155.69.0.0/16

AS9419 · Nanyang Technological University

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Singapore
Domain	ntu.edu.sg
ASN	AS9419
Registry	APNIC
ID	NTUNET1

WHOIS Details

inetnum:        155.69.0.0 - 155.69.255.255
netname:        NTUNET1
descr:          imported inetnum object for NTU-3
country:        SG
org:            ORG-NTU2-AP
admin-c:        NNM2-AP
tech-c:         NNM2-AP
abuse-c:        AN1078-AP
status:         ALLOCATED PORTABLE
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        inetnum: 155.69.0.0 - 155.69.255.255
remarks:        netname: NTUNET1
remarks:        org-id: NTU-3
remarks:        status: assignment
remarks:        rev-srv: DNSTEX.NTU.EDU.SG NTUIX.NTU.EDU.SG
remarks:        tech-c: NN151-ARIN
remarks:        reg-date: 1991-10-30
remarks:        changed: hostmaster@arin.net 20020226
remarks:        source: ARIN
remarks:        
remarks:        ----------
notify:         networkadmin@ntu.edu.sg
mnt-by:         APNIC-HM
mnt-routes:     MNT-NTU-NON-SG
mnt-lower:      MNT-NTU-NON-SG
mnt-irt:        IRT-NTU-NON-SG
last-modified:  2025-08-08T01:30:42Z
source:         APNIC

irt:            IRT-NTU-NON-SG
address:        Nanyang Technological University, Centre for IT Services
address:        76 Nanyang Drive
address:        N2.1-B1
address:        Singapore 637331
e-mail:         networkteamb@ntu.edu.sg
abuse-mailbox:  networkteamb@ntu.edu.sg
admin-c:        NNM2-AP
tech-c:         NNM2-AP
auth:           # Filtered
remarks:        networkteamb@ntu.edu.sg was validated on 2025-09-23
mnt-by:         MNT-NTU-NON-SG
last-modified:  2025-11-18T00:29:07Z
source:         APNIC

organisation:   ORG-NTU2-AP
org-name:       Nanyang Technological University
org-type:       LIR
country:        SG
address:        Universitiy
address:        C/- Centre for IT Services
address:        50 Nanyang Avenue
phone:          +65 6790 5231
fax-no:         +65 6791 0688
e-mail:         networkadmin@ntu.edu.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:47Z
source:         APNIC

role:           ABUSE NTUNONSG
country:        ZZ
address:        Nanyang Technological University, Centre for IT Services
address:        76 Nanyang Drive
address:        N2.1-B1
address:        Singapore 637331
phone:          +000000000
e-mail:         networkteamb@ntu.edu.sg
admin-c:        NNM2-AP
tech-c:         NNM2-AP
nic-hdl:        AN1078-AP
remarks:        Generated from irt object IRT-NTU-NON-SG
remarks:        networkteamb@ntu.edu.sg was validated on 2025-09-23
abuse-mailbox:  networkteamb@ntu.edu.sg
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-23T13:08:23Z
source:         APNIC

person:         NTU Network Managers
address:        Nanyang Technological University, Centre for IT Services Nanyang Ave n/a, n/a 639798
country:        SG
phone:          +65 7905228
fax-no:         +65 7910688
e-mail:         networkadmin@ntu.edu.sg
nic-hdl:        NNM2-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  NN151-ARIN
remarks:        is-role:     N
remarks:        last-name:   Network Managers
remarks:        first-name:  NTU
remarks:        street:      Nanyang Technological University, Centre for IT Services Nanyang Ave n/a, n/a 639798
remarks:        country:     SG
remarks:        mailbox:     networkadmin@ntu.edu.sg
remarks:        fax-phone:   7910688
remarks:        bus-phone:   7905228
remarks:        reg-date:    2002-02-26
remarks:        changed:     hostmaster@arin.poc 20020226
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         networkadmin@ntu.edu.sg
mnt-by:         MNT-NTU-NON-SG
last-modified:  2008-09-04T07:29:34Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 155.69.0.0/16

Range	ASN	Company	Num of IPs
155.69.1.0/24	AS9419	Nanyang Technological University, Centre for IT Services Nanyang Ave	256

Nearby Ranges

BGP prefixes that overlap with 155.0.0.0/8

Range	ASN	Company	Num of IPs
155.229.0.0/16	AS3257	GTT Americas, LLC	65,536
155.7.0.0/16	AS27065	DoD Network Information Center	65,536
155.223.0.0/16	AS2592	Ege University (EGE)	65,536
155.7.0.0/16	AS27066	DoD Network Information Center	65,536
155.240.0.0/16	AS2018	Agricultural Research Council	65,536
155.163.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.130.0.0/16	AS22911	SWITCH, LTD	65,536
155.238.0.0/16	AS2018	Cape Technikon	65,536
155.178.0.0/16	AS22773	Federal Aviation Administration	65,536
155.7.0.0/16	AS27064	DoD Network Information Center	65,536
155.155.0.0/16	AS1585	Headquarters, USAISC	65,536
155.101.0.0/16	AS17055	University of Utah	65,536
155.98.0.0/16	AS17055	University of Utah	65,536
155.104.0.0/16	AS1906	Northrop Grumman Corp.	65,536
155.246.0.0/16	AS16889	Stevens Institute of Technology	65,536
155.136.0.0/16	AS21301	Royal Bank of Scotland	65,536
155.6.0.0/16	AS1637	Headquarters, USAISC	65,536
155.193.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.170.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.232.0.0/16	AS2018	TENET (The UNINET Project)	65,536
155.178.0.0/16	AS22773	Federal Aviation Administration	65,536
155.40.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.33.0.0/16	AS156	Northeastern University	65,536
155.24.0.0/16	AS1556	Headquarters, USAISC	65,536
155.100.0.0/16	AS17055	University of Utah	65,536
155.53.0.0/16	AS158	Ericsson Inc.	65,536
155.92.0.0/16	AS11500	Milwaukee School of Engineering	65,536
155.97.0.0/16	AS17055	University of Utah	65,536
155.99.0.0/16	AS17055	University of Utah	65,536
155.144.0.0/16	AS17756	Australian Postal Corporation	65,536
155.109.0.0/16	AS10273	Florida Power & Light Company	65,536
155.185.0.0/16	AS137	Universita' degli Studi di Modena e Reggio Emilia	65,536
155.5.0.0/16	AS1637	Headquarters, USAISC	65,536
155.253.0.0/16	AS137	Area della Ricerca di Milano	65,536
155.31.0.0/16	AS11809	Embry-Riddle Aeronautical University	65,536
155.187.0.0/16	AS140637	Department of Climate Change Energy the Environment and Water	65,536
155.134.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.48.0.0/16	AS16481	Babson College	65,536
155.230.0.0/16	AS10052	Kyungpook National University	65,536
155.197.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.151.0.0/16	AS1540	Headquarters, USAISC	65,536
155.166.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.250.0.0/16	AS13167	Merck KGaA	65,536
155.132.0.0/16	AS200656	Nokia EMEA	65,536
155.143.0.0/16	AS135887	Telstra Limited	65,536
155.38.0.0/16	AS16509	Amazon Technologies Inc.	65,536
155.60.0.0/16	AS10235	NATIONAL AUSTRALIA BANK LIMITED	65,536
155.155.0.0/16	AS1554	Headquarters, USAISC	65,536
155.155.0.0/16	AS1556	Headquarters, USAISC	65,536
155.65.0.0/16	AS36291	Sanofi	65,536

Hosted domains

There are 43 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
155.69.7.163	nu.edu.sg	27
155.69.7.158	wmi.hk	5
155.69.202.37	protist.guru	4
155.69.255.50	earthobservatory.sg	1
155.69.255.4	nanyangmba.com	1
155.69.15.137	tecnoxp.com	1
155.69.254.236	eucentre.sg	1
155.69.202.44	wovodat.org	1
155.69.202.60	rris.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

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

IP Address	ASN	Details
155.69.253.221	AS9419 Nanyang Technological University	`1.13ms` from Singapore, SG
155.69.232.254	AS9419 Nanyang Technological University	`1.46ms` from Singapore, SG
155.69.5.186	AS9419 Nanyang Technological University	`2.06ms` from Singapore, SG
155.69.66.1	AS9247 National Institute of Education	`2.58ms` 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
73.38.13.16	AS7922 Comcast Cable Communications, LLC	`6.82ms` from Boston, US
89.185.250.96	AS24971 MasterDC s.r.o.	`0.16ms` from Brno, CZ
69.32.216.128	AS27365 Cengage Learning, Inc.	`1.57ms` from Cincinnati, US
72.191.13.224	AS11427 Charter Communications Inc	`5.45ms` from Dallas, US
84.39.111.16	AS48200 Opteamax GmbH	`0.61ms` from Frankfurt am Main, DE
220.179.7.224	AS4134 CHINANET-BACKBONE	`7.02ms` from Huai'an, CN
211.46.129.224	AS4766 Korea Telecom	`0.75ms` from Incheon, KR
149.0.216.0	AS8386 Vodafone Net Iletisim Hizmetler AS	`5.57ms` from Istanbul, TR
36.71.68.240	AS7713 PT Telekomunikasi Indonesia	`1.92ms` from Jakarta, ID
94.10.26.160	AS5607 Sky UK Limited	`5.62ms` from London, GB
77.159.135.64	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`10.97ms` from Paris, FR
98.58.164.240	AS7922 Comcast Cable Communications, LLC	`10.03ms` from Pompano Beach, US
52.149.40.144	AS8075 Microsoft Corporation	`0.35ms` from Quincy, US
47.251.163.64	AS45102 Alibaba (US) Technology Co., Ltd.	`0.45ms` from Santa Clara, US
1.161.46.192	AS3462 Data Communication Business Group	`1.30ms` from Taipei, TW
123.204.53.0	AS4780 Digital United Inc.	`3.02ms` from Taipei, TW
221.170.18.16	AS2518 BIGLOBE Inc.	`5.18ms` from Tokyo, JP
5.240.178.192	AS1257 Tele2 Sverige AB	`14.83ms` from Vilnius, LT
188.18.133.176	AS12389 PJSC Rostelecom	`0.88ms` from Yekaterinburg, RU
114.252.10.224	AS4808 China Unicom Beijing Province Network	`3.35ms` from Beijing, CN
2.206.217.80	AS3209 Vodafone GmbH	`4.41ms` from Hamburg, DE
1.226.86.112	AS9318 SK Broadband Co Ltd	`1.82ms` from Incheon, KR
5.80.45.0	AS2856 British Telecommunications PLC	`2.68ms` from London, GB
91.125.124.80	AS6871 Plusnet	`4.16ms` from London, GB
5.145.240.240	AS44265 OOO Smoltelecom	`6.76ms` from Moscow, RU

Traceroute

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

traceroute -a -n -q1 -f2 -m10 155.69.39.147

traceroute to 155.69.39.147 (155.69.39.147): 10 hops max, 52 byte packets

2 [AS43289] 178.17.160.162 8.865 ms

3 *

4 *

5 *

6 *

7 [] 103.16.102.104 179.056 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Chisinau, MD

On January 18th 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.

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

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales