103.21.119.0/24

AS55994 · Shanghai ruisu Network Technology Co.,Ltd

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Summary

Country	China
Domain	51idc.com
ASN	AS55994
Parent Range	103.21.116.0/22
Registry	APNIC
ID	RUISU-51IDC

WHOIS Details

inetnum:        103.21.116.0 - 103.21.119.255
netname:        Ruisu-51IDC
descr:          Shanghai ruisu Network Technology Co.,Ltd
descr:          Building 4,intelligence industry park,
descr:          No.1 Hulan West Road,Shanghai
country:        CN
admin-c:        YW7308-AP
tech-c:         YW7187-AP
mnt-by:         MAINT-CNNIC-AP
mnt-lower:      MAINT-CNNIC-AP
mnt-irt:        IRT-51IDC-CN
mnt-routes:     MAINT-CNNIC-AP
status:         ALLOCATED PORTABLE
last-modified:  2023-12-27T06:10:19Z
source:         APNIC

irt:            IRT-51IDC-CN
address:        Building 4,intelligence industry park,
address:        No.1 Hulan West Road,Shanghai
e-mail:         yuhg@51idc.com
abuse-mailbox:  yuhg@51idc.com
admin-c:        YW7308-AP
tech-c:         YW7187-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:37:27Z
source:         APNIC

person:         Yu Huagang
address:        Building 4,intelligence industry park,
address:        No.1 Hulan West Road,Shanghai
country:        CN
phone:          +86-13818683083
e-mail:         yuhg@51idc.com
nic-hdl:        YW7187-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2023-12-27T06:11:46Z
source:         APNIC

person:         Zheng Xiaochuan
address:        Building 4,intelligence industry park,
address:        No.1 Hulan West Road,Shanghai
country:        CN
phone:          +86-18516630940
e-mail:         anch-resource@51idc.com
nic-hdl:        YW7308-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2023-12-27T06:07:15Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 103.21.119.0/24

Range	ASN	Company	Num of IPs
103.21.116.0/22	AS55994	Shanghai ruisu Network Technology Co.,Ltd	1,024
103.21.116.0/22	AS138950	Shanghai ruisu Network Technology Co.,Ltd	1,024

Nearby Ranges

BGP prefixes that overlap with 103.21.0.0/16

Range	ASN	Company	Num of IPs
103.21.132.0/22	AS38835	Buroserv Australia Pty Ltd	1,024
103.21.48.0/22	AS58750	ThinkEx Holdings Pty Ltd	1,024
103.21.128.0/22	AS58927	M.D.G. IT Pty Ltd	1,024
103.21.208.0/22	AS36352	Kaifeng Guochao E-commerce Co.Ltd.	1,024
103.21.176.0/22	AS9808	China Mobile Communications Corporation	1,024
103.21.216.0/22	AS9905	PT. LINKNET,	1,024
103.21.200.0/22	AS38091	LG HelloVision Corp.	1,024
103.21.0.0/22	AS38195	SUPERLOOP (AUSTRALIA) PTY LTD	1,024
103.21.148.0/22	AS38732	CMC Telecom Infrastructure Company	1,024
103.21.236.0/22	AS12886	LEW TelNet GmbH	1,024
103.21.120.0/22	AS131368	Petrovietnam oil corporation	1,024
103.21.116.0/22	AS138950	Shanghai ruisu Network Technology Co.,Ltd	1,024
103.21.60.0/22	AS131148	Bank Of Taiwan	1,024
103.21.252.0/22	AS131310	PLTPRO Data Centre Sdn. Bhd.	1,024
103.21.240.0/22	AS16509	Amazon Connection Technology Services (Beijing) Co., LTD	1,024
103.21.84.0/22	AS45786	PT Hawk Teknologi Solusi	1,024
103.21.204.0/22	AS131746	PT. Medianusa Permana	1,024
103.21.124.0/22	AS132423	Powai	1,024
103.21.152.0/22	AS24028	REDtone Marketing Sdn. Bhd.	1,024
103.21.140.0/22	AS4811	Shanghai Meicheng Technology Information Co.,Ltd.	1,024
103.21.140.0/22	AS4812	Shanghai Meicheng Technology Information Co.,Ltd.	1,024
103.21.8.0/22	AS26658	UNIT 04, 7/F, BRIGHT WA, NO. 33 MONG KOK rd, kl, HK	1,024
103.21.116.0/22	AS55994	Shanghai ruisu Network Technology Co.,Ltd	1,024
103.21.60.0/22	AS3462	Bank Of Taiwan	1,024
103.21.156.0/22	AS134141	B2B Wholesale Pty Ltd	1,024
103.21.40.0/22	AS58715	EarthTelcommunication	1,024
103.21.32.0/22	AS132434	Maxis Broadband Sdn Bhd	1,024
103.21.184.0/22	AS132453	TRIPLE PLAY BROADBAND PRIVATE LIMITED	1,024
103.21.58.0/23	AS394695	P.D.R Solutions FZC	512
103.21.70.0/23	AS150070	SPIRETEL TECHNOLOGIES PRIVATE LIMITED	512
103.21.18.0/23	AS58714	19th Floor, Tower C and D, Building No. 14, DLF Cyber City,	512
103.21.28.0/23	AS54187	Eze Castle Integration, Inc. - ECINet	512
103.21.100.0/23	AS140807	CUU LONG INTERNATIONAL DEVELOPMENT SERVICES AND TRADING JOINT STOCK COMPANY	512
103.21.96.0/23	AS140807	AN ANH PHONG COMPANY LIMITED	512
103.21.222.0/23	AS149829	Dream View Cable Network	512
103.21.68.0/23	AS136290	COUNTRY ONLINE SERVICES	512
103.21.6.0/23	AS150069	CLOUDNET INTERNET SERVICE PVT LTD	512
103.21.92.0/24	AS45295	PT. Cipta Informatika Cemerlang	256
103.21.180.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.182.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.181.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.183.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.85.0/24	AS45786	PT. Hawk Teknologi Solusi	256
103.21.87.0/24	AS45786	PT. Hawk Teknologi Solusi	256
103.21.84.0/24	AS45786	PT Hawk Teknologi Solusi	256
103.21.86.0/24	AS45786	PT. Hawk Teknologi Solusi	256
103.21.136.0/24	AS55933	ITAOYUN LIMITED	256
103.21.194.0/24	AS56030	46 Robins Road	256
103.21.41.0/24	AS58715	EarthTelcommunication	256
103.21.40.0/24	AS58715	EarthTelcommunication	256

Hosted domains

There are 13 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
103.21.119.68	yooacs.com	8
103.21.119.190	51idc.com	1
103.21.119.92	hito-marine.com	1
103.21.119.134	infomorrow.com	1
103.21.119.109	shjkdyf.com	1
103.21.119.137	juxinli.com	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

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

IP Address	ASN	Details
103.21.119.60	AS55994 Shanghai ruisu Network Technology Co.,Ltd	`3.65ms` from Nanjing, 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
186.19.10.72	AS27747 Telecentro S.A.	`4.99ms` from Buenos Aires, AR
203.99.144.216	AS137453 Orange Communication	`0.37ms` from Dhaka, BD
95.188.53.136	AS12389 PJSC Rostelecom	`0.73ms` from Krasnoyarsk, RU
172.118.99.248	AS20001 Charter Communications Inc	`5.74ms` from Los Angeles, US
87.217.42.136	AS12479 Orange Espagne SA	`1.90ms` from Madrid, ES
81.166.142.168	AS29695 Lyse Tele AS	`6.24ms` from Oslo, NO
188.51.4.24	AS25019 Saudi Telecom Company JSC	`4.00ms` from Riyadh, SA
104.214.57.232	AS8075 Microsoft Corporation	`0.18ms` from San Antonio, US
52.8.79.248	AS16509 Amazon.com, Inc.	`0.17ms` from San Jose, US
206.189.223.104	AS14061 DigitalOcean, LLC	`0.34ms` from Santa Clara, US
83.28.23.168	AS5617 Orange Polska Spolka Akcyjna	`15.63ms` from Warsaw, PL
84.227.223.88	AS6730 Sunrise GmbH	`0.92ms` from Zuerich, CH
74.110.222.216	AS701 Verizon Business	`5.03ms` from Ashburn, US
75.228.25.184	AS6167 Verizon Business	`16.16ms` from Atlanta, US
117.221.204.40	AS9829 National Internet Backbone	`11.99ms` from Bengaluru, IN
79.240.5.8	AS3320 Deutsche Telekom AG	`2.07ms` from Düsseldorf, DE
118.58.68.8	AS4766 Korea Telecom	`5.55ms` from Incheon, KR
125.134.102.56	AS4766 Korea Telecom	`6.62ms` from Incheon, KR
1.251.90.200	AS9318 SK Broadband Co Ltd	`7.06ms` from Incheon, KR
187.137.203.200	AS8151 UNINET	`19.93ms` from Los Angeles, US
185.251.60.136	AS204358 OPEN Dot Com S.p.a.	`5.07ms` from Milan, IT
73.188.243.248	AS7922 Comcast Cable Communications, LLC	`6.83ms` from New York City, US
5.75.190.72	AS24940 Hetzner Online GmbH	`0.19ms` from Nuernberg, DE
211.8.129.104	AS4725 SoftBank Corp.	`19.41ms` from Osaka, JP
163.5.141.8	AS200136 Association LibraHost	`0.46ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 103.21.119.9

traceroute to 103.21.119.9 (103.21.119.9): 64 hops max, 52 byte packets

1 [AS15169] 142.251.66.70 8.515 ms

2 *

3 [] 140.222.223.15 69.41 ms

4 [AS701] 157.130.230.26 70.521 ms

5 *

6 *

7 *

8 *

9 [AS138950] 58.215.35.114 247.422 ms

10 *

11 *

12 [AS138950] 221.228.101.153 249.01 ms

13 *

14 [AS55994] 103.21.119.9 257.106 ms

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On April 13th 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.

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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