133748 CORETELNET-AS-AP CORETEL NETWORKS INTERNATIONAL PTE LTD, SG
Adjacency: 5 Upstream: 5 Downstream: 0
Upstream Adjacent AS list
AS21859 ZEN-ECN - Zenlayer Inc, US
AS3491 PCCWG-APAC-HK PCCW Global HK Ltd., HK
AS24482 SGGS-AS-AP SG.GS, SG
AS138678 GTDC-AS-AP Grandbo Technology Development Corporation, PH
AS9002 RETN-AS, GB
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 14582 AS133748 ORIGIN Originate: 5632 /19.54 Transit: 0 /0.00 CORETELNET-AS-AP CORETEL NETWORKS INTERNATIONAL PTE LTD, SG
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 17749 AS133748 CORETELNET-AS-AP CORETEL NETWORKS INTERNATION 22 4 2 20 2 9.09% Prefix AS Path Aggregation Suggestion 43.249.248.0/24 4777 2497 3491 133748 43.249.249.0/24 4777 2516 3491 133748 43.249.250.0/23 4777 2497 3491 133748 + Announce - aggregate of 43.249.250.0/24 (4777 2497 3491 133748) and 43.249.251.0/24 (4777 2497 3491 133748) 43.249.250.0/24 4777 2497 3491 133748 - Withdrawn - aggregated with 43.249.251.0/24 (4777 2497 3491 133748) 43.249.251.0/24 4777 2497 3491 133748 - Withdrawn - aggregated with 43.249.250.0/24 (4777 2497 3491 133748) 103.41.128.0/24 4777 2497 3491 133748 103.41.130.0/23 4777 2497 3491 133748 + Announce - aggregate of 103.41.130.0/24 (4777 2497 3491 133748) and 103.41.131.0/24 (4777 2497 3491 133748) 103.41.130.0/24 4777 2497 3491 133748 - Withdrawn - aggregated with 103.41.131.0/24 (4777 2497 3491 133748) 103.41.131.0/24 4777 2497 3491 133748 - Withdrawn - aggregated with 103.41.130.0/24 (4777 2497 3491 133748) 154.89.133.0/24 4608 24115 24482 133748 156.225.48.0/24 4777 2497 3491 133748 206.131.193.0/24 4608 24115 24482 133748 206.131.194.0/24 4777 2516 9299 138678 133748 206.131.195.0/24 4777 2516 3491 133748 206.131.196.0/24 4608 24115 9002 133748 206.131.197.0/24 4608 38082 21859 133748 206.131.198.0/24 4608 24115 9002 133748 206.131.199.0/24 4777 2497 3491 133748 206.131.202.0/24 4777 2516 3491 133748 206.131.203.0/24 4608 24115 9002 133748 206.131.204.0/24 4777 2497 3491 133748 133748 133748 133748 206.131.205.0/24 4777 2516 3491 133748 206.131.206.0/24 4777 2516 9299 138678 133748 206.131.207.0/24 4608 24115 24482 133748
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS133748 22 More Specifics 22 Total Advertisements CORETELNET-AS-AP CORETEL NETWORKS INTERNATIONAL PTE LTD, SG
43.249.248.0/24 43.249.248.0/22
43.249.249.0/24 43.249.248.0/22
43.249.250.0/24 43.249.248.0/22
43.249.251.0/24 43.249.248.0/22
103.41.128.0/24 103.41.128.0/22
103.41.130.0/24 103.41.128.0/22
103.41.131.0/24 103.41.128.0/22
154.89.133.0/24 154.80.0.0/12
156.225.48.0/24 156.224.0.0/11
206.131.193.0/24 206.131.192.0/20
206.131.194.0/24 206.131.192.0/20
206.131.195.0/24 206.131.192.0/20
206.131.196.0/24 206.131.192.0/20
206.131.197.0/24 206.131.192.0/20
206.131.198.0/24 206.131.192.0/20
206.131.199.0/24 206.131.192.0/20
206.131.202.0/24 206.131.192.0/20
206.131.203.0/24 206.131.192.0/20
206.131.204.0/24 206.131.192.0/20
206.131.205.0/24 206.131.192.0/20
206.131.206.0/24 206.131.192.0/20
206.131.207.0/24 206.131.192.0/20
154.81.143.0/24 154.80.0.0/12
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 154.81.143.0/24 Withdrawn
whois: 402332
IANA has recorded AS133748 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS133748\n % [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
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