37.221.91.0/24

AS201730 · DataSpring

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Summary

Country	Czechia
Domain	dataspring.cz
ASN	AS201730
Parent Range	37.221.88.0/22
Registry	RIPE
ID	DATASPRING_DDOS_PROTECTION_TEST04

WHOIS Details

inetnum:        37.221.91.0 - 37.221.91.255
netname:        DataSpring_DDoS_protection_test04
country:        CZ
admin-c:        DASP-RIPE
tech-c:         DASP-RIPE
org:            ORG-CISS4-RIPE
status:         ASSIGNED PA
mnt-by:         DASP-MNT
created:        2019-07-17T16:09:57Z
last-modified:  2021-12-28T23:56:12Z
source:         RIPE
abuse-email:    abuse@autocont.cz
abuse-c:        ICT-RIPE
abuse-org:      ORG-CISS4-RIPE

organisation:   ORG-CISS4-RIPE
org-name:       Aricoma Systems a.s.
country:        CZ
org-type:       OTHER
address:        Vinohradska 1511/230
address:        100 00
address:        Prague 10
address:        CZECH REPUBLIC
phone:          +420 734649889
e-mail:         support@cloud4com.com
abuse-c:        ICT-RIPE
admin-c:        DASP-RIPE
admin-c:        CLHM-RIPE
tech-c:         DASP-RIPE
tech-c:         CLHM-RIPE
mnt-ref:        MNT-ICT
mnt-ref:        CLOUD4COM-ROOT-MNT
mnt-by:         MNT-ICT
created:        2014-07-22T09:54:36Z
last-modified:  2024-03-21T10:08:06Z
source:         RIPE

role:           DataSpring Hostmaster for AS201730
address:        Vinohradska 1511/230, Prague 10, 100 00
address:        Czech Republic
e-mail:         info@dataspring.cz
nic-hdl:        DASP-RIPE
admin-c:        JK11817-RIPE
admin-c:        FB17552-RIPE
admin-c:        AS44385-RIPE
tech-c:         JK11817-RIPE
tech-c:         FB17552-RIPE
tech-c:         AS44385-RIPE
mnt-by:         MNT-ICT
created:        2016-02-15T14:35:38Z
last-modified:  2021-12-28T23:35:07Z
source:         RIPE

route:          37.221.91.0/24
origin:         AS201730
descr:          DataSpring DDoS protection test
mnt-by:         DASP-MNT
created:        2019-07-17T15:57:49Z
last-modified:  2021-12-28T23:56:37Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 37.221.91.0/24

Range	ASN	Company	Num of IPs
37.221.88.0/22	AS201730	Cloud4com s.r.o.	1,024

Nearby Ranges

BGP prefixes that overlap with 37.221.0.0/16

Range	ASN	Company	Num of IPs
37.221.0.0/18	AS206065	Tose'h Fanavari Ertebabat Pasargad Arian Co. PJS	16,384
37.221.128.0/19	AS62384	Nataliya Vasylivna Protsykevych	8,192
37.221.144.0/20	AS62384	Radio Service Ltd.	4,096
37.221.240.0/20	AS204666	ISP Alliance a.s.	4,096
37.221.128.0/20	AS62384	Radio Service Ltd.	4,096
37.221.216.0/21	AS51514	Spotler Limited	2,048
37.221.232.0/21	AS198760	Quattre Internet SL	2,048
37.221.224.0/21	AS198965	itm8 Sverige AB	2,048
37.221.208.0/21	AS41075	ATW Internet Kft.	2,048
37.221.192.0/21	AS197540	netcup GmbH	2,048
37.221.88.0/22	AS201730	Cloud4com s.r.o.	1,024
37.221.120.0/22	AS210218	Open Fiber S.P.A.	1,024
37.221.100.0/22	AS198537	Kamil Turon trading as KAMNET	1,024
37.221.104.0/22	AS34244	Teleservice Bredband Skane AB	1,024
37.221.196.0/22	AS197540	netcup GmbH	1,024
37.221.192.0/22	AS197540	netcup GmbH	1,024
37.221.200.0/23	AS8492	OBIT Ltd.	512
37.221.82.0/23	AS49505	Riserank Sp. z o.o.	512
37.221.172.0/23	AS3223	The entire subnet is used for shared hosting by	512
37.221.77.0/24	AS211851	Web9 Bilisim ve Yazilim Hizmetleri	256
37.221.80.0/24	AS212667	Neleel LLC	256
37.221.111.0/24	AS30475	Beyond Tomorrow Ltd	256
37.221.110.0/24	AS33185	Beyond Tomorrow Ltd	256
37.221.117.0/24	AS35236	IXOXI s.r.o.	256
37.221.84.0/24	AS39305	MEDIA COMMUNICATION IDF S.A.R.L.	256
37.221.85.0/24	AS39305	MEDIA COMMUNICATION IDF S.A.R.L.	256
37.221.86.0/24	AS39305	MEDIA COMMUNICATION IDF S.A.R.L.	256
37.221.202.0/24	AS43370	OBIT-telecommunications, LLC	256
37.221.207.0/24	AS43370	OBIT-telecommunications, LLC	256
37.221.116.0/24	AS48131	IXOXI s.r.o.	256
37.221.68.0/24	AS49121	Infinity Telecom	256
37.221.69.0/24	AS49121	Infinity Telecom, s.r.o.	256
37.221.71.0/24	AS49121	Infinity Telecom, s.r.o.	256
37.221.92.0/24	AS49581	Ferdinand Zink trading as Tube-Hosting	256
37.221.94.0/24	AS49581	Ferdinand Zink trading as Tube-Hosting	256
37.221.108.0/24	AS53340	Beyond Tomorrow Ltd	256
37.221.78.0/24	AS57397	STERLY VERI MERKEZI YAZILIM VE SIBER GUVENLIK HIZMETLERI A.S.	256
37.221.187.0/24	AS58084	Newcontact Ltd	256
37.221.188.0/24	AS58084	Newcontact Ltd	256
37.221.189.0/24	AS58084	Newcontact Ltd	256
37.221.191.0/24	AS58084	Newcontact Ltd	256
37.221.93.0/24	AS58087	Datalix	256
37.221.180.0/24	AS60861	Redcat d.o.o. Podgorica	256
37.221.98.0/24	AS62007	MavianMax srl	256
37.221.203.0/24	AS8492	Obit, Ltd.	256
37.221.206.0/24	AS8492	Obit, Ltd.	256
37.221.112.0/24	AS9009	M247 Miami Infrastructure	256
37.221.113.0/24	AS9009	M247 LTD London Infrastructure	256
37.221.114.0/24	AS9009	M247 LTD Frankfurt Infrastructure	256
37.221.109.0/24	AS12129	Beyond Tomorrow Ltd	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Read more

Pingable IPs

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

IP Address	ASN	Details
37.221.91.255	AS201730 DataSpring	`0.54ms` from Prague, CZ

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
204.188.238.8	AS46844 Sharktech	`1.10ms` from Chicago, US
75.179.45.104	AS10796 Charter Communications Inc	`11.88ms` from Columbus, US
1.189.79.24	AS4837 CHINA UNICOM China169 Backbone	`4.13ms` from Harbin, CN
88.227.47.56	AS9121 Turk Telekomunikasyon Anonim Sirketi	`4.50ms` from Istanbul, TR
103.87.230.8	AS136088 PT. Araz Inti Line	`5.56ms` from Jakarta, ID
128.97.12.56	AS52 University of California, Los Angeles	`0.63ms` from Los Angeles, US
85.42.69.232	AS3269 Telecom Italia S.p.A.	`3.49ms` from Milan, IT
176.96.8.248	AS48515 Praktika Ltd.	`5.58ms` from Moscow, RU
79.30.29.200	AS3269 Telecom Italia S.p.A.	`13.01ms` from Naples, IT
153.130.78.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.78ms` from Osaka, JP
96.41.211.40	AS20115 Charter Communications LLC	`14.68ms` from Portland, US
13.223.177.120	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
79.19.150.120	AS3269 Telecom Italia S.p.A.	`4.85ms` from Rome, IT
52.52.80.184	AS16509 Amazon.com, Inc.	`0.16ms` from San Jose, US
49.23.167.104	AS4766 Korea Telecom	`1.46ms` from Seoul, KR
154.247.176.56	AS36947 Telecom Algeria	`13.61ms` from Algiers, DZ
174.100.213.56	AS10796 Charter Communications Inc	`7.54ms` from Cleveland, US
3.150.202.8	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
51.112.61.104	AS16509 Amazon.com, Inc.	`0.09ms` from Dubai, AE
34.247.238.104	AS16509 Amazon.com, Inc.	`0.13ms` from Dublin, IE
76.122.156.24	AS7922 Comcast Cable Communications, LLC	`8.26ms` from Flint, US
222.100.227.104	AS4766 Korea Telecom	`0.94ms` from Incheon, KR
77.98.21.232	AS5089 Virgin Media Limited	`10.33ms` from London, GB
24.168.2.24	AS12271 Charter Communications Inc	`1.67ms` from New York City, US
4.35.121.168	AS3356 Level 3 Parent, LLC	`0.93ms` from Philadelphia, US

Traceroute

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

traceroute -a -n -q1 -f2 37.221.91.255

traceroute to 37.221.91.255 (37.221.91.255): 64 hops max, 52 byte packets

2 [AS35592] 89.187.156.66 0.278 ms

3 [AS35592] 89.187.128.26 0.445 ms

4 *

5 *

6 [AS201730] 37.221.91.255 0.596 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On January 9th 2026

What are IP address ranges?

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