124.251.192.0/18

AS23724  ·  IDC, China Telecommunications Corporation

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Summary

Country China
Domain 21vianet.com
ASN AS23724
Parent Range 124.251.0.0/16
Registry APNIC
ID CHINA-21VIANET

WHOIS Details

inetnum:        124.251.0.0 - 124.251.255.255
netname:        CHINA-21VIANET
descr:          21ViaNet(China),Inc.
descr:          BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,
descr:          Beijing 100016, China
country:        CN
admin-c:        ML2382-AP
tech-c:         BW667-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-lower:      MAINT-CN-21VIANET
mnt-routes:     MAINT-CNNIC-AP
mnt-irt:        IRT-CNNIC-CN
last-modified:  2021-06-16T01:30:23Z
source:         APNIC

irt:            IRT-CNNIC-CN
address:        Beijing, China
e-mail:         ipas@cnnic.cn
abuse-mailbox:  ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
auth:           # Filtered
remarks:        Please note that CNNIC is not an ISP and is not
remarks:        empowered to investigate complaints of network abuse.
remarks:        Please contact the tech-c or admin-c of the network.
remarks:        ipas@cnnic.cn is invalid
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-17T23:08:37Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Cao Wentao
address:        BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,Beijing 100016, China
country:        CN
phone:          +86-10-84562121
fax-no:         +86-10-84564234
e-mail:         abusemail1010@sina.com
nic-hdl:        BW667-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-12-26T06:30:02Z
source:         APNIC

person:         Li  Xuesong
address:        BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,Beijing 100016, China
country:        CN
phone:          +86-10-84562121
fax-no:         +86-10-84564234
e-mail:         abuse@21viamail.com
nic-hdl:        ML2382-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-12-26T06:30:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 124.251.192.0/18

Range ASN Company Num of IPs
124.251.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS4835 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS9802 21ViaNet(China),Inc. 65,536
124.250.0.0/15 AS23724 21ViaNet(China),Inc. 131,072

Nearby Ranges

BGP prefixes that overlap with 124.251.0.0/16

Range ASN Company Num of IPs
124.250.0.0/15 AS23724 21ViaNet(China),Inc. 131,072
124.251.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS4835 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
124.251.0.0/16 AS9802 21ViaNet(China),Inc. 65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

Pingable IPs

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

IP Address ASN Details
124.251.237.5 AS9802 Abitcool(China) Inc. 3.46ms from Beijing, CN
124.251.253.46 AS23724 IDC, China Telecommunications Corporation 3.05ms from Tianjin, CN
124.251.252.11 AS4835 China Telecom (Group) 5.57ms from Beijing, CN
124.251.229.5 AS9308 Abitcool(China) Inc. 2.73ms from Tianjin, CN
124.251.240.5 AS9802 Abitcool(China) Inc. 3.16ms from Beijing, CN
124.251.230.5 AS9308 Abitcool(China) Inc. 3.37ms from Tianjin, CN
124.251.244.5 AS9308 Abitcool(China) Inc. 3.71ms from Beijing, CN
124.251.231.5 AS9308 Abitcool(China) Inc. 1.70ms from Tianjin, CN
124.251.238.5 AS9802 Abitcool(China) Inc. 4.76ms from Beijing, CN
124.251.249.189 AS23724 IDC, China Telecommunications Corporation 4.55ms from Tianjin, CN
124.251.241.110 AS4835 China Telecom (Group) 8.80ms from Taiyuan, CN
124.251.251.5 AS23724 IDC, China Telecommunications Corporation 2.81ms from Tianjin, CN
124.251.239.5 AS9802 Abitcool(China) Inc. 4.53ms from Beijing, CN
124.251.243.21 AS9308 Abitcool(China) Inc. 2.76ms from Beijing, CN
124.251.214.1 AS23724 IDC, China Telecommunications Corporation 4.48ms from Beijing, CN
124.251.255.153 AS23724 IDC, China Telecommunications Corporation 2.73ms from Tianjin, 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
206.189.2.178 AS14061 DigitalOcean, LLC 0.22ms from Amsterdam, NL
35.92.45.98 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
200.251.159.50 AS4230 CLARO S.A. 16.00ms from Brasilia, BR
89.134.36.226 AS21334 One Hungary Ltd. 12.96ms from Budapest, HU
161.184.12.18 AS852 TELUS Communications Inc. 3.08ms from Calgary, CA
196.115.205.34 AS36925 MEDITELECOM 2.50ms from Casablanca, MA
113.240.75.242 AS63835 CT-HuNan-Changsha-IDC 1.01ms from Changsha, CN
61.188.88.18 AS4134 CHINANET-BACKBONE 5.67ms from Chengdu, CN
188.115.157.50 AS6876 TENET Scientific Production Enterprise LLC 3.45ms from Chisinau, MD
201.16.251.242 AS16735 ALGAR TELECOM S/A 0.51ms from Curitiba, BR
128.203.179.210 AS8075 Microsoft Corporation 0.19ms from Des Moines, US
91.22.175.242 AS3320 Deutsche Telekom AG 4.29ms from Duesseldorf, DE
218.108.205.34 AS24139 Huashu media&Network Limited 5.39ms from Hangzhou, CN
12.5.36.2 AS7018 AT&T Enterprises, LLC 2.80ms from Los Angeles, US
178.251.76.50 AS47217 Planetel SPA 1.32ms from Milan, IT
71.66.178.210 AS10796 Charter Communications Inc 4.74ms from Milwaukee, US
115.28.33.194 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.20ms from Qingdao, CN
117.213.234.146 AS9829 National Internet Backbone 13.91ms from Saint Thomas Mount, IN
191.61.29.114 AS4230 CLARO S.A. 1.33ms from Sao Paulo, BR
119.223.196.82 AS4766 Korea Telecom 5.43ms from Seoul, KR
119.196.77.18 AS4766 Korea Telecom 1.12ms from Seoul, KR
92.32.87.194 AS8434 Telenor Sverige AB 6.58ms from Stockholm, SE
27.92.36.130 AS2516 KDDI CORPORATION 1.33ms from Tokyo, JP
37.222.224.162 AS12430 VODAFONE ESPANA S.A.U. 10.04ms from Barcelona, ES
41.238.234.162 AS8452 TE-AS 5.66ms from Cairo, EG

Traceroute

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

$
traceroute -a -n -q1 -f6 -m18 124.251.227.117
traceroute to 124.251.227.117 (124.251.227.117): 18 hops max, 52 byte packets
6 [AS3356] 4.69.219.61 69.216 ms
7 [AS3356] 4.15.125.54 68.275 ms
8 *
9 *
10 *
11 [AS23724] 36.110.246.2 228.938 ms
12 *
13 *
14 [AS23724] 36.110.134.34 227.52 ms
15 [AS23724] 220.181.10.142 228.267 ms
16 *
17 *
18 *
Measurement taken from IPinfo ProbeNet in Piscataway, US
On

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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