203.142.40.0/24

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 203.142.40.0/24

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
203.142.128.0/19	AS9443	VOCUS PTY LTD	8,192
203.142.160.0/19	AS17608	ABN	8,192
203.142.32.0/19	AS24028	Internet Service Provider, Malaysia	8,192
203.142.192.0/20	AS24282	KAGOYA JAPAN Inc.	4,096
203.142.208.0/21	AS24282	KAGOYA JAPAN Inc.	2,048
203.142.16.0/21	AS9892	Iconz-Webvisions Pte. Ltd.	2,048
203.142.88.0/21	AS24334	CIS Campus Network	2,048
203.142.44.0/22	AS24028	IP for REDtone CNX customer	1,024
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
203.142.52.0/22	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
203.142.74.0/24	AS17451	Biznet Postpaid	256
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
203.142.80.0/24	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
203.142.72.0/24	AS17451	Biznet Postpaid	256
203.142.73.0/24	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

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

IP Address	ASN	Details
203.142.40.89	AS24028 REDtone	`0.59ms` 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
192.95.38.104	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
50.127.67.200	AS5650 Frontier Communications of America, Inc.	`7.52ms` from Chicago, US
40.138.228.248	AS7029 Windstream Communications LLC	`0.52ms` from Chicago, US
76.88.139.56	AS20001 Charter Communications Inc	`5.37ms` from Honolulu, US
220.165.196.88	AS4134 CHINANET-BACKBONE	`1.49ms` from Kunming, CN
107.21.50.56	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
43.175.8.88	AS139341 ACE	`0.20ms` from São Paulo, BR
39.152.227.216	AS56044 China Mobile communications corporation	`6.55ms` from Tieling, CN
196.186.106.56	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`18.51ms` from Tunis, TN
35.206.188.120	AS15169 Google LLC	`0.17ms` from Brussels, BE
47.45.167.200	AS33588 Charter Communications LLC	`6.83ms` from Denver, US
122.157.45.200	AS4837 CHINA UNICOM China169 Backbone	`9.13ms` from Harbin, CN
51.107.42.104	AS8075 Microsoft Corporation	`0.17ms` from Kloten, CH
61.178.139.56	AS4134 CHINANET-BACKBONE	`6.74ms` from Lanzhou, CN
88.14.34.8	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.09ms` from Madrid, ES
64.59.206.40	AS400405 Fort Dodge Fiber	`6.86ms` from Minneapolis, US
124.170.59.216	AS7545 TPG Telecom Limited	`1.69ms` from Perth, AU
191.5.20.168	AS263077 RazaoInfo Internet Ltda	`6.87ms` from Porto Alegre, BR
60.215.187.152	AS4837 CHINA UNICOM China169 Backbone	`5.64ms` from Qingdao, CN
109.207.190.88	AS47438 Pskovline Ltd.	`4.99ms` from Saint Petersburg, RU
189.160.162.168	AS8151 UNINET	`12.17ms` from Santiago de Queretaro, MX
187.65.164.8	AS28573 Claro NXT Telecomunicacoes Ltda	`18.90ms` from Sao Paulo, BR
175.248.138.168	AS4766 Korea Telecom	`5.43ms` from Seoul, KR
52.197.60.40	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
102.26.122.24	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`12.10ms` from Tunis, TN

Traceroute

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

traceroute -a -n -q1 -f4 203.142.40.81

traceroute to 203.142.40.81 (203.142.40.81): 64 hops max, 52 byte packets

4 [] 218.100.44.76 0.635 ms

5 *

6 [AS24028] 203.142.40.81 3.285 ms

Measurement taken from

IPinfo ProbeNet in Kuala Lumpur, MY

On February 7th 2026

What are IP address ranges?

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