210.51.34.0/23

AS138421 · China Unicom

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Summary

Country	China
Domain	china-netcom.com
ASN	AS138421
Parent Range	210.51.0.0/16
Registry	APNIC
ID	CNC-SH-IDC

WHOIS Details

inetnum:        210.51.20.0 - 210.51.63.255
netname:        CNC-SH-IDC
country:        CN
descr:          Shanghai Caohejing IDC of China Netcom
admin-c:        CH140-AP
tech-c:         YQ87-AP
status:         ALLOCATED NON-PORTABLE
changed:        cncipaddr@china-netcom.com 20040227
mnt-by:         MAINT-CN-ZM28
mnt-lower:      MAINT-CN-SHIDC
source:         APNIC

role:           CNCIDC hostmaster
address:        No.1,Beihuan Donglu,BDA,Beijing,China
country:        CN
phone:          +8610 6787 5599
fax-no:         +8610 6787 8624
e-mail:         cncipaddr@china-netcom.com
remarks:        send spam and abuse reports to tech-group@china-netcom.com
remarks:        Please include detailed information and times in UTC
admin-c:        TJ35-AP
tech-c:         TC254-AP
nic-hdl:        Ch140-AP
notify:         cncipaddr@china-netcom.com
mnt-by:         MAINT-CN-ZM28
changed:        hm-changed@apnic.net 20040226
source:         APNIC
changed:        hm-changed@apnic.net 20111114

person:         yanping qian
nic-hdl:        YQ87-AP
e-mail:         qianyp@china-netcom.com
address:        shanghai IDC of China Netcom
phone:          +86-021-58878899
fax-no:         +86-021-58878899
country:        cn
changed:        cncipaddr@china-netcom.com 20040227
mnt-by:         MAINT-CN-SHIDC
source:         APNIC

route:          210.51.0.0/16
descr:          CNC Group CncNet
country:        CN
origin:         AS9929
mnt-by:         MAINT-CNCGROUP-RR
changed:        abuse@cnc-noc.net 20060330
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.51.34.0/23

Range	ASN	Company	Num of IPs
210.51.0.0/16	AS9929	China Unicom IP network	65,536

Nearby Ranges

BGP prefixes that overlap with 210.51.0.0/16

Range	ASN	Company	Num of IPs
210.51.0.0/16	AS9929	China Unicom IP network	65,536
210.51.216.0/21	AS9929	Nanjing Banglian Television	2,048
210.51.230.0/23	AS9929	East Communication Co.	512
210.51.232.0/23	AS9929	NO.121 Fucheng Road,Mianyang,	512
210.51.229.0/24	AS9929	Jianghan Oil filed Communication	256
210.51.185.0/24	AS4808	CNC S-IDC YIZHUANG	256
210.51.241.0/24	AS9929	SuTian Broadcast Television	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
210.51.35.150	AS17621 China Unicom Shanghai network	`5.93ms` from Shanghai, 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
20.67.43.183	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
102.47.78.231	AS8452 TE-AS	`4.39ms` from Cairo, EG
107.13.165.103	AS11426 Charter Communications Inc	`9.26ms` from Charlotte, US
216.8.208.231	AS13807 Great Plains Communications LLC	`6.06ms` from Chicago, US
149.75.140.199	AS6079 RCN	`8.22ms` from Chicago, US
174.130.43.151	AS7029 Windstream Communications LLC	`11.74ms` from Chicago, US
81.152.236.39	AS2856 British Telecommunications PLC	`3.37ms` from London, GB
109.61.125.183	AS199524 G-Core Labs S.A.	`0.11ms` from Luxembourg, LU
216.5.78.119	AS17119 Kampung Communications	`0.94ms` from Miami, US
82.54.61.151	AS3269 Telecom Italia S.p.A.	`2.26ms` from Milan, IT
79.229.72.183	AS3320 Deutsche Telekom AG	`6.55ms` from Nuernberg, DE
71.195.174.23	AS7922 Comcast Cable Communications, LLC	`7.15ms` from San Jose, US
190.80.205.23	AS6400 Compañía Dominicana de Teléfonos S. A.	`2.11ms` from Santo Domingo, DO
24.69.43.247	AS6327 Shaw Communications	`7.84ms` from Seattle, US
119.207.6.231	AS4766 Korea Telecom	`10.07ms` from Seoul, KR
217.172.188.231	AS29066 velia.net Internetdienste GmbH	`0.22ms` from Strasbourg, FR
150.31.204.183	AS2497 Internet Initiative Japan Inc.	`1.85ms` from Tokyo, JP
182.119.212.55	AS4837 CHINA UNICOM China169 Backbone	`1.02ms` from Zhengzhou, CN
173.236.240.119	AS26347 New Dream Network, LLC	`0.58ms` from Ashburn, US
108.51.18.151	AS701 Verizon Business	`2.23ms` from Ashburn, US
87.167.211.103	AS3320 Deutsche Telekom AG	`3.52ms` from Duesseldorf, DE
1.249.237.71	AS9318 SK Broadband Co Ltd	`5.95ms` from Incheon, KR
86.159.61.7	AS2856 British Telecommunications PLC	`1.58ms` from London, GB
222.190.127.119	AS4134 CHINANET-BACKBONE	`1.04ms` from Nanjing, CN
83.246.178.71	AS31364 Joint Stock Company TransTeleCom	`3.57ms` from Novosibirsk, RU

Traceroute

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

traceroute -a -n -q1 -f3 -m15 210.51.34.239

traceroute to 210.51.34.239 (210.51.34.239): 15 hops max, 52 byte packets

3 [AS3257] 195.72.82.241 0.23 ms

4 *

5 [AS4837] 219.158.33.201 20.468 ms

6 [AS4837] 219.158.19.125 158.424 ms

7 *

8 *

9 *

10 *

11 [AS138421] 220.196.252.170 229.737 ms

12 [AS138421] 140.206.218.138 167.8 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in London, GB

On February 16th 2026

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