123.136.70.0/24

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:        123.136.70.0 - 123.136.70.255
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:  2022-05-12T01:55:19Z
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
123.136.71.0/24 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
123.136.64.0/24 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

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
4.210.66.88 AS8075 Microsoft Corporation 0.18ms from Dublin, IE
104.51.217.56 AS7018 AT&T Enterprises, LLC 2.32ms from Houston, US
114.104.156.104 AS4134 CHINANET-BACKBONE 7.97ms from Huai'an, CN
85.0.97.216 AS3303 Swisscom (Switzerland) Ltd 0.66ms from Lausanne, CH
109.164.249.216 AS3303 Swisscom (Switzerland) Ltd 0.99ms from Lausanne, CH
87.115.93.168 AS6871 Plusnet 8.20ms from London, GB
36.34.79.184 AS4837 CHINA UNICOM China169 Backbone 7.87ms from Nanjing, CN
27.121.131.184 AS2519 ARTERIA Networks Corporation 3.47ms from Osaka, JP
41.62.75.120 AS37705 TOPNET 2.01ms from Tunis, TN
102.191.19.136 AS24835 Vodafone Data 6.11ms from Cairo, EG
47.108.161.152 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.10ms from Chengdu, CN
65.70.124.104 AS7018 AT&T Enterprises, LLC 6.61ms from Dallas, US
90.247.162.104 AS5378 Vodafone Limited 4.22ms from Edinburgh, GB
87.159.235.232 AS3320 Deutsche Telekom AG 6.29ms from Frankfurt am Main, DE
185.39.185.184 AS62357 2M-IT Oy 4.97ms from Helsinki, FI
108.146.3.56 AS20057 AT&T Enterprises, LLC 19.87ms from Houston, US
36.50.46.56 AS138077 PT Abhinawa Sumberdaya Asia 0.54ms from Jakarta, ID
81.154.83.120 AS2856 British Telecommunications PLC 6.62ms from London, GB
13.202.141.232 AS16509 Amazon.com, Inc. 0.16ms from Mumbai, IN
90.29.32.232 AS3215 Orange S.A. 7.58ms from Paris, FR
3.208.254.248 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
52.54.211.216 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
118.43.229.248 AS4766 Korea Telecom 10.31ms from Seoul, KR
77.233.11.72 AS42478 "Yug-Link" Ltd. 16.89ms from Tbilisi, GE
221.44.234.184 AS17676 SoftBank Corp. 3.71ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f4 -m12 123.136.70.130
traceroute to 123.136.70.130 (123.136.70.130): 12 hops max, 52 byte packets
4 [] 103.16.102.242 117.679 ms
5 [AS134148] 103.5.242.7 69.158 ms
6 *
7 [AS23767] 192.122.136.4 53.453 ms
8 *
9 [AS23767] 192.122.136.4 51.581 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Yangon, MM
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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