Autonomous System details

AS151847

Fastmail Pty Ltd  ·  fastmail.com

Australia

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AS151847 – Fastmail Pty Ltd

Field Value
Country Australia
Website fastmail.com
Hosted domains 54,295
IPv4 addresses 512
IPv6 addresses 1,208,925,819,614,629,174,706,176
ASN type Hosting
Registry apnic
Allocated 2 years ago on Oct 06, 2023
Updated 3 months ago on Nov 05, 2025

IP Ranges

Netblock Company Num of IPs
103.168.172.0/24 Fastmail Pty Ltd t/a Fastmail 256
202.12.124.0/24 Fastmail Pty Ltd 256
Netblock Company
2001:df7:1680::/48 Fastmail Pty Ltd
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WHOIS Details

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                                                ASHandle:       AS151847
                                                OrgID:          AS151847
                                                ASName:         AS151847
                                                ASNumber:       AS151847
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 54,295 domain names hosted across 34 IP addresses on this ASN.

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IP Address Domain Domains on this IP
103.168.172.37 ██████████ 51,142
103.168.172.52 ██████████ 48,747
103.168.172.65 ██████████ 163
103.168.172.39 ██████████ 49
103.168.172.54 ███████ 46
103.168.172.29 ██████████ 13
103.168.172.45 ██████████ 12
103.168.172.60 ████████ 12
103.168.172.47 ██████████ 11
103.168.172.62 ██████████ 11

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Peers

There are 3 peers for this ASN.

Peers Name
AS13335 Cloudflare, Inc.
AS1828 Unitas Global
AS6939 Hurricane Electric LLC
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS13335 Cloudflare, Inc.
AS1828 Unitas Global
AS6939 Hurricane Electric LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
2001:df7:1680::1 AS151847 Fastmail Pty Ltd 3.13ms from Secaucus, US
103.168.172.254 AS151847 Fastmail Pty Ltd 0.38ms from Philadelphia, US
202.12.124.45 AS151847 Fastmail Pty Ltd 0.27ms from St. Louis, 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
23.118.127.119 AS7018 AT&T Enterprises, LLC 7.75ms from Atlanta, US
101.51.2.183 AS23974 Ministry of education 1.54ms from Bangkok, TH
41.164.70.167 AS36937 Liquid Telecommunications South Africa (Pty) Ltd 1.97ms from Cape Town, ZA
128.248.215.231 AS6200 University of Illinois Chicago 1.57ms from Chicago, US
62.158.77.55 AS3320 Deutsche Telekom AG 3.86ms from Frankfurt am Main, DE
65.65.167.215 AS7018 AT&T Enterprises, LLC 1.35ms from Houston, US
219.149.65.39 AS4134 CHINANET-BACKBONE 4.23ms from Liaoyang, CN
31.120.210.71 AS2856 British Telecommunications PLC 4.85ms from London, GB
121.161.68.7 AS4766 Korea Telecom 2.16ms from Seoul, KR
44.255.166.167 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
113.119.29.231 AS4134 CHINANET-BACKBONE 1.63ms from Guangzhou, CN
103.165.137.87 AS17995 PT iForte Global Internet 0.72ms from Jakarta, ID
162.204.130.231 AS7018 AT&T Enterprises, LLC 2.84ms from Los Angeles, US
108.254.220.55 AS7018 AT&T Enterprises, LLC 11.17ms from Miami, US
90.46.69.87 AS3215 Orange S.A. 3.36ms from Paris, FR
220.130.96.71 AS3462 Data Communication Business Group 4.31ms from Taichung, TW
213.144.147.23 AS13030 Init7 (Switzerland) Ltd. 1.56ms from Zuerich, CH
174.179.216.23 AS7922 Comcast Cable Communications, LLC 7.19ms from Ashburn, US
92.206.185.199 AS16202 Tele Columbus AG 9.07ms from Berlin, DE
3.29.193.247 AS16509 Amazon.com, Inc. 0.10ms from Dubai, AE
175.16.158.23 AS4837 CHINA UNICOM China169 Backbone 11.06ms from Harbin, CN
5.58.57.87 AS16223 MAXNET TELECOM, LTD 5.50ms from Kyiv, UA
69.203.0.135 AS12271 Charter Communications Inc 4.33ms from New York City, US
177.129.79.247 AS263630 Cooperativa Central de Credito de Santa Catarina 6.90ms from Novo Hamburgo, BR
206.12.152.7 AS271 BCNET 3.93ms from Seattle, US

Traceroute

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

$
traceroute -a -n -q1 -f5 202.12.124.145
traceroute to 202.12.124.145 (202.12.124.145): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in St. Louis, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS151847 at robtex.

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