210.51.27.0/24

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 210.51.27.0/24

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 7 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.51.27.250	hudsongpt.com.cn	3
210.51.27.13	richvd.com	2
210.51.27.25	shtj122.com	1
210.51.27.29	atmbtc.cn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
210.51.27.168	AS138421 China Unicom	`2.99ms` 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
216.252.159.200	AS12684 SES ASTRA S.A.	`5.09ms` from Ashburn, US
208.58.205.136	AS6079 RCN	`4.82ms` from Ashburn, US
98.24.57.8	AS11426 Charter Communications Inc	`8.95ms` from Charlotte, US
162.194.162.184	AS7018 AT&T Enterprises, LLC	`11.09ms` from Chicago, US
77.181.105.104	AS6805 Telefonica Germany GmbH & Co.OHG	`2.80ms` from Frankfurt am Main, DE
35.214.67.216	AS15169 Google LLC	`0.09ms` from London, GB
217.42.102.136	AS2856 British Telecommunications PLC	`6.99ms` from London, GB
24.52.13.248	AS11232 Midcontinent Communications	`14.34ms` from Minneapolis, US
95.190.145.152	AS12389 PJSC Rostelecom	`7.12ms` from Novosibirsk, RU
176.169.113.104	AS5410 Bouygues Telecom SA	`2.21ms` from Paris, FR
175.209.175.8	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
14.38.207.248	AS4766 Korea Telecom	`2.20ms` from Seoul, KR
13.78.35.56	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
204.244.46.8	AS5071 Navigata Communications Limited	`8.32ms` from Toronto, CA
79.224.134.200	AS3320 Deutsche Telekom AG	`1.26ms` from Berlin, DE
173.237.94.168	AS399512 Suite224 Internet	`6.74ms` from Buffalo, US
102.46.210.184	AS8452 TE-AS	`4.26ms` from Cairo, EG
102.176.251.8	AS328260 Sportpesa [PTY] LTD	`1.17ms` from Cape Town, ZA
60.187.103.72	AS4134 CHINANET-BACKBONE	`7.30ms` from Hangzhou, CN
14.136.2.200	AS9269 Hong Kong Broadband Network Ltd.	`1.06ms` from Hong Kong, HK
210.6.23.168	AS9269 Hong Kong Broadband Network Ltd.	`0.46ms` from Hong Kong, HK
180.68.192.152	AS9318 SK Broadband Co Ltd	`6.70ms` from Incheon, KR
119.182.110.216	AS4837 CHINA UNICOM China169 Backbone	`5.81ms` from Jinan, CN
216.150.217.24	AS13649 Flexential Colorado Corp.	`7.68ms` from Los Angeles, US
76.108.227.216	AS7922 Comcast Cable Communications, LLC	`3.96ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f5 210.51.27.213

traceroute to 210.51.27.213 (210.51.27.213): 64 hops max, 52 byte packets

5 [AS140979] 220.196.197.170 2.156 ms

6 *

7 *

8 *

9 [AS138421] 220.196.255.94 4.172 ms

10 *

11 *

12 [AS138421] 220.196.249.242 3.399 ms

13 *

14 [AS138421] 210.51.27.213 3.4 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On February 16th 2026

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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