203.31.36.0/22

AS23352 · DEFT.COM

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Summary

Country	United States
Domain	smtp2go.com
ASN	AS23352
Registry	APNIC
ID	SMTP2GO-NZ

WHOIS Details

inetnum:        203.31.36.0 - 203.31.39.255
netname:        SMTP2GO-NZ
descr:          Sand Dune Mail Ltd
country:        US
geoloc:         41.8758586 -87.631515
org:            ORG-SDML1-AP
admin-c:        SDML1-AP
tech-c:         SDML1-AP
status:         ASSIGNED PORTABLE
abuse-c:        AS2443-AP
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:         APNIC-HM
mnt-routes:     MAINT-SMTP2GO-NZ
mnt-irt:        IRT-SMTP2GO-NZ
last-modified:  2020-07-14T07:20:33Z
source:         APNIC

irt:            IRT-SMTP2GO-NZ
address:        PO Box 29272, Christchurch 8440
e-mail:         abuse-contact@smtp2go.com
abuse-mailbox:  abuse-contact@smtp2go.com
admin-c:        SDML1-AP
tech-c:         SDML1-AP
auth:           # Filtered
remarks:        abuse-contact@smtp2go.com was validated on 2025-08-08
mnt-by:         MAINT-SMTP2GO-NZ
last-modified:  2025-11-18T00:29:35Z
source:         APNIC

organisation:   ORG-SDML1-AP
org-name:       Sand Dune Mail Ltd
org-type:       LIR
country:        NZ
address:        EPIC Building
address:        76/106 Manchester Street
phone:          +64-22-6974345
e-mail:         charlie@smtp2go.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:31Z
source:         APNIC

role:           ABUSE SMTP2GONZ
country:        ZZ
address:        PO Box 29272, Christchurch 8440
phone:          +000000000
e-mail:         abuse-contact@smtp2go.com
admin-c:        SDML1-AP
tech-c:         SDML1-AP
nic-hdl:        AS2443-AP
remarks:        Generated from irt object IRT-SMTP2GO-NZ
remarks:        abuse-contact@smtp2go.com was validated on 2025-08-08
abuse-mailbox:  abuse-contact@smtp2go.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-08T08:34:58Z
source:         APNIC

role:           Sand Dune Mail Ltd administrator
address:        PO Box 29272, Christchurch  8440
country:        US
phone:          +64-22-6974345
fax-no:         +64-22-6974345
e-mail:         abuse-contact@smtp2go.com
admin-c:        SDML1-AP
tech-c:         SDML1-AP
nic-hdl:        SDML1-AP
mnt-by:         MAINT-SMTP2GO-NZ
last-modified:  2017-06-07T03:06:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.31.0.0/16

Range	ASN	Company	Num of IPs
203.31.8.0/23	AS10215	Microland Limited	512
203.31.202.0/23	AS18390	Spintel Pty Ltd	512
203.31.42.0/23	AS139049	GIGACOMM PTY LTD	512
203.31.164.0/23	AS38498	Bank Internasional Indonesia	512
203.31.34.0/23	AS38835	Buroserv Australia Pty Ltd	512
203.31.114.0/23	AS55707	Simtronic Technologies Pty Ltd	512
203.31.62.0/23	AS1221	Panasonic Australia Pty. Limited	512
203.31.93.0/24	AS141216	Asia Yadanar Golden Horse Company Limited	256
203.31.76.0/24	AS154292	Politeknik Kesehatan Palembang	256
203.31.48.0/24	AS18111	Bytecard PTY LTD	256
203.31.217.0/24	AS211619	MAXKO d.o.o.	256
203.31.75.0/24	AS23854	NINE ENTERTAINMENT CO. PTY LTD	256
203.31.183.0/24	AS23921	INGDIRECT Australia, Tuggerah	256
203.31.160.0/24	AS26431	Happy Telecomunications LLC	256
203.31.184.0/24	AS2764	Clear Technology Pty Limited	256
203.31.216.0/24	AS38220	Amaze Intelligence Pty Ltd	256
203.31.221.0/24	AS399735	LakeLand Internet LLC	256
203.31.241.0/24	AS4739	iiNet Limited	256
203.31.255.0/24	AS4739	I-Nex Corporation Pty Ltd	256
203.31.23.0/24	AS4764	Glenn Tesla Jayaputera	256
203.31.96.0/24	AS4764	Softway Pty Limited	256
203.31.64.0/24	AS4826	Silver Chain Nursing Association	256
203.31.40.0/24	AS50340	SEBEK sp. z o.o	256
203.31.70.0/24	AS55365	Campus Drive (Cnr Murdoch Drive)	256
203.31.44.0/24	AS7545	Compumedics Limited	256
203.31.58.0/24	AS7545	Sutherland Shire Council	256
203.31.81.0/24	AS7545	Performance Peripherals Australasia	256
203.31.84.0/24	AS7545	Hilliard Electronic Systems	256
203.31.41.0/24	AS7575	GENAZZANO F.C.J. COLLEGE LIMITED	256
203.31.56.0/24	AS7594	Ignatius Park College	256
203.31.0.0/24	AS7604	Zettagrid Pty Ltd	256
203.31.1.0/24	AS7703	Westway Nominees Pty Ltd t/a Bekkers	256
203.31.2.0/24	AS7703	Westway Nominees Pty Ltd t/a Bekkers	256
203.31.227.0/24	AS7703	Westway Nominees Pty Ltd t/a Bekkers	256
203.31.103.0/24	AS8368	Xaurum Belux at Upstream (LCL Brussels)	256
203.31.214.0/24	AS9266	Fiveways International Limited	256
203.31.101.0/24	AS9301	Cynergic National Network	256
203.31.57.0/24	AS9301	Cynergic National Network	256
203.31.252.0/24	AS10080	Interconnect Networks Pty Ltd	256
203.31.82.0/24	AS9723	Conetix Pty Ltd	256
203.31.65.0/24	AS133120	Hosted Network Pty. Ltd.	256
203.31.79.0/24	AS133175	Knowledge by Design Pty Ltd	256
203.31.210.0/24	AS133974	Pinnacle Tele Services Pvt. Ltd.	256
203.31.234.0/24	AS134078	5070 ANG MO KIO INDUSTRIAL PARK 2	256
203.31.169.0/24	AS134371	Rakib Enterprise	256
203.31.161.0/24	AS139906	InSPire Net Ltd	256
203.31.185.0/24	AS140639	Pymble Ladies College	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

1,000 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.31.39.37	AS23352 DEFT.COM	`0.22ms` from Chicago, US
203.31.36.213	AS23352 DEFT.COM	`0.20ms` from Chicago, US
203.31.38.117	AS23352 DEFT.COM	`0.19ms` from Chicago, US
203.31.37.164	AS23352 DEFT.COM	`0.22ms` from Chicago, US

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
36.135.72.134	AS134810 China Mobile Group JiLin communications corporation	`2.58ms` from Changchun, CN
118.254.148.182	AS4134 CHINANET-BACKBONE	`4.18ms` from Changsha, CN
104.194.122.22	AS29825 Illinois Institute of Technology	`1.74ms` from Chicago, US
14.185.119.54	AS45899 VNPT Corp	`4.88ms` from Da Nang, VN
51.112.147.22	AS16509 Amazon.com, Inc.	`0.12ms` from Dubai, AE
109.223.252.118	AS3215 Orange S.A.	`11.63ms` from Frankfurt am Main, DE
161.156.79.86	AS36351 IBM Cloud	`0.71ms` from Frankfurt am Main, DE
82.97.144.134	AS13101 TNG Stadtnetz GmbH	`2.17ms` from Hamburg, DE
27.68.17.70	AS7552 Viettel Group	`2.89ms` from Ho Chi Minh City, VN
136.46.37.198	AS16591 Google Fiber Inc.	`4.46ms` from Kansas City, US
90.221.245.86	AS5607 Sky UK Limited	`3.70ms` from London, GB
75.237.244.6	AS6167 Verizon Business	`9.95ms` from Los Angeles, US
97.106.191.38	AS33363 Charter Communications, Inc	`10.27ms` from Orlando, US
180.50.0.22	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.13ms` from Osaka, JP
213.155.41.118	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`7.99ms` from Prague, CZ
54.91.126.6	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
73.112.151.246	AS7922 Comcast Cable Communications, LLC	`9.21ms` from Secaucus, US
1.11.185.230	AS17839 LG HelloVision Corp.	`1.89ms` from Seoul, KR
118.39.227.198	AS4766 Korea Telecom	`8.07ms` from Seoul, KR
126.224.142.70	AS17676 SoftBank Corp.	`3.55ms` from Tokyo, JP
193.171.63.230	AS1853 ACONET	`0.47ms` from Vienna, AT
170.106.8.118	AS132203 Tencent Building, Kejizhongyi Avenue	`0.26ms` from Ashburn, US
182.54.169.182	AS45637 UniFone New Zealand Ltd	`19.56ms` from Auckland, NZ
194.65.101.102	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.84ms` from Braga, PT
197.79.26.150	AS37611 AFRIHOST SP (PTY) LTD	`15.68ms` from Cape Town, ZA

Traceroute

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

traceroute -a -n -q1 -f4 203.31.39.223

traceroute to 203.31.39.223 (203.31.39.223): 64 hops max, 52 byte packets

4 [AS23352] 204.93.251.173 17.724 ms

5 [AS23352] 203.31.39.223 0.245 ms

Measurement taken from

IPinfo ProbeNet in Chicago, US

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.

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