ASN database

You may find these sub-pages interesting as well:

Related tools

DNS lookup / nslookup / DIG of DNS records. An online tool for DNS lookups. By default recursive lookups querying the authoritative name servers. Lookups on specific DNS resolvers are also possible. Additionally, it will look up secondary records and output a full log of what was done on a technical level.

WHOIS / RDAP lookup

Perform WHOIS and/or RDAP lookups on domains, IP addresses, and ASNs. Will output all available technical info, contact info, etc.

Perform reverse DNS (rDNS/PTR) lookups of any IP.

CIDR calculator

IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.

What is my IPv4 and IPv6?

Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.

Online tool GeoIP location of any IP and/or domain.

World map, day/night + local time

Beautiful day/night map of the world, with markup of all major cities including local date and time.

Result

AS23771, IRT-CN-CN

Last update of data:
07-05-2024 06:17 UTC

ASN:

AS23771 (SXBCTV-AP)

Country:

CN - China (Asia)

Org.:

IRT-CN-CN

Stats:

Peers

5

IX'es

-

Prefixes

9

IPv4

+505K

IPv6

-

Contact:

IRT-CNNIC-CN
Beijing, China
ipas@cnnic.cn
ipas@cnnic.cn

History

Date

Peers

IX'es

Prefixes

IPv4

IPv6

Before 16-01-2024

3

-

9

+505K

-

16-01-2024

+1

-

-

-

-

07-05-2024

+1

-

-

-

-

Current

5

-

9

+505K

-

Peers

Country

Relationship

ASN

Organization

Peers

Prefix'es

China

Upstream

China Broadcasting Network Co., Ltd

24

9

China

Upstream

China Telecom (Group)

3

61

China

Upstream

CHINA UNICOM China169 Backbone

136

1.270

China

Upstream

52

191

Hong Kong

Upstream

China Unicom (Hong Kong) Operations Limited

465

63

Announced (uniq) prefixes

Country

ASN

Announced prefix

Description

Size

China

SHANXI NETWORK INTERMEDIARY CO.,LTD

1.024

China

103.197.228.0/22

SHANXI NETWORK INTERMEDIARY CO.,LTD

1.024

China

SHANXI NETWORK INTERMEDIARY CO.,LTD

131.072

China

SHANXI NETWORK INTERMEDIARY CO.,LTD

16.384

China

IRT-CN-CN

65.536

China

SHANXI NETWORK INTERMEDIARY CO.,LTD

262.144

China

202.150.16.0/20

SHANXI NETWORK INTERMEDIARY CO.,LTD

4.096

China

203.152.64.0/19

SHANXI NETWORK INTERMEDIARY CO.,LTD

8.192

China

210.87.128.0/18

SHANXI NETWORK INTERMEDIARY CO.,LTD

16.384

Log

000	+000	Parse input (ASN)
000	+000	Search database for 'AS23771'
003	+002	1 ASN's found
003	+000	Done
003	+000	Load details of AS23771
007	+005	9 prefixes found
013	+005	5 peers found
017	+004	No matching IX connections found!
020	+003	3 historical items loaded
020	+000	Done

Changelog

Newsletter

Bi-weekly (at most) with updates, changelog and info from the website. Just straight to the point info - no BS! Sign up right here, or read more about the iamroot.tech newsletter.

Signup using Google

Signup using Github

Other options: Signup using Microsoft or Signup using Facebook.

OR

No personal information gathered anywhere. E-mail may be used for login and/or newsletter - will not be sold or used by anyone else but iamroot.tech. Cookies are in use for statistical and useability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.

iamrootdottech@gmail.com
Bundgaard - Løvenørnsgade 56, 2tv - DK-8700 Horsens - Denmark

Shoutouts and credits to: Bootstrap, jQuery, Bootstrap live customizer by Virtuosoft, DnsClient.NET by MichaCo, LazyLoad by Mika Tuupola, the Olson tz database by IANA, Visible earth by NASA, GeoLite2 by MaxMind, Barcoder by Wouter Huysentruit, ICONS8.
json-viewer by alenaksu.

iamrootdottech@gmail.com
Bundgaard - Løvenørnsgade 56, 2tv - DK-8700 Horsens - Denmark

No personal information gathered anywhere. E-mail may be used for login and/or newsletter - will not be sold or used by anyone else but iamroot.tech. Cookies are in use for statistical and useability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.