AS17428

Access unlimited lookups, API and downloads, data enrichment, and Probenet Live.

Summary

IP address summary information
Name	21Vianet.Co.,Ltd
Country	China
Website	host.io/21vianet.com·21vianet.com
Hosted domains	34
IPv4 addresses	10,496
IPv6 addresses	7.92 × 10²⁸
ASN type	Hosting
Registry	APNIC
Allocated	26 years ago on Oct 19, 2000
Updated	2 years ago on Nov 28, 2023

Ranking

#51,784

Overall rank

among 74,946 networks

Traffic

#49,750

Infrastructure

#13,078

#317inChina

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

China
100%

Held location over 90 days: 96%
Held location over 1 year: 96%
Median days between moves: 710 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
120.132.224.0/21	21Vianet.Co.,Ltd	2,048
120.133.240.0/21	21Vianet.Co.,Ltd	2,048
103.253.204.0/22	21Vianet.Co.,Ltd	1,024
120.133.240.0/22	21Vianet.Co.,Ltd	1,024
120.133.248.0/22	21Vianet.Co.,Ltd	1,024
120.133.252.0/22	21Vianet.Co.,Ltd	1,024
211.148.20.0/22	21Vianet.Co.,Ltd	1,024
120.132.224.0/23	21Vianet.Co.,Ltd	512
120.132.228.0/23	21Vianet.Co.,Ltd	512
120.132.230.0/23	21Vianet.Co.,Ltd	512

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 34 domain names hosted across 22 IP addresses on this ASN.

IP Address	Domain	Count
211.148.19.166		7
211.148.19.168		4
211.148.19.253		4
103.253.207.100		2
211.148.18.188		2

Places

Peers

There are 9 peers for this ASN.

ASN	Name	Rank
AS2914	NTT America, Inc.
AS4808	China Unicom Beijing Province Network
AS4811	China Telecom (Group)
AS4812	China Telecom (Group)
AS4847	China Networks Inter-Exchange
AS17622	China Unicom Guangzhou network
AS24400	Shanghai Mobile Communications Co.,Ltd.
AS56040	China Mobile communications corporation

Upstreams

There are 9 upstreams for this ASN.

ASN	Name	Rank
AS2914	NTT America, Inc.
AS4808	China Unicom Beijing Province Network
AS4811	China Telecom (Group)
AS4812	China Telecom (Group)
AS4847	China Networks Inter-Exchange
AS17622	China Unicom Guangzhou network
AS24400	Shanghai Mobile Communications Co.,Ltd.
AS56040	China Mobile communications corporation

Downstreams

There are 0 downstreams for this ASN.

No downstreams found.

Pingable IPs

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

IP Address	ASN	Details
120.133.241.173 Ping	AS1742821Vianet.Co.,Ltd	3.01ms from Shanghai, CN
182.175.127.1 Ping	AS1742821Vianet.Co.,Ltd	3.66ms from Beijing, CN
103.253.206.65 Ping	AS1742821Vianet.Co.,Ltd	5.21ms from Shanghai, CN
211.148.31.214 Ping	AS1742821Vianet.Co.,Ltd	2.45ms from Shanghai, CN
211.148.18.249 Ping	AS1742821Vianet.Co.,Ltd	2.61ms from Shanghai, CN
2403:a200:a100:1:0:1:0:4 Ping	AS1742821Vianet.Co.,Ltd	3.45ms from Shanghai, CN
211.148.22.130 Ping	AS1742821Vianet.Co.,Ltd	3.14ms from Shanghai, CN
2403:a200:a200:11c4::1a1 Ping	AS1742821Vianet.Co.,Ltd	2.07ms from Beijing, CN
120.133.240.4 Ping	AS1742821Vianet.Co.,Ltd	3.10ms from Shanghai, CN
211.148.30.254 Ping	AS1742821Vianet.Co.,Ltd	3.09ms from Shanghai, CN

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS17428


2403:a200:a200:5::6	Beijing, China
2403:a200:a200:5::11	Beijing, China
2403:a200:a200:9::41	Beijing, China
120.133.241.132	Shanghai, China
211.148.17.154	Shanghai, China
2403:a200:a200:9::5e	Beijing, China
2403:a200:a200:1082::a	Beijing, China
211.148.17.46	Shanghai, China
2403:a200:a200:2::2	Beijing, China
2403:a200:a200:1042::16	Beijing, China

Important routers in AS17428

Traceroute

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

$ traceroute -a -n -q1 -f8 211.148.19.201

traceroute to 211.148.19.201 (211.148.19.201): 64 hops max, 52 byte packets

8 [AS17428] 211.148.17.22 5.421 ms

9 *

10 [AS17428] 211.148.17.154 5.598 ms

11 [AS17428] 211.148.19.201 5.003 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On October 16, 2026

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS17428 at robtex.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get started for free Contact sales

Our IP tools

Explore all tools

What is my IP?

Test our data accuracy by viewing insights from your IP address.

See your IP address

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs

AS17428

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS17428

Important routers in AS17428

Traceroute

Related Networks

AS138365

AS140314

AS142754

AS142886

AS144402

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

Important routers in AS17428

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

IP Ranges

AS138365

AS140314

AS142754

AS142886

AS144402

AS144811