123.136.68.0/24

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:        123.136.68.0 - 123.136.68.255
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:  2022-05-12T01:55:18Z
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 2025-05-27
mnt-by:         MAINT-A-STAR-SG
last-modified:  2025-09-04T05:19:29Z
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 2025-05-27
abuse-mailbox:  ITSS_Network@hq.a-star.edu.sg
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-27T23:19:56Z
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

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.136.68.200	technoa.science	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.136.68.2	AS23767 A-STAR	`1.23ms` 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
2.51.4.104	AS5384 Emirates Internet	`3.57ms` from Al Fujairah City, AE
194.187.245.40	AS35673 JSC Kaspi Bank	`0.62ms` from Almaty, KZ
185.251.130.120	AS50926 AXARNET COMUNICACIONES, S.L.	`4.25ms` from Barcelona, ES
136.37.84.184	AS16591 Google Fiber Inc.	`0.85ms` from Kansas City, US
94.28.56.248	AS12772 Enforta Autonomous System	`10.18ms` from Khabarovsk, RU
37.229.168.152	AS15895 "Kyivstar" PJSC	`8.67ms` from Kyiv, UA
47.61.43.40	AS12430 VODAFONE ESPANA S.A.U.	`8.71ms` from Madrid, ES
23.117.211.200	AS7018 AT&T Enterprises, LLC	`6.54ms` from Miami, US
201.86.44.120	AS18881 TELEFÔNICA BRASIL S.A	`13.38ms` from Osasco, BR
201.27.148.120	AS27699 TELEFÔNICA BRASIL S.A	`1.81ms` from Sao Paulo, BR
60.39.74.88	AS4713 NTT Communications Corporation	`13.40ms` from Tokyo, JP
221.13.239.8	AS4837 CHINA UNICOM China169 Backbone	`7.33ms` from Zhengzhou, CN
50.82.168.136	AS30036 Mediacom Communications Corp	`13.42ms` from Chicago, US
34.253.124.200	AS16509 Amazon.com, Inc.	`0.14ms` from Dublin, IE
85.134.205.232	AS25441 Imagine Communications Group Limited	`15.26ms` from Dublin, IE
88.254.65.104	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.23ms` from Istanbul, TR
188.37.25.56	AS12353 Vodafone Portugal	`2.65ms` from Lisbon, PT
36.53.252.200	AS7522 STNet, Incorporated	`5.96ms` from Osaka, JP
122.196.87.216	AS9617 JCOM Co., Ltd.	`13.57ms` from Osaka, JP
94.30.248.24	AS20910 SIA "BITE Latvija"	`0.53ms` from Riga, LV
131.247.137.136	AS5661 UNIVERSITY OF SOUTH FLORIDA	`2.23ms` from Tampa, US
124.182.99.216	AS1221 Telstra Limited	`5.84ms` from Adelaide, AU
194.50.43.184	AS1241 Forthnet	`0.95ms` from Athens, GR
79.128.231.88	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.65ms` from Athens, GR
136.255.253.72	AS12302 Vodafone Romania S.A.	`0.51ms` from Bucharest, RO

Traceroute

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

traceroute -a -n -q1 123.136.68.21

traceroute to 123.136.68.21 (123.136.68.21): 64 hops max, 52 byte packets

1 [AS15169] 108.170.237.141 224.225 ms

2 [AS4637] 202.147.33.138 167.535 ms

3 [AS23855] 203.30.38.37 165.384 ms

4 [AS23767] 192.122.136.6 166.473 ms

5 *

6 *

7 *

8 *

9 [AS23767] 123.136.68.2 165.552 ms

10 *

11 [AS23767] 123.136.68.21 166.99 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On September 11th 2025

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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