123.136.71.0/24

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:        123.136.71.0 - 123.136.71.255
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:  2022-05-12T01:55:20Z
source:         APNIC

irt:            IRT-A-STAR-SG
address:        Agency for Science, Technology and Research
address:        
address:        
address:        
e-mail:         ITSS_Network@hq.a-star.edu.sg
abuse-mailbox:  ITSS_Network@hq.a-star.edu.sg
admin-c:        SM2111-AP
tech-c:         SM2111-AP
auth:           # Filtered
remarks:        itss_network@hq.a-star.edu.sg 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:         ITSS_Network@hq.a-star.edu.sg
admin-c:        SM2111-AP
tech-c:         SM2111-AP
nic-hdl:        AA1894-AP
remarks:        Generated from irt object IRT-A-STAR-SG
remarks:        itss_network@hq.a-star.edu.sg was validated on 2025-12-03
abuse-mailbox:  ITSS_Network@hq.a-star.edu.sg
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:         ITSS_Network@hq.a-star.edu.sg
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
123.136.96.0/19 AS38466 U Mobile Sdn Bhd 8,192
123.136.32.0/19 AS7600 EscapeNet 8,192
123.136.24.0/21 AS38493 Royal Green Communication Limited 2,048
123.136.28.0/24 AS149765 Royal Green Limited 256
123.136.64.0/24 AS23767 Agency for Science, Technology and Research 256
123.136.65.0/24 AS23767 Agency for Science, Technology and Research 256
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
123.136.28.0/24 AS138640 Royal Green Limited 256
123.136.100.0/24 AS38466 123.136.100.0/24 256
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
123.136.28.0/24 AS138640 Royal Green Limited 256
123.136.28.0/24 AS149765 Royal Green Limited 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
107.194.166.72 AS7018 AT&T Enterprises, LLC 12.34ms from Atlanta, US
3.125.19.152 AS16509 Amazon.com, Inc. 0.45ms from Frankfurt am Main, DE
88.65.171.40 AS3209 Vodafone GmbH 8.39ms from Frankfurt am Main, DE
122.33.100.24 AS17858 LG POWERCOMM 1.84ms from Incheon, KR
95.242.52.120 AS3269 Telecom Italia S.p.A. 15.95ms from Milan, IT
60.135.188.216 AS17676 SoftBank Corp. 3.98ms from Osaka, JP
49.22.169.24 AS4766 Korea Telecom 9.59ms from Seoul, KR
222.117.35.40 AS4766 Korea Telecom 1.30ms from Seoul, KR
89.190.252.88 AS12389 PJSC Rostelecom 9.47ms from Stockholm, SE
138.88.61.72 AS701 Verizon Business 2.49ms from Ashburn, US
181.177.49.152 AS264642 TELESISTEMA S.R.L. 18.71ms from Asuncion, PY
73.253.161.72 AS7922 Comcast Cable Communications, LLC 10.67ms from Boston, US
170.79.252.88 AS263834 VILLA GESELL TELEVISIÒN COMUNITARIA S.A. 6.38ms from Buenos Aires, AR
177.50.213.104 AS26615 TIM S/A 12.70ms from Fortaleza, BR
161.73.245.40 AS786 Jisc Services Limited 3.37ms from London, GB
92.132.172.8 AS3215 Orange S.A. 6.96ms from Lyon, FR
93.99.232.120 AS16019 Vodafone Czech Republic a.s. 5.50ms from Prague, CZ
45.133.225.56 AS49505 JSC Selectel 1.03ms from Saint Petersburg, RU
52.9.92.56 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
58.178.57.136 AS9443 Vocus Retail 2.35ms from Sydney, AU
126.7.80.216 AS17676 SoftBank Corp. 3.19ms from Tokyo, JP
172.190.61.56 AS8075 Microsoft Corporation 0.62ms from Ashburn, US
62.38.159.200 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 0.97ms from Athens, GR
80.133.98.8 AS3320 Deutsche Telekom AG 3.38ms from Duesseldorf, DE
180.219.224.56 AS17924 SmarTone Mobile Communications Ltd 19.34ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -f3 -m14 123.136.71.199
traceroute to 123.136.71.199 (123.136.71.199): 14 hops max, 52 byte packets
3 [AS3356] 4.69.206.178 325.21 ms
4 [AS3549] 113.29.74.18 321.261 ms
5 *
6 [AS23856] 61.16.76.57 322.52 ms
7 [AS23856] 61.16.76.58 323.007 ms
8 *
9 [AS23767] 192.122.136.4 321.872 ms
10 *
11 [AS23767] 192.122.136.4 321.971 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Buenos Aires, AR
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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