203.142.51.0/24

AS24028 · REDtone

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Summary

Country	Malaysia
Domain	redtone.com
ASN	AS24028
Parent Range	203.142.32.0/19
Registry	APNIC
ID	RTC-NET

WHOIS Details

inetnum:        203.142.32.0 - 203.142.63.255
netname:        RTC-NET
descr:          Internet Service Provider, Malaysia
descr:          Suite 22-28, 5th Floor, IOI Business Park,
descr:          Puchong, Selangor, Malaysia
country:        MY
org:            ORG-RMSB1-AP
admin-c:        CN186-AP
tech-c:         CN186-AP
abuse-c:        AC2124-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-MY-REDTONE
mnt-routes:     MAINT-MY-REDTONE
mnt-irt:        IRT-CNX-MY
last-modified:  2020-09-09T00:06:13Z
source:         APNIC

irt:            IRT-CNX-MY
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
e-mail:         abuse@redtone.com
abuse-mailbox:  abuse@redtone.com
admin-c:        CN186-AP
tech-c:         CN186-AP
auth:           # Filtered
remarks:        abuse@redtone.com was validated on 2025-11-18
mnt-by:         MAINT-MY-CNX
last-modified:  2025-11-18T02:15:00Z
source:         APNIC

organisation:   ORG-RMSB1-AP
org-name:       Redtone Engineering & Network Services Sdn Bhd
org-type:       LIR
country:        MY
address:        Suite 22 - 30, 5th Floor,
address:        IOI Business Park,
phone:          +60380848888
fax-no:         +603-80732199
e-mail:         peering@redtone.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-16T12:56:01Z
source:         APNIC

role:           ABUSE CNXMY
country:        ZZ
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
phone:          +000000000
e-mail:         abuse@redtone.com
admin-c:        CN186-AP
tech-c:         CN186-AP
nic-hdl:        AC2124-AP
remarks:        Generated from irt object IRT-CNX-MY
remarks:        abuse@redtone.com was validated on 2025-11-18
abuse-mailbox:  abuse@redtone.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-18T06:07:56Z
source:         APNIC

role:           CNX NOC
address:        Suite 22-28, 5th floor,
address:        IOI Business Park,
address:        47100 Puchong,
address:        Selangor, Malaysia.
country:        MY
phone:          +60-3-80732288
fax-no:         +60-3-80732199
e-mail:         noc.broadband@redtone.com
admin-c:        CO93-AP
tech-c:         CO93-AP
tech-c:         LIY2-AP
nic-hdl:        CN186-AP
remarks:        For SPAM/ABUSE Issue: abuse@redtone.com
remarks:        For Network Related Issue: noc.broadband@redtone.com
notify:         noc.broadband@redtone.com
abuse-mailbox:  abuse@redtone.com
mnt-by:         MAINT-MY-CNX
last-modified:  2010-12-23T03:39:20Z
source:         APNIC

route:          203.142.32.0/19
descr:          CNX route object
origin:         AS24028
country:        MY
notify:         noc.broadband@redtone.com
mnt-by:         MAINT-MY-CNX
last-modified:  2010-09-28T06:56:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.142.51.0/24

Range	ASN	Company	Num of IPs
203.142.32.0/19	AS24028	Internet Service Provider, Malaysia	8,192

Nearby Ranges

BGP prefixes that overlap with 203.142.0.0/16

Range	ASN	Company	Num of IPs
203.142.32.0/19	AS24028	Internet Service Provider, Malaysia	8,192
203.142.128.0/19	AS9443	VOCUS PTY LTD	8,192
203.142.160.0/19	AS17608	ABN	8,192
203.142.192.0/20	AS24282	KAGOYA JAPAN Inc.	4,096
203.142.208.0/21	AS24282	KAGOYA JAPAN Inc.	2,048
203.142.88.0/21	AS24334	CIS Campus Network	2,048
203.142.16.0/21	AS9892	Iconz-Webvisions Pte. Ltd.	2,048
203.142.56.0/22	AS24028	IP for REDtone-CNX ADSL Customer	1,024
203.142.60.0/22	AS24028	IP for REDtone-CNX ADSL Customer	1,024
203.142.44.0/22	AS24028	IP for REDtone CNX customer	1,024
203.142.52.0/22	AS24028	IP for REDtone-CNX ADSL Customer	1,024
203.142.6.0/23	AS4769	Exa Bytes Network Sdn.Bhd.	512
203.142.24.0/23	AS14618	Nova Prospect Pte Ltd	512
203.142.75.0/24	AS17451	Biznet Postpaid	256
203.142.76.0/24	AS17451	Biznet Postpaid	256
203.142.77.0/24	AS17451	Biznet Postpaif	256
203.142.78.0/24	AS17451	Biznet Prepaid	256
203.142.79.0/24	AS17451	Biznet Postpaid	256
203.142.82.0/24	AS17451	Biznet Postpaid	256
203.142.84.0/24	AS17451	Biznet Postpaid	256
203.142.85.0/24	AS17451	Biznet Postpaid	256
203.142.87.0/24	AS17451	Biznet Postpaid	256
203.142.5.0/24	AS28447	ONFIBER SA DE CV	256
203.142.72.0/24	AS38060	Biznet Postpaid	256
203.142.80.0/24	AS38482	Biznet Postpaid	256
203.142.81.0/24	AS38482	Biznet Postpaid	256
203.142.83.0/24	AS38482	Biznet Postpaid	256
203.142.86.0/24	AS38482	Biznet Postpaid	256
203.142.220.0/24	AS45153	Sutherland Global Services Private Limited	256
203.142.222.0/24	AS45160	Lotteries Commission of Western Australia	256
203.142.221.0/24	AS45168	Norfolk Telecom, GBE	256
203.142.4.0/24	AS46015	Exa Bytes Network Sdn.Bhd.	256
203.142.7.0/24	AS4769	Co-location, Cloud & Dedicated Hosting	256
203.142.223.0/24	AS55366	BUPA Australia Health Pty Ltd	256
203.142.9.0/24	AS55736	Triforce Telecom Networks	256
203.142.218.0/24	AS58895	Style Of Global, IT Support and Services Company	256
203.142.10.0/24	AS135372	Columbia Sportswear Japan Inc	256
203.142.27.0/24	AS9892	Iconz-Webvisions Pte. Ltd.	256
203.142.8.0/24	AS136735	TRIFORCE SERVICES AUSTRALIA PTY LTD	256
203.142.26.0/24	AS139371	PT Bank Agris Tbk	256
203.142.64.0/24	AS17451	Biznet Postpaid	256
203.142.65.0/24	AS17451	Biznet Postpaid	256
203.142.66.0/24	AS17451	Biznet Postpaid	256
203.142.67.0/24	AS17451	Biznet Equinix	256
203.142.68.0/24	AS17451	Biznet Postpaid	256
203.142.69.0/24	AS17451	Biznet Postpaid	256
203.142.70.0/24	AS17451	Biznet Postpaid	256
203.142.71.0/24	AS17451	Biznet Postpaid	256
203.142.73.0/24	AS17451	Biznet Postpaid	256
203.142.74.0/24	AS17451	Biznet Postpaid	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

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

IP Address	ASN	Details
203.142.51.204	AS24028 REDtone	`1.35ms` from Kuala Lumpur, MY

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
8.140.161.56	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.08ms` from Beijing, CN
118.122.184.56	AS4134 CHINANET-BACKBONE	`4.77ms` from Chengdu, CN
92.196.215.72	AS20676 Plusnet GmbH	`5.13ms` from Duesseldorf, DE
87.167.6.200	AS3320 Deutsche Telekom AG	`8.70ms` from Frankfurt am Main, DE
140.240.254.136	AS4134 CHINANET-BACKBONE	`4.52ms` from Haikou, CN
211.37.64.248	AS9318 SK Broadband Co Ltd	`9.06ms` from Incheon, KR
188.231.72.184	AS44407 Linkt SAS	`0.95ms` from Paris, FR
189.238.205.168	AS8151 UNINET	`17.50ms` from Santiago de Queretaro, MX
172.192.38.248	AS8075 Microsoft Corporation	`0.17ms` from Tokyo, JP
3.209.60.8	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
171.103.155.216	AS7470 TRUE INTERNET Co.,Ltd.	`2.15ms` from Bangkok, TH
78.186.44.232	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.19ms` from Bursa, TR
68.147.193.152	AS6327 Shaw Communications	`12.50ms` from Calgary, CA
68.37.228.152	AS7922 Comcast Cable Communications, LLC	`8.74ms` from Flint, US
173.29.215.88	AS30036 Mediacom Communications Corp	`8.71ms` from Fremont, US
118.216.104.152	AS9318 SK Broadband Co Ltd	`4.70ms` from Incheon, KR
85.55.24.56	AS12479 Orange Espagne SA	`2.77ms` from Madrid, ES
76.18.218.168	AS7922 Comcast Cable Communications, LLC	`7.42ms` from Orlando, US
115.30.227.8	AS7522 STNet, Incorporated	`5.41ms` from Osaka, JP
112.251.180.232	AS4837 CHINA UNICOM China169 Backbone	`7.37ms` from Qingdao, CN
200.164.11.120	AS7738 V tal	`0.42ms` from São Paulo, BR
79.118.2.216	AS8708 DIGI ROMANIA S.A.	`2.46ms` from Timisoara, RO
126.13.128.88	AS17676 SoftBank Corp.	`3.31ms` from Tokyo, JP
115.61.103.136	AS4837 CHINA UNICOM China169 Backbone	`2.31ms` from Zhengzhou, CN
89.248.230.8	AS207353 Ruform LLC	`0.28ms` from Almaty, KZ

Traceroute

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

traceroute -a -n -q1 -f3 203.142.51.212

traceroute to 203.142.51.212 (203.142.51.212): 64 hops max, 52 byte packets

3 [AS24028] 103.21.152.2 163.054 ms

4 [AS24028] 203.142.51.212 166.632 ms

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On March 20th 2026

What are IP address ranges?

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