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 54,955
IPv4 addresses 512
IPv6 addresses 1,208,925,819,614,629,200,000,000
ASN type Hosting
Registry apnic
Allocated 3 years ago on Oct 06, 2023
Updated 6 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 54,955 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 ██████████ 48,351
103.168.172.52 ██████████ 47,294
103.168.172.65 ██████████ 155
103.168.172.54 ██████████ 49
103.168.172.39 ██████████ 40
103.168.172.60 ████████ 12
103.168.172.45 ████████ 12
103.168.172.62 ██████████ 11
103.168.172.47 ██████████ 11
103.168.172.208 ██████████ 4

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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
202.12.124.146 AS151847 Fastmail Pty Ltd 0.20ms from St. Louis, US
103.168.172.14 AS151847 Fastmail Pty Ltd 0.43ms from Philadelphia, US
2001:df7:1680::1 AS151847 Fastmail Pty Ltd 3.19ms from Secaucus, 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
75.195.199.183 AS6167 Verizon Business 13.35ms from Chicago, US
131.241.48.87 AS6181 Cincinnati Bell Telephone Company LLC 6.09ms from Columbus, US
62.121.17.247 AS8607 Digital Space Group Limited 3.99ms from London, GB
101.188.86.247 AS1221 Telstra Limited 1.28ms from Melbourne, AU
81.25.74.7 AS208496 Daily Telecom Mobile s.r.l. 1.02ms from Milan, IT
79.50.253.215 AS3269 Telecom Italia S.p.A. 7.54ms from Milan, IT
61.147.187.7 AS138950 Jiangsu Wuxi International IDC network 4.01ms from Nanjing, CN
153.203.54.167 AS4713 NTT DOCOMO BUSINESS,Inc. 7.49ms from Osaka, JP
124.103.26.199 AS4713 NTT DOCOMO BUSINESS,Inc. 6.60ms from Osaka, JP
199.242.63.23 AS22702 RingSquared 0.16ms from Seattle, US
175.229.5.23 AS4766 Korea Telecom 3.21ms from Seoul, KR
154.243.216.39 AS36947 Telecom Algeria 10.24ms from Algiers, DZ
77.164.227.199 AS1136 KPN B.V. 1.47ms from Amsterdam, NL
45.232.206.39 AS266760 TELENOVO SA 0.80ms from Buenos Aires, AR
27.74.184.247 AS7552 Viettel Group 3.94ms from Ho Chi Minh City, VN
82.16.45.39 AS5089 Virgin Media Limited 3.93ms from London, GB
172.90.9.151 AS20001 Charter Communications Inc 4.93ms from Los Angeles, US
13.234.244.151 AS16509 Amazon.com, Inc. 0.14ms from Mumbai, IN
141.0.134.87 AS206260 Svorka AS 8.20ms from Oslo, NO
191.184.175.167 AS28573 Claro NXT Telecomunicacoes Ltda 19.15ms from Porto Alegre, BR
112.167.74.199 AS4766 Korea Telecom 5.38ms from Seoul, KR
222.228.108.39 AS2519 ARTERIA Networks Corporation 1.97ms from Tokyo, JP
115.126.17.119 AS38186 Forewin Telecom Group Limited, ISP at HK 1.45ms from Hong Kong, HK
88.250.89.55 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.83ms from Istanbul, TR
167.142.2.151 AS5056 Aureon Network Services 4.57ms from Kansas City, 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 202.12.124.225
traceroute to 202.12.124.225 (202.12.124.225): 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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