217.21.168.0/21

AS15721 · C.T.CO. Ltd.

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Summary

Country	Latvia
Domain	ctco.lv
ASN	AS15721
Registry	RIPE
ID	CTCO-SPEC

WHOIS Details

inetnum:        217.21.172.0 - 217.21.175.239
netname:        CTCO-SPEC
descr:          C.T.Co Ltd
country:        LV
admin-c:        CH951-RIPE
tech-c:         CH951-RIPE
status:         ASSIGNED PA
mnt-by:         CTCO-MNT
created:        2008-07-25T09:21:21Z
last-modified:  2008-07-25T10:03:32Z
source:         RIPE
abuse-email:    sysadmin@ctco.lv
abuse-c:        CAC84-RIPE
abuse-org:      ORG-CL2-RIPE

role:           CTCO Hostmaster
address:        Meistaru Street 33
address:        Valdlauchi, LV-1076, Latvia
phone:          +37166952059
e-mail:         sysadmin@ctco.lv
admin-c:        PG4602-RIPE
tech-c:         AS6824-RIPE
tech-c:         KR559-RIPE
nic-hdl:        CH951-RIPE
notify:         sysadmin@ctco.lv
mnt-by:         CTCO-MNT
created:        2003-04-10T15:06:48Z
last-modified:  2024-01-04T12:31:08Z
source:         RIPE

route:          217.21.172.0/22
origin:         AS15721
mnt-by:         CTCO-MNT
created:        2016-10-10T06:53:44Z
last-modified:  2016-10-10T06:54:15Z
source:         RIPE
descr:          CTCO-NET

Nearby Ranges

BGP prefixes that overlap with 217.21.0.0/16

Range	ASN	Company	Num of IPs
217.21.112.0/20	AS30844	Liquid Telecommunications Operations Limited	4,096
217.21.0.0/20	AS12975	Hadara Technologies Private Shareholding Company	4,096
217.21.128.0/20	AS48768	SED Multitel s.r.l.	4,096
217.21.80.0/20	AS47583	TerraTransit AG	4,096
217.21.16.0/20	AS12301	Szelmalom Kabelteve Zrt.	4,096
217.21.192.0/20	AS43366	OSSO B.V.	4,096
217.21.96.0/20	AS35140	JSC RACE TELECOM	4,096
217.21.176.0/20	AS34762	Combell NV	4,096
217.21.144.0/20	AS29238	Nisatel LTD	4,096
217.21.224.0/20	AS29672	S:t Erik Kommunikation AB	4,096
217.21.208.0/20	AS28775	OOO TRANSTELECOM	4,096
217.21.240.0/20	AS28878	Signet B.V.	4,096
217.21.120.0/21	AS30844	SME Client Block 4	2,048
217.21.112.0/21	AS30844	SME Client Block 3	2,048
217.21.76.0/22	AS47583	Hostinger International Limited	1,024
217.21.64.0/22	AS47583	Hostinger International Limited	1,024
217.21.68.0/22	AS47583	Hostinger International Limited	1,024
217.21.72.0/22	AS47583	Hostinger International Limited	1,024
217.21.40.0/23	AS44031	Netland ODO	512
217.21.35.0/24	AS212619	Sam Solutions	256
217.21.33.0/24	AS42772	A1 BLR VOKA Mogilev	256
217.21.46.0/24	AS42772	A1 network	256
217.21.48.0/24	AS42772	A1 network	256
217.21.51.0/24	AS42772	A1 network	256
217.21.54.0/24	AS42772	A1 network	256
217.21.59.0/24	AS42772	A1 network	256
217.21.60.0/24	AS42772	A1 network	256
217.21.45.0/24	AS210871	Virtual Photonics, Inc.	256
217.21.42.0/24	AS44031	Netland ODO	256
217.21.34.0/24	AS59861	Unitary Services Enterprise Urban Network System	256
217.21.57.0/24	AS60744	The Academic Scietific Complex	256
217.21.62.0/24	AS60744	The Academic Scietific Complex	256
217.21.36.0/24	AS21062	ANITEX Ltd.	256
217.21.47.0/24	AS208407	LLC BYCOM SYSTEMS	256
217.21.55.0/24	AS48347	BELPRIME	256
217.21.58.0/24	AS48347	BELPRIME	256
217.21.43.0/24	AS13171	Belarusian State University	256
217.21.136.0/24	AS48768	SED Multitel s.r.l.	256
217.21.138.0/24	AS48768	SED Multitel s.r.l.	256
217.21.139.0/24	AS48768	SED Multitel s.r.l.	256
217.21.141.0/24	AS48768	SED Multitel s.r.l.	256
217.21.142.0/24	AS48768	GTECH Italy	256
217.21.143.0/24	AS48768	GTECH Italy	256
217.21.38.0/24	AS49091	Telecom-garant Limited	256
217.21.39.0/24	AS49091	Telecom-garant Limited	256
217.21.37.0/24	AS50929	ISP Advanced Technology	256
217.21.50.0/24	AS51276	Netland ODO	256
217.21.53.0/24	AS56694	Netland ODO	256
217.21.44.0/24	AS56740	Netland ODO	256
217.21.52.0/24	AS56740	Netland ODO	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

11 IPs in this range 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.	`0.68ms` from Riga, LV
217.21.175.169	AS15721 C.T.CO. Ltd.	`0.69ms` 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
81.206.40.5	AS1136 KPN B.V.	`1.52ms` from Amsterdam, NL
197.52.178.165	AS8452 TE-AS	`6.43ms` from Cairo, EG
181.88.7.101	AS7303 Telecom Argentina S.A.	`3.20ms` from Cordoba, AR
110.81.89.197	AS4134 CHINANET-BACKBONE	`5.52ms` from Fuzhou, CN
218.6.73.165	AS4134 CHINANET-BACKBONE	`5.63ms` from Fuzhou, CN
147.135.183.197	AS16276 OVH SAS	`0.07ms` from Gravelines, FR
23.193.81.5	AS16625 Akamai Technologies, Inc.	`0.73ms` from Las Vegas, US
108.222.104.213	AS7018 AT&T Enterprises, LLC	`4.94ms` from Los Angeles, US
98.109.17.213	AS701 Verizon Business	`1.28ms` from New York City, US
173.63.70.101	AS701 Verizon Business	`1.26ms` from New York City, US
73.116.102.101	AS7922 Comcast Cable Communications, LLC	`4.59ms` from San Jose, US
153.145.189.5	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.50ms` from Tokyo, JP
204.232.229.117	AS27357 Rackspace Hosting	`0.53ms` from Ashburn, US
141.156.172.53	AS701 Verizon Business	`1.97ms` from Ashburn, US
52.225.134.21	AS8075 Microsoft Corporation	`0.16ms` from Boydton, US
222.178.147.165	AS4134 CHINANET-BACKBONE	`1.59ms` from Chongqing, CN
3.23.180.101	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
18.252.39.213	AS8987 Amazon Data Services Ireland Ltd	`0.89ms` from Columbus, US
1.212.251.53	AS3786 LG DACOM Corporation	`1.52ms` from Incheon, KR
92.22.154.69	AS13285 TalkTalk Communications Limited	`6.49ms` from London, GB
97.202.105.53	AS6167 Verizon Business	`17.01ms` from Los Angeles, US
188.127.177.165	AS15704 XTRA TELECOM S.A.	`1.20ms` from Madrid, ES
190.114.11.197	AS8100 QuadraNet Enterprises LLC	`0.32ms` from Miami, US
95.248.221.133	AS3269 Telecom Italia S.p.A.	`8.15ms` from Milan, IT
210.212.141.69	AS9829 National Internet Backbone	`13.58ms` from Mumbai, IN

Traceroute

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

traceroute -a -n -q1 -f2 -m7 217.21.172.204

traceroute to 217.21.172.204 (217.21.172.204): 7 hops max, 52 byte packets

2 [AS12578] 80.232.179.174 372.232 ms

3 [AS12578] 195.13.234.82 305.745 ms

4 [AS15721] 217.21.174.248 304.288 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On February 16th 2026

What are IP address ranges?

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