIT 04, 7/F BRIGHT WAY TWOER	1,024
43.243.240.0/22	AS153494	UNIT 04, 7/F BRIGHT WAY TWOER	1,024
43.243.44.0/22	AS153494	UNIT 04, 7/F BRIGHT WAY TOWER	1,024
43.243.64.0/22	AS153494	UNIT 04, 7/F BRIGHT WAY TOWER	1,024
43.243.228.0/22	AS4837	UNICOM InnerMongolia province network	1,024
43.243.40.0/22	AS16509		1,024
43.243.148.0/22	AS17621	5F Greatwall Bldg., A38 Xueyuan Road Haidian District,Beijing	1,024
43.243.156.0/22	AS4837	UNICOM GuiZhou Province Network	1,024
43.243.232.0/22	AS23724	ChinaNetCenter Ltd.	1,024
43.243.84.0/22	AS25820	Cluster Logic Inc	1,024
43.243.58.0/23	AS132268	Velocity Net Limited	512
43.243.56.0/23	AS132857	FULL FLAVOUR LIMITED	512
43.243.237.0/24	AS38583	Orro Pty Ltd	256
43.243.236.0/24	AS38583	Orro CSG Customers - NSW	256
43.243.118.0/24	AS38719	Dreamscape Networks Inc Australia	256
43.243.194.0/24	AS32043	NeoFiber Communications inc.	256
43.243.195.0/24	AS21859	ITAOYUN LIMITED	256
43.243.255.0/24	AS17408	Taiwan Infrastructure Network Technologies	256
43.243.193.0/24	AS16509	ITAOYUN	256
43.243.192.0/24	AS134972	ITAOYUN LIMITED IPXO	256
43.243.171.0/24	AS134176	Asia Pacific Cloud (Hong Kong) Holdings Limited	256
43.243.170.0/24	AS134176	Asia Pacific Cloud (Hong Kong) Holdings Limited	256
43.243.238.0/24	AS55766	Orro Pty Ltd	256
43.243.239.0/24	AS55766	Orro Pty Ltd	256
43.243.168.0/24	AS55933	Asia Pacific Cloud (Hong Kong) Holdings Limited	256
43.243.169.0/24	AS55933	Asia Pacific Cloud (Hong Kong) Holdings Limited	256
43.243.0.0/24	AS56294	NetVault	256
43.243.2.0/24	AS56294	NetVault	256
43.243.3.0/24	AS56294	NetVault	256
43.243.224.0/24	AS58779	i4HK Limited	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
108.69.110.182	AS7018 AT&T Enterprises, LLC	`15.78ms` from Atlanta, US
44.239.230.166	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
104.225.14.6	AS36236 NetActuate, Inc	`0.15ms` from Dallas, US
1.62.114.22	AS4837 CHINA UNICOM China169 Backbone	`7.05ms` from Harbin, CN
180.232.142.70	AS9658 Eastern Telecoms Phils., Inc.	`0.89ms` from Manila, PH
72.136.145.86	AS812 Rogers Communications Canada Inc.	`14.68ms` from Montreal, CA
192.126.143.38	AS397731 EliteWork LLC	`1.09ms` from Seattle, US
183.112.191.198	AS4766 Korea Telecom	`1.47ms` from Seoul, KR
183.118.218.70	AS4766 Korea Telecom	`7.42ms` from Seoul, KR
167.103.251.118	AS53813 ZSCALER, INC.	`0.12ms` from Sydney, AU
24.93.162.150	AS10796 Charter Communications Inc	`10.76ms` from Toronto, CA
85.145.248.86	AS50266 Odido Netherlands B.V.	`3.78ms` from Amsterdam, NL
124.207.230.38	AS4808 China Unicom Beijing Province Network	`3.86ms` from Beijing, CN
73.227.141.118	AS7922 Comcast Cable Communications, LLC	`11.86ms` from Boston, US
96.94.142.182	AS7922 Comcast Cable Communications, LLC	`8.30ms` from Flint, US
68.48.247.6	AS7922 Comcast Cable Communications, LLC	`8.49ms` from Flint, US
92.138.124.70	AS3215 Orange S.A.	`9.67ms` from Frankfurt am Main, DE
47.242.42.38	AS45102 Alibaba (US) Technology Co., Ltd.	`0.73ms` from Hong Kong, HK
188.28.70.118	AS206067 Hutchison 3G UK Limited	`6.75ms` from London, GB
79.57.93.230	AS3269 Telecom Italia S.p.A.	`2.27ms` from Milan, IT
52.60.47.230	AS16509 Amazon.com, Inc.	`0.14ms` from Montreal, CA
95.78.126.70	AS42116 JSC "ER-Telecom Holding"	`11.61ms` from Samara, RU
129.116.64.230	AS18 University of Texas at Austin	`5.01ms` from San Antonio, US
187.193.241.118	AS8151 UNINET	`4.24ms` from Santiago de Queretaro, MX
125.229.234.6	AS3462 Data Communication Business Group	`4.29ms` from Taichung, TW

Traceroute

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

traceroute -a -n -q1 -f3 -m12 43.243.18.173

traceroute to 43.243.18.173 (43.243.18.173): 12 hops max, 52 byte packets

3 [] 203.144.97.117 5.115 ms

4 *

5 *

6 *

7 *

8 [] 59.43.130.125 8.206 ms

9 [AS4837] 219.158.38.245 55.974 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 28th 2025

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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