123.136.64.0/24
AS23767 · A-STAR
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| 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
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 |
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 |
0.11ms from Columbus,
US
|
|
| 97.178.123.24 |
17.94ms from Dallas,
US
|
|
| 77.47.4.24 |
7.22ms from Frankfurt am Main,
DE
|
|
| 36.4.58.104 |
10.59ms from Huai'an,
CN
|
|
| 176.49.139.8 |
0.89ms from Krasnoyarsk,
RU
|
|
| 212.35.247.88 |
0.64ms from London,
GB
|
|
| 163.181.190.8 |
0.04ms from Manila,
PH
|
|
| 130.211.41.200 |
0.08ms from Melbourne,
AU
|
|
| 109.74.80.184 |
0.74ms from Paris,
FR
|
|
| 187.85.105.40 |
0.74ms from Porto Alegre,
BR
|
|
| 69.248.101.184 |
7.00ms from Secaucus,
US
|
|
| 118.91.6.72 |
0.80ms from Seoul,
KR
|
|
| 122.137.187.216 |
4.34ms from Changchun,
CN
|
|
| 67.242.92.136 |
11.67ms from New York City,
US
|
|
| 54.234.202.72 |
0.23ms from Reston,
US
|
|
| 187.34.231.120 |
4.69ms from Sao Paulo,
BR
|
|
| 36.134.137.200 |
0.30ms from Suzhou,
CN
|
|
| 106.105.237.24 |
3.58ms from Taipei,
TW
|
|
| 52.179.237.24 |
0.23ms from Boydton,
US
|
|
| 16.64.105.232 |
0.83ms from Columbus,
US
|
|
| 123.21.246.72 |
1.25ms from Ho Chi Minh City,
VN
|
|
| 47.243.204.248 |
0.74ms from Hong Kong,
HK
|
|
| 140.213.224.120 |
1.10ms from Jakarta,
ID
|
|
| 88.200.57.72 |
0.62ms from Ljubljana,
SI
|
|
| 90.222.111.24 |
3.71ms from London,
GB
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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