123.136.64.0/24

AS23767  ·  A-STAR

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Summary

Country Singapore
Domain a-star.edu.sg
ASN AS23767
Registry APNIC
ID A-STAR-SG

WHOIS Details

inetnum:        123.136.64.0 - 123.136.64.255
netname:        A-STAR-SG
descr:          Agency for Science, Technology and Research
country:        SG
admin-c:        IN139-AP
tech-c:         IN139-AP
abuse-c:        AA1894-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-A-STAR-SG
mnt-irt:        IRT-A-STAR-SG
last-modified:  2022-05-12T01:55:16Z
source:         APNIC

irt:            IRT-A-STAR-SG
address:        Agency for Science, Technology and Research
address:        
address:        
address:        
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        SM2111-AP
tech-c:         SM2111-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-12-03
mnt-by:         MAINT-A-STAR-SG
last-modified:  2025-12-03T01:42:50Z
source:         APNIC

role:           ABUSE ASTARSG
country:        ZZ
address:        Agency for Science, Technology and Research
address:        
address:        
address:        
phone:          +000000000
e-mail:         [email protected]
admin-c:        SM2111-AP
tech-c:         SM2111-AP
nic-hdl:        AA1894-AP
remarks:        Generated from irt object IRT-A-STAR-SG
remarks:        [email protected] was validated on 2025-12-03
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-03T01:43:10Z
source:         APNIC

person:         ITSS Network
address:        30 Biopolis Street
country:        SG
phone:          +65-64074300
e-mail:         [email protected]
nic-hdl:        IN139-AP
mnt-by:         MAINT-A-STAR-SG
last-modified:  2022-05-12T01:54:16Z
source:         APNIC

route:          123.136.64.0/21
origin:         AS23767
descr:          A*STAR Agency For Science, Technology And Research 1 Fusionopolis Way,
mnt-by:         MAINT-A-STAR-SG
last-modified:  2019-02-14T01:10:43Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.136.0.0/16

Range ASN Company Num of IPs
123.136.32.0/19 AS7600 EscapeNet 8,192
123.136.96.0/19 AS38466 U Mobile Sdn Bhd 8,192
123.136.24.0/21 AS38493 Royal Green Communication Limited 2,048
123.136.66.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.67.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.68.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.69.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.70.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.71.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.100.0/24 AS38466 123.136.100.0/24 256
123.136.28.0/24 AS149765 Royal Green Limited 256
123.136.24.0/24 AS38493 Royal Green Limited 256
123.136.25.0/24 AS38493 Royal Green Limited 256
123.136.26.0/24 AS38493 Royal Green Limited 256
123.136.27.0/24 AS38493 Royal Green Limited 256
123.136.29.0/24 AS38493 Royal Green Limited 256
123.136.30.0/24 AS38493 Royal Green Limited 256
123.136.31.0/24 AS38493 Royal Green Limited 256
123.136.65.0/24 AS23767 Agency for Science, Technology and Research 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
123.136.64.7 AS23767 A-STAR 0.67ms from Singapore, SG

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
3.134.208.152 AS16509 Amazon.com, Inc. 0.11ms from Columbus, US
97.178.123.24 AS6167 Verizon Business 17.94ms from Dallas, US
77.47.4.24 AS35244 Tele Columbus AG 7.22ms from Frankfurt am Main, DE
36.4.58.104 AS4134 CHINANET-BACKBONE 10.59ms from Huai'an, CN
176.49.139.8 AS12389 PJSC Rostelecom 0.89ms from Krasnoyarsk, RU
212.35.247.88 AS5413 Wavenet Limited 0.64ms from London, GB
163.181.190.8 AS24429 Zhejiang Taobao Network Co.,Ltd 0.04ms from Manila, PH
130.211.41.200 AS396982 Google LLC 0.08ms from Melbourne, AU
109.74.80.184 AS31167 AXIONE S.A.S. 0.74ms from Paris, FR
187.85.105.40 AS28343 UNIFIQUE TELECOMUNICACOES S/A 0.74ms from Porto Alegre, BR
69.248.101.184 AS7922 Comcast Cable Communications, LLC 7.00ms from Secaucus, US
118.91.6.72 AS7562 HCN Dongjak 0.80ms from Seoul, KR
122.137.187.216 AS4837 CHINA UNICOM China169 Backbone 4.34ms from Changchun, CN
67.242.92.136 AS11351 Charter Communications Inc 11.67ms from New York City, US
54.234.202.72 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
187.34.231.120 AS27699 TELEFÔNICA BRASIL S.A 4.69ms from Sao Paulo, BR
36.134.137.200 AS9808 China Mobile Communications Group Co., Ltd. 0.30ms from Suzhou, CN
106.105.237.24 AS18049 Taiwan Infrastructure Network Technologie 3.58ms from Taipei, TW
52.179.237.24 AS8075 Microsoft Corporation 0.23ms from Boydton, US
16.64.105.232 AS8987 Amazon Data Services Ireland Ltd 0.83ms from Columbus, US
123.21.246.72 AS45899 VNPT Corp 1.25ms from Ho Chi Minh City, VN
47.243.204.248 AS45102 Alibaba (US) Technology Co., Ltd. 0.74ms from Hong Kong, HK
140.213.224.120 AS24203 PT XL Axiata 1.10ms from Jakarta, ID
88.200.57.72 AS2107 ARNES 0.62ms from Ljubljana, SI
90.222.111.24 AS5607 Sky UK Limited 3.71ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f2 123.136.64.7
traceroute to 123.136.64.7 (123.136.64.7): 64 hops max, 52 byte packets
2 [] 103.16.102.242 1.204 ms
4 [AS23767] 123.136.64.7 0.749 ms
Measurement taken from IPinfo ProbeNet in Singapore, SG
On

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