137.132.21.0/24

AS7472 · NUS Information Technology

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Summary

Country	Singapore
Domain	nus.edu.sg
ASN	AS7472
Parent Range	137.132.0.0/16
Registry	APNIC
ID	NUSNET

WHOIS Details

inetnum:        137.132.0.0 - 137.132.255.255
netname:        NUSNET
descr:          imported inetnum object for NUS-1
country:        SG
org:            ORG-NUOS1-AP
admin-c:        CCNU1-AP
tech-c:         CCNU1-AP
abuse-c:        AN1032-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
remarks:        Fault, Abuse & Spam Reporting:
remarks:        Spam and Abuse: abuse@nus.edu.sg
remarks:        Network Issues: noc@nus.edu.sg
remarks:        NOC Telephone: +65-6516-1786
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
notify:         ccenet@nus.edu.sg
mnt-by:         APNIC-HM
mnt-lower:      MAINT-NUS-AP
mnt-routes:     MAINT-NUS-AP
mnt-irt:        IRT-NUS-SG
last-modified:  2020-10-20T01:04:56Z
source:         APNIC

irt:            IRT-NUS-SG
address:        NUS Information Technology
address:        2 Engineering Drive 4
address:        National University of Singapore
address:        Singapore 117584
e-mail:         abuse@nus.edu.sg
abuse-mailbox:  abuse@nus.edu.sg
admin-c:        CN89-AP
tech-c:         CN89-AP
auth:           # Filtered
remarks:        abuse@nus.edu.sg was validated on 2025-11-05
mnt-by:         MAINT-NUS-AP
last-modified:  2026-01-09T04:09:56Z
source:         APNIC

organisation:   ORG-NUOS1-AP
org-name:       National University of Singapore
org-type:       LIR
country:        SG
address:        2 Engineering Drive 4
phone:          +65-6516-7440
fax-no:         +65-6778-0198
e-mail:         infranoc@nus.edu.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:43Z
source:         APNIC

role:           ABUSE NUSSG
country:        ZZ
address:        NUS Information Technology
address:        2 Engineering Drive 4
address:        National University of Singapore
address:        Singapore 117584
phone:          +000000000
e-mail:         abuse@nus.edu.sg
admin-c:        CN89-AP
tech-c:         CN89-AP
nic-hdl:        AN1032-AP
remarks:        Generated from irt object IRT-NUS-SG
remarks:        abuse@nus.edu.sg was validated on 2025-11-05
abuse-mailbox:  abuse@nus.edu.sg
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-05T01:34:58Z
source:         APNIC

person:         Computer Centre National Universityof Singapore
address:        2 Engineering Drive 4, National University of Singapore117584
country:        SG
phone:          +65 8742484
e-mail:         ccenet@nus.edu.sg
nic-hdl:        CCNU1-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  DA18-ORG-ARIN
remarks:        is-role:     Y
remarks:        last-name:   Computer Centre, National Universityof Singapore
remarks:        street:      2 Engineering Drive 4, National University of Singapore117584
remarks:        country:     SG
remarks:        mailbox:     ccenet@nus.edu.sg
remarks:        bus-phone:   +65 8742484
remarks:        reg-date:    1999-03-09
remarks:        changed:     hostmaster@arin.poc 20020215
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         ccenet@nus.edu.sg
mnt-by:         MNT-NUS-SG
last-modified:  2008-09-04T07:29:35Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 137.132.21.0/24

Range	ASN	Company	Num of IPs
137.132.0.0/16	AS7472	imported inetnum object for NUS-1	65,536

Nearby Ranges

BGP prefixes that overlap with 137.132.0.0/16

Range	ASN	Company	Num of IPs
137.132.0.0/16	AS7472	imported inetnum object for NUS-1	65,536
137.132.48.0/24	AS8075	National University of Singapore	256
137.132.49.0/24	AS8075	National University of Singapore	256

Hosted domains

There are 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
137.132.21.13	joinnus.edu.sg	2
137.132.21.55	sox.net.sg	1

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

Read more

Pingable IPs

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

IP Address	ASN	Details
137.132.21.42	AS7472 NUS Information Technology	`1.29ms` 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
69.250.206.104	AS7922 Comcast Cable Communications, LLC	`6.64ms` from Ashburn, US
174.178.14.168	AS7922 Comcast Cable Communications, LLC	`18.47ms` from Flint, US
171.247.169.152	AS7552 Viettel Group	`1.05ms` from Ho Chi Minh City, VN
213.87.101.248	AS8359 MTS PJSC	`18.80ms` from Krasnoyarsk, RU
60.106.175.168	AS17676 SoftBank Corp.	`3.71ms` from Osaka, JP
113.155.4.232	AS18126 Chubu Telecommunications Company, Inc.	`4.29ms` from Osaka, JP
82.66.147.24	AS12322 Free SAS	`1.61ms` from Paris, FR
107.170.240.72	AS14061 DigitalOcean, LLC	`0.26ms` from Santa Clara, US
113.26.216.104	AS4134 CHINANET BACKBONE	`3.78ms` from Taiyuan, CN
39.97.24.184	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.22ms` from Beijing, CN
123.119.110.232	AS4808 China Unicom Beijing Province Network	`3.23ms` from Beijing, CN
24.62.32.136	AS7922 Comcast Cable Communications, LLC	`7.78ms` from Boston, US
73.241.132.8	AS7922 Comcast Cable Communications, LLC	`2.67ms` from Fremont, US
187.232.160.40	AS8151 UNINET	`11.41ms` from Guadalajara, MX
93.237.123.136	AS3320 Deutsche Telekom AG	`3.20ms` from Hamburg, DE
121.23.133.232	AS4837 CHINA UNICOM China169 Backbone	`11.63ms` from Hohhot, CN
180.244.19.216	AS7713 PT Telekomunikasi Indonesia	`1.67ms` from Jakarta, ID
94.7.30.8	AS5607 Sky UK Limited	`4.70ms` from London, GB
173.26.243.232	AS30036 Mediacom Communications Corp	`14.09ms` from Minneapolis, US
179.26.191.248	AS6057 Administracion Nacional de Telecomunicaciones	`3.54ms` from Montevideo, UY
76.124.77.152	AS7922 Comcast Cable Communications, LLC	`9.25ms` from New York City, US
34.34.82.184	AS396982 Google LLC	`0.14ms` from Oudeschip, NL
52.86.13.88	AS14618 Amazon.com, Inc.	`0.44ms` from Reston, US
200.110.205.104	AS270253 SICONECT TELECOMUNICACOES EIRELI	`13.82ms` from Rio de Janeiro, BR
5.8.17.24	AS8492 OBIT Ltd.	`0.76ms` from Saint Petersburg, RU

Traceroute

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

traceroute -a -n -q1 -f3 137.132.21.157

traceroute to 137.132.21.157 (137.132.21.157): 64 hops max, 52 byte packets

3 [AS7473] 203.208.190.121 0.611 ms

4 *

5 [AS7473] 203.208.177.214 0.643 ms

6 [AS3758] 165.21.138.86 0.696 ms

7 [AS3758] 165.21.138.150 0.826 ms

8 *

9 *

10 [AS7610] 202.51.241.14 1.626 ms

11 [AS7472] 137.132.21.157 1.042 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On April 13th 2026

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.

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