210.51.32.0/24

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 210.51.32.0/24

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

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.51.32.12	qxpress.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

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
184.25.38.40	AS16625 Akamai Technologies, Inc.	`0.16ms` from Ashburn, US
107.198.108.24	AS7018 AT&T Enterprises, LLC	`11.51ms` from Atlanta, US
3.130.135.24	AS16509 Amazon.com, Inc.	`7.80ms` from Chicago, US
222.177.55.8	AS4134 CHINANET-BACKBONE	`2.91ms` from Chongqing, CN
80.209.84.104	AS44869 FIBIA P/S	`1.57ms` from Copenhagen, DK
129.13.168.72	AS34878 Karlsruhe Institute of Technology	`4.01ms` from Frankfurt am Main, DE
54.37.122.184	AS16276 OVH SAS	`0.09ms` from Gravelines, FR
80.195.191.216	AS5089 Virgin Media Limited	`10.21ms` from London, GB
107.154.200.56	AS19551 Incapsula Inc	`0.14ms` from Melbourne, AU
88.47.119.248	AS3269 Telecom Italia S.p.A.	`3.81ms` from Milan, IT
179.26.1.56	AS6057 Administracion Nacional de Telecomunicaciones	`1.81ms` from Montevideo, UY
176.195.142.24	AS12714 PJSC MegaFon	`1.63ms` from Moscow, RU
36.155.187.184	AS56046 China Mobile communications corporation	`1.11ms` from Nanjing, CN
203.205.102.72	AS18092 Kyushu Tele Communications Company	`15.49ms` from Osaka, JP
73.194.215.120	AS7922 Comcast Cable Communications, LLC	`8.85ms` from Piscataway, US
23.23.205.136	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
187.236.78.56	AS8151 UNINET	`3.77ms` from Santiago de Queretaro, MX
202.30.164.216	AS4670 Shinbiro	`1.43ms` from Seoul, KR
46.11.51.24	AS15735 GO p.l.c.	`2.45ms` from Swieqi, MT
149.210.227.56	AS20857 Signet B.V.	`0.65ms` from Amsterdam, NL
109.200.203.200	AS49544 i3D.net B.V	`1.30ms` from Amsterdam, NL
181.3.51.152	AS7303 Telecom Argentina S.A.	`11.37ms` from Buenos Aires, AR
93.218.70.56	AS3320 Deutsche Telekom AG	`4.37ms` from Duesseldorf, DE
108.232.8.184	AS7018 AT&T Enterprises, LLC	`3.52ms` from Durham, US
62.91.174.200	AS20686 Bisping & Bisping GmbH & Co KG	`3.79ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m11 210.51.32.145

traceroute to 210.51.32.145 (210.51.32.145): 11 hops max, 52 byte packets

1 [AS4837] 122.114.171.254 0.325 ms

2 *

3 *

4 [AS4837] 115.60.218.213 0.779 ms

5 [AS4837] 61.168.37.89 2.49 ms

6 *

7 *

8 [AS138421] 220.196.252.170 20.802 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Zhengzhou, CN

On September 4th 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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