1. All IP Ranges
  2. 165.0.0.0/8
  3. 165.21.0.0/16
  4. AS3758  | 165.21.36.0/23

165.21.36.0/23

AS3758  ·  SingNet

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Summary

Country Singapore
Domain singnet.com.sg
ASN AS3758
Parent Range 165.21.0.0/16
Registry APNIC
ID SINGTEL-NETWORKS-165-21-36-0

WHOIS Details

inetnum:        165.21.36.0 - 165.21.36.255
netname:        SINGTEL-NETWORKS-165-21-36-0
descr:          SingNET PTE LTD
descr:          Singapore Telecommunications LTD
country:        SG
admin-c:        SH9-AP
tech-c:         SH9-AP
abuse-c:        AS2068-AP
status:         ALLOCATED NON-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:        --------------------------------------------------------
mnt-by:         MAINT-SG-SINGNET
mnt-lower:      MAINT-SG-SINGNET
mnt-routes:     MAINT-SG-SINGNET
mnt-irt:        IRT-SINGNET-SG
last-modified:  2026-01-29T09:47:52Z
source:         APNIC

irt:            IRT-SINGNET-SG
address:        SingNet Engineering & Operations
address:        10 EUNOS ROAD 8,
address:        # 07-31, SINGAPORE POST CENTRE
address:        Singapore 408600
e-mail:         hostmaster@singnet.com.sg
abuse-mailbox:  hostmaster@singnet.com.sg
admin-c:        SH9-AP
tech-c:         SH9-AP
auth:           # Filtered
remarks:        hostmaster@singnet.com.sg was validated on 2026-01-29
mnt-by:         MAINT-SG-SINGNET
last-modified:  2026-01-29T08:58:12Z
source:         APNIC

role:           ABUSE SINGNETSG
country:        ZZ
address:        SingNet Engineering & Operations
address:        10 EUNOS ROAD 8,
address:        # 07-31, SINGAPORE POST CENTRE
address:        Singapore 408600
phone:          +000000000
e-mail:         hostmaster@singnet.com.sg
admin-c:        SH9-AP
tech-c:         SH9-AP
nic-hdl:        AS2068-AP
remarks:        Generated from irt object IRT-SINGNET-SG
remarks:        hostmaster@singnet.com.sg was validated on 2026-01-29
abuse-mailbox:  hostmaster@singnet.com.sg
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-29T08:58:45Z
source:         APNIC

person:         SingNet Hostmaster
address:        SingNet Engineering & Operations
address:        10 EUNOS ROAD 8
address:        #07-31, SINGAPORE POST CENTRE
address:        SINGAPORE 408600
country:        SG
phone:          +65 7845922
fax-no:         +65 4753273
e-mail:         hostmaster@singnet.com.sg
nic-hdl:        SH9-AP
notify:         hostmaster@singnet.com.sg
mnt-by:         MAINT-SG-SINGNET
last-modified:  2026-01-29T09:43:29Z
source:         APNIC

route:          165.21.36.0/24
origin:         AS19905
descr:          SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, #05-04
mnt-by:         MAINT-SG-SINGNET
last-modified:  2024-08-23T01:50:14Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 165.21.36.0/23

Range ASN Company Num of IPs
165.21.0.0/16 AS3758 SingNet Pte Ltd 65,536
165.21.0.0/16 AS9506 SingNet Pte Ltd 65,536

Nearby Ranges

BGP prefixes that overlap with 165.21.0.0/16

Range ASN Company Num of IPs
165.21.0.0/16 AS9506 SingNet Pte Ltd 65,536
165.21.0.0/16 AS3758 SingNet Pte Ltd 65,536
165.21.50.0/24 AS3758 SingNET PTE LTD 256
165.21.70.0/24 AS3758 SingNET PTE LTD 256
165.21.71.0/24 AS3758 SingNET PTE LTD 256
165.21.72.0/24 AS3758 SingNET PTE LTD 256
165.21.88.0/24 AS3758 SingNET PTE LTD 256
165.21.93.0/24 AS3758 SingNET PTE LTD 256
165.21.94.0/24 AS3758 SingNET PTE LTD 256
165.21.154.0/24 AS9506 SingNET PTE LTD 256
165.21.155.0/24 AS9506 SingNET PTE LTD 256
165.21.31.0/24 AS9506 SingNET PTE LTD 256
165.21.75.0/24 AS9506 SingNET PTE LTD 256
165.21.31.0/24 AS3758 SingNET PTE LTD 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
Read more

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
43.130.141.71 AS132203 Tencent Building, Kejizhongyi Avenue 0.34ms from Ashburn, US
54.84.122.215 AS14618 Amazon.com, Inc. 0.50ms from Ashburn, US
78.21.222.199 AS6848 Telenet BV 7.65ms from Brussels, BE
18.160.236.71 AS16509 Amazon.com, Inc. 0.82ms from Chicago, US
38.145.192.55 AS18978 Enzu Inc 0.41ms from Chicago, US
193.228.122.7 AS34785 Stadtwerke Klagenfurt AG 0.30ms from Klagenfurt am Wörthersee, AT
209.171.161.119 AS852 TELUS Communications Inc. 5.58ms from Montreal, CA
122.228.131.39 AS4134 CHINANET-BACKBONE 9.33ms from Nanchang, CN
64.59.225.87 AS398977 Pacific University 1.08ms from Portland, US
61.219.131.39 AS3462 Data Communication Business Group 3.51ms from Taichung, TW
85.204.52.119 AS33977 Banat Telecom Satelit S.R.L. 6.17ms from Timisoara, RO
122.132.58.183 AS2518 BIGLOBE Inc. 10.87ms from Tokyo, JP
31.163.156.135 AS12389 PJSC Rostelecom 8.15ms from Yekaterinburg, RU
85.4.2.119 AS3303 Swisscom (Switzerland) Ltd 1.82ms from Zuerich, CH
4.156.170.135 AS8075 Microsoft Corporation 0.56ms from Ashburn, US
114.116.200.135 AS23724 IDC, China Telecommunications Corporation 4.07ms from Beijing, CN
111.197.213.39 AS4808 China Unicom Beijing Province Network 4.48ms from Beijing, CN
208.122.194.151 AS27589 MOJOHOST 0.26ms from Detroit, US
49.166.248.87 AS17858 LG POWERCOMM 1.81ms from Incheon, KR
86.152.133.39 AS2856 British Telecommunications PLC 3.83ms from London, GB
112.255.102.151 AS4837 CHINA UNICOM China169 Backbone 1.15ms from Qingdao, CN
176.230.11.23 AS12400 Partner Communications Ltd. 2.61ms from Rosh Ha‘Ayin, IL
109.108.201.247 AS49455 Telia Norge AS 9.39ms from Sandefjord, NO
179.187.192.87 AS18881 TELEFÔNICA BRASIL S.A 1.77ms from São Paulo, BR
50.46.158.231 AS20055 Wholesail networks LLC 1.40ms from Woodinville, US

Traceroute

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

$
traceroute -a -n -q1 -m6 165.21.37.185
traceroute to 165.21.37.185 (165.21.37.185): 6 hops max, 52 byte packets
1 [AS15169] 142.250.237.158 173.854 ms
2 *
3 [AS3758] 165.21.138.82 284.924 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Salt Lake City, US
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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