203.21.4.0/24

AS216053 · Data Cloud Technology d.o.o Kragujevac

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Summary

Country	Serbia
Domain	dct.rs
ASN	AS216053
Registry	RIPE
ID	DCT-IP-RANGE

WHOIS Details

inetnum:        203.21.4.0 - 203.21.4.255
netname:        dct-ip-range
country:        RS
org:            ORG-DCTD1-RIPE
sponsoring-org: ORG-MW1-RIPE
admin-c:        OTN7-RIPE
admin-c:        DA10531-RIPE
tech-c:         OTN7-RIPE
abuse-c:        AA42298-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ORIONTELEKOM-MNT
created:        2023-10-23T14:30:52Z
last-modified:  2023-11-24T09:53:04Z
source:         RIPE
abuse-email:    abuse@dct.rs
abuse-c:        AA42298-RIPE
abuse-org:      ORG-MW1-RIPE

organisation:   ORG-DCTD1-RIPE
org-name:       Data Cloud Technology d.o.o Kragujevac
country:        RS
org-type:       OTHER
address:        Save Kovacevica 35b
e-mail:         podrska@dct.rs
abuse-c:        AA41982-RIPE
mnt-ref:        ORIONTELEKOM-MNT
mnt-by:         ORIONTELEKOM-MNT
mnt-by:         dct_stevan_petrovic-MNT
mnt-by:         dct_lazar_stamenkovic-MNT
created:        2023-09-12T13:54:58Z
last-modified:  2025-05-22T11:28:54Z
source:         RIPE
abuse-email:    podrska@dct.rs
abuse-c:        AA41982-RIPE
abuse-org:      undefined

role:           DCT-admin
address:        Save Kovacevica 35
e-mail:         ripeadmin@dct.rs
nic-hdl:        DA10531-RIPE
mnt-by:         ORIONTELEKOM-MNT
mnt-by:         dct_stevan_petrovic-MNT
mnt-by:         dct_lazar_stamenkovic-MNT
created:        2023-11-24T09:52:19Z
last-modified:  2025-05-22T11:29:05Z
source:         RIPE

role:           Orion Telekom NOC
address:        Orion Telekom
address:        Gandijeva 76a, Belgrade, Serbia
phone:          +381 11 2228 388
fax-no:         +381 11 2228 334
e-mail:         noc.ip@oriontelekom.rs
remarks:        *******************************************************************
remarks:        Please send abuse reports to abuse@oriontelekom.rs
remarks:        *******************************************************************
abuse-mailbox:  abuse@oriontelekom.rs
admin-c:        DS20416-RIPE
tech-c:         DS20416-RIPE
tech-c:         VT3730-RIPE
tech-c:         NM8622-RIPE
nic-hdl:        OTN7-RIPE
mnt-by:         ORIONTELEKOM-MNT
created:        2010-09-17T11:01:42Z
last-modified:  2022-07-01T08:44:36Z
source:         RIPE

route:          203.21.4.0/24
origin:         AS216053
mnt-by:         ORIONTELEKOM-MNT
created:        2023-11-24T09:01:53Z
last-modified:  2023-11-24T09:01:53Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 203.21.0.0/16

Range	ASN	Company	Num of IPs
203.21.112.0/21	AS133612	VODAFONE AUSTRALIA PTY LIMITED	2,048
203.21.24.0/21	AS703	Verizon Australia PTY Limited	2,048
203.21.140.0/22	AS135409	Kacific Broadband Satellites Pte Ltd	1,024
203.21.108.0/22	AS133612	VODAFONE AUSTRALIA PTY LIMITED	1,024
203.21.150.0/23	AS137896	Hunter Water Corporation	512
203.21.128.0/23	AS2764	St. Vincent's Health & Aged Care Ltd.	512
203.21.130.0/23	AS10148	The University of Melbourne	512
203.21.42.0/23	AS56118	47/111 Tiwanon Road	512
203.21.76.0/23	AS38549	Viewbank Rise Networks	512
203.21.66.0/24	AS209854	Cyberzone S.A.	256
203.21.7.0/24	AS24448	Synamedia Technologies (India) Private Limited	256
203.21.79.0/24	AS2764	First Linear	256
203.21.72.0/24	AS395793	Mistic Internet Security Pty Ltd	256
203.21.125.0/24	AS45671	MailGuard Pty. Ltd.	256
203.21.20.0/24	AS4739	iiNet Limited	256
203.21.134.0/24	AS58716	Penrith City Council	256
203.21.5.0/24	AS7545	Micronica	256
203.21.78.0/24	AS7545	iiNet Limited	256
203.21.121.0/24	AS7575	Universities Australia	256
203.21.37.0/24	AS7575	Australian Academic and Research Network	256
203.21.83.0/24	AS7647	OnTheNet Pty Ltd	256
203.21.95.0/24	AS9009	Formosa Sydney Pty Limited	256
203.21.22.0/24	AS9266	Fiveways International Limited	256
203.21.207.0/24	AS10143	Infinet Group Pty Ltd	256
203.21.12.0/24	AS9650	CITEC	256
203.21.9.0/24	AS10143	OCTEC Incorporated	256
203.21.40.0/24	AS133015	City of Stirling	256
203.21.140.0/24	AS135409	Western Samoa Pool	256
203.21.65.0/24	AS154329	Phoenix Business Solutions Australia Pty Ltd	256
203.21.120.0/24	AS17882	Univision LLC	256
203.21.21.0/24	AS17889	Intraceptives Pty Ltd	256
203.21.104.0/24	AS18986	Calligo (Canada) Inc.	256
203.21.47.0/24	AS18986	Calligo (Canada) Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.21.4.33	AS216053 Data Cloud Technology d.o.o Kragujevac	`1.82ms` from Belgrade, RS

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
34.249.32.152	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
185.115.197.120	AS35180 Broadsoft LTD	`0.65ms` from Frankfurt am Main, DE
187.201.156.88	AS8151 UNINET	`1.11ms` from Guadalajara, MX
223.16.134.104	AS9304 HGC Global Communications Limited	`1.14ms` from Hong Kong, HK
153.5.79.200	AS2107 ARNES	`0.57ms` from Ljubljana, SI
27.109.132.104	AS4609 Companhia de Telecomunicacoes de Macau SARL	`1.33ms` from Macau, MO
95.236.156.200	AS3269 Telecom Italia S.p.A.	`1.75ms` from Milan, IT
88.54.149.56	AS3269 Telecom Italia S.p.A.	`0.86ms` from Milan, IT
3.108.127.104	AS16509 Amazon.com, Inc.	`0.12ms` from Mumbai, IN
14.72.205.56	AS4766 Korea Telecom	`2.44ms` from Seoul, KR
42.188.71.136	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`6.77ms` from Singapore, SG
77.174.168.248	AS1136 KPN B.V.	`1.37ms` from Amsterdam, NL
20.31.63.88	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
82.119.201.200	AS5650 Frontier Communications of America, Inc.	`0.46ms` from Ashburn, US
52.224.104.232	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
78.166.196.152	AS9121 Turk Telekomunikasyon Anonim Sirketi	`11.38ms` from Bursa, TR
106.197.26.8	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`11.11ms` from Chennai, IN
199.27.65.56	AS40608 HERSHEY COOPERATIVE TELEPHONE CO	`7.93ms` from Denver, US
154.30.135.248	AS395111 KVCHOSTING.COM LLC	`0.20ms` from Durham, US
74.241.210.232	AS8075 Microsoft Corporation	`0.22ms` from Gaevle, SE
205.198.26.88	AS133847 Anpple Tech Enterprise	`0.26ms` from Hong Kong, HK
88.95.239.40	AS2119 Telenor Norge AS	`7.18ms` from Oslo, NO
124.129.129.200	AS4837 CHINA UNICOM China169 Backbone	`1.68ms` from Qingdao, CN
64.161.113.104	AS7018 AT&T Enterprises, LLC	`1.60ms` from San Jose, US
182.221.99.40	AS17858 LG POWERCOMM	`3.61ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f3 203.21.4.50

traceroute to 203.21.4.50 (203.21.4.50): 64 hops max, 52 byte packets

3 [] 37.120.128.190 4.308 ms

4 [AS216053] 203.21.4.50 2.156 ms

Measurement taken from

IPinfo ProbeNet in Belgrade, RS

On February 7th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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