AS number details

AS15721

C.T.CO. Ltd.  ·  ctco.lv

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AS15721 – C.T.CO. Ltd.

Field Value
Country Latvia
Website ctco.lv
Hosted domains 1
Number of IPv4 2,048
Number of IPv6 0
ASN type Business
Registry ripe
Allocated 24 years ago on Dec 13, 2001
Updated 2 years ago on Oct 20, 2023
Netblock Company Num of IPs
217.21.168.0/21 C.T.Co Ltd 2,048
217.21.168.0/22 C.T.Co Ltd 1,024
217.21.172.0/22 C.T.Co Ltd 1,024

There are no known IPv6 addresses belonging to this network

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IP Ranges API

WHOIS Details


                                                ASHandle:       AS15721
                                                OrgID:          AS15721
                                                ASName:         AS15721
                                                ASNumber:       AS15721
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

IP Address Domain Domains on this IP
217.21.168.8 ██████████ 1

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Useful for Cybersecurity

Peers

There are 4 peers for this ASN.

Peers Name
AS12578 SIA Tet
AS197870 S.I.A."IBANPAY"
AS28886 RETN Limited
AS9002 RETN Limited
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS12578 SIA Tet
AS197870 S.I.A."IBANPAY"
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
217.21.174.248 AS15721 C.T.CO. Ltd. 0.63ms from Riga, LV
217.21.175.169 AS15721 C.T.CO. Ltd. 0.62ms from Riga, LV

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
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98.10.168.185 AS11351 Charter Communications Inc 18.20ms from Chicago, US
104.130.217.25 AS19994 Rackspace Hosting 1.24ms from Chicago, US
205.200.114.57 AS7122 Bell Canada 16.02ms from Chicago, US
64.244.51.57 AS25694 Atomic Data LLC 0.61ms from Dallas, US
75.71.201.9 AS7922 Comcast Cable Communications, LLC 6.29ms from Denver, US
89.100.116.201 AS6830 Liberty Global B.V. 0.48ms from Dublin, IE
62.27.151.201 AS12312 ecotel communication ag 5.29ms from Frankfurt am Main, DE
106.52.89.169 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.98ms from Guangzhou, CN
223.4.251.153 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.91ms from Hangzhou, CN
175.110.210.201 AS25019 Saudi Telecom Company JSC 2.87ms from Jeddah, SA
222.161.48.185 AS4837 CHINA UNICOM China169 Backbone 11.74ms from Liaoyang, CN
212.35.242.217 AS5413 Wavenet Limited 0.45ms from London, GB
31.37.223.105 AS5410 Bouygues Telecom SA 5.20ms from Marseille, FR
63.231.204.73 AS209 CenturyLink Communications, LLC 1.25ms from Minneapolis, US
84.150.192.25 AS3320 Deutsche Telekom AG 8.17ms from Nuernberg, DE
200.233.88.105 AS28220 Alares Cabo Servicos de Telecomunicacoes S.A. 6.01ms from Osasco, BR
50.168.97.41 AS7922 Comcast Cable Communications, LLC 11.16ms from Salt Lake City, US
76.14.116.105 AS11404 Wave Broadband 4.49ms from San Jose, US
189.108.93.201 AS10429 TELEFÔNICA BRASIL S.A 1.85ms from Sao Paulo, BR
184.69.140.153 AS6327 Shaw Communications Inc. 3.81ms from Seattle, US
211.174.233.233 AS4663 ELIMNET, INC. 3.14ms from Seoul, KR
118.40.245.73 AS4766 Korea Telecom 6.60ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -m8 217.21.168.246
traceroute to 217.21.168.246 (217.21.168.246): 8 hops max, 52 byte packets
2 *
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Riga, LV
On

Related Networks

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 AS15721 at robtex.

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