ASN Lookup Tool

Coretel Networks International Pte Ltd coretelnet.com SG SG 27 Routes

AS Data

AS133748

AS133748Coretel Networks International Pte Ltd

AS Number 133748
AS Name CORETELNET-AS-AP
Organization Coretel Networks International Pte Ltd (org-cnpl1-ap)
Country SG
Website coretelnet.com
Number of IPv4 Routes 22
Number of IPv6 Routes 5
ASN type ISP
Registry APNIC
Date Allocated N/A

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Use ASN data for AS133748 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
206.131.197.0/24 256
43.249.250.0/24 256
156.225.48.0/24 256
206.131.205.0/24 256
206.131.195.0/24 256
2401:b080:651::/48 ~1×10²⁴
103.41.128.0/24 256
206.131.206.0/24 256
43.249.251.0/24 256
2401:b080:652::/48 ~1×10²⁴

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS133632 - AS134556'

as-block:       AS133632 - AS134556
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2014-09-03T01:31:49Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS133748'

% Abuse contact for 'AS133748' is 'ABUSE@CORETELNET.COM'

aut-num:        AS133748
as-name:        CORETELNET-AS-AP
descr:          CORETEL NETWORKS (INTERNATIONAL) PTE LTD
country:        SG
org:            ORG-CNPL1-AP
admin-c:        CI101-AP
tech-c:         CI101-AP
abuse-c:        AC1686-AP
notify:         HUGO@CORETELNET.COM
mnt-lower:      MAINT-CORETELNET-SG
mnt-routes:     MAINT-CORETELNET-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-CORETELNET-SG
last-modified:  2020-07-07T04:55:57Z
source:         APNIC

irt:            IRT-CORETELNET-SG
address:        60 Paya Lebar Road
e-mail:         ABUSE@CORETELNET.COM
abuse-mailbox:  ABUSE@CORETELNET.COM
admin-c:        CI101-AP
tech-c:         CI101-AP
auth:           # Filtered
remarks:        abuse@coretelnet.com
remarks:        abuse@coretelnet.com was validated on 2026-03-10
mnt-by:         MAINT-CORETELNET-SG
last-modified:  2026-03-10T13:12:02Z
source:         APNIC

organisation:   ORG-CNPL1-AP
org-name:       Coretel Networks (International) Pte Ltd
org-type:       LIR
country:        SG
address:        60 Paya Lebar Road # 11-05
address:        Paya Lebar Square
phone:          +65-6887-4261
fax-no:         +65-6887-4376
e-mail:         noc@coretelnet.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:27Z
source:         APNIC

role:           ABUSE CORETELNETSG
country:        ZZ
address:        60 Paya Lebar Road
phone:          +000000000
e-mail:         ABUSE@CORETELNET.COM
admin-c:        CI101-AP
tech-c:         CI101-AP
nic-hdl:        AC1686-AP
remarks:        Generated from irt object IRT-CORETELNET-SG
remarks:        abuse@coretelnet.com was validated on 2026-03-10
abuse-mailbox:  ABUSE@CORETELNET.COM
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-10T13:12:25Z
source:         APNIC

person:         CORETELNET IPNOC
address:        6 TEMASEK BOULEVARD #42-03 SUNTEC TOWER 4 SINGAPORE 038986
country:        SG
phone:          +65-68874261
e-mail:         NOC@CORETELNET.COM
nic-hdl:        CI101-AP
mnt-by:         MAINT-CORETELNET-SG
last-modified:  2015-07-09T08:20:25Z
source:         APNIC

% Information related to 'AS133632 - AS134556'

as-block:       AS133632 - AS134556
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-16T13:21:12Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS3491 PCCW Global HK
AS24482 SG.GS SG
AS9002 RETN Limited GB
AS3491 PCCW Global HK Limited HK
AS57304 JSC RetnNet RU
AS132829 Nevigate Communications S Pte Ltd SG
AS132829 Nevigate Communications (S) Pte Ltd SG
AS21859 Zenlayer Inc US
AS57304 JSC "RetnNet" RU
AS8888 xTom Pty Ltd AU

Upstreams

AS Number Description Country
AS24482 SG.GS SG
AS9002 RETN Limited GB
AS3491 PCCW Global HK Limited HK
AS57304 JSC RetnNet RU
AS132829 Nevigate Communications S Pte Ltd SG
AS21859 Zenlayer Inc US
AS8888 xTom Pty Ltd AU
AS138678 Grandbo Technology Development Corporation PH

Contacts

Legacy Routes

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Frequently Asked Questions

ASN AS133748 is an Autonomous System Number used to identify a network for BGP internet routing.
AS133748 is listed under Coretel Networks International Pte Ltd.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.