210.51.61.0/24

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 210.51.61.0/24

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

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

IP Address	ASN	Details
210.51.61.129	AS138421 China Unicom	`2.75ms` 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
131.164.234.232	AS3292 TDC Holding A/S	`1.22ms` from Copenhagen, DK
52.116.179.104	AS36351 IBM Cloud	`0.94ms` from Dallas, US
3.249.129.200	AS16509 Amazon.com, Inc.	`0.57ms` from Dublin, IE
92.137.160.72	AS3215 Orange S.A.	`8.96ms` from Marseille, FR
109.241.166.120	AS29314 VECTRA S.A.	`13.55ms` from Poznan, PL
16.16.153.136	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
126.44.197.104	AS17676 SoftBank Corp.	`3.24ms` from Tokyo, JP
111.178.183.104	AS4134 CHINANET-BACKBONE	`4.17ms` from Wuhan, CN
97.146.176.72	AS6167 Verizon Business	`18.48ms` from Ashburn, US
71.178.139.8	AS701 Verizon Business	`3.37ms` from Ashburn, US
123.122.40.136	AS4808 China Unicom Beijing Province Network	`3.90ms` from Beijing, CN
136.226.198.136	AS62044 Zscaler Switzerland GmbH	`0.22ms` from Frankfurt am Main, DE
46.22.154.184	AS13101 TNG Stadtnetz GmbH	`3.24ms` from Hamburg, DE
92.16.237.216	AS13285 TalkTalk Communications Limited	`4.08ms` from London, GB
79.54.55.248	AS3269 Telecom Italia S.p.A.	`8.34ms` from Milan, IT
69.57.233.232	AS11139 Cable & Wireless Dominica	`16.77ms` from Saint George's, GD
183.121.245.232	AS4766 Korea Telecom	`4.82ms` from Seoul, KR
165.228.158.40	AS1221 Telstra Limited	`3.72ms` from Sydney, AU
49.119.120.248	AS4134 CHINANET-BACKBONE	`1.11ms` from UEruemqi, CN
39.164.171.232	AS24445 Henan Mobile Communications Co.,Ltd	`5.11ms` from Zhengzhou, CN
3.124.137.152	AS16509 Amazon.com, Inc.	`0.18ms` from Frankfurt am Main, DE
31.56.76.168	AS3320 Deutsche Telekom AG	`1.00ms` from Frankfurt am Main, DE
93.211.55.72	AS3320 Deutsche Telekom AG	`1.98ms` from Frankfurt am Main, DE
116.129.125.136	AS4837 CHINA UNICOM China169 Backbone	`13.64ms` from Kunming, CN
195.11.255.40	AS1273 Vodafone Group PLC	`1.24ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 210.51.61.248

traceroute to 210.51.61.248 (210.51.61.248): 64 hops max, 52 byte packets

3 [AS3356] 4.69.209.165 152.289 ms

4 *

5 *

6 [AS4837] 219.158.19.78 229.135 ms

7 *

8 *

9 [AS138421] 220.196.252.166 208.397 ms

10 [AS138421] 210.51.61.248 217.774 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On February 16th 2026

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