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 5 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
2001:df7:1680::1 AS151847 Fastmail Pty Ltd 3.63ms from New York City, US
202.12.124.195 AS151847 Fastmail Pty Ltd 0.20ms from St. Louis, US
103.168.172.217 AS151847 Fastmail Pty Ltd 2.80ms from Philadelphia, 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
132.164.83.183 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
132.193.120.167 AS668 United States Department of Defense (DoD) 0.65ms from Atlanta, US
120.53.205.39 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.05ms from Beijing, CN
76.94.168.39 AS20001 Charter Communications Inc 6.16ms from Los Angeles, US
73.48.231.215 AS7922 Comcast Cable Communications, LLC 10.11ms from Los Angeles, US
60.39.246.7 AS4713 NTT DOCOMO BUSINESS,Inc. 2.66ms from Osaka, JP
88.88.37.199 AS2119 Telenor Norge AS 8.28ms from Oslo, NO
81.218.80.23 AS8551 Bezeq International Ltd. 0.30ms from Petaẖ Tiqva, IL
34.194.9.215 AS14618 Amazon.com, Inc. 0.24ms from Reston, US
106.37.203.151 AS4847 China Networks Inter-Exchange 2.77ms from Tianjin, CN
102.38.60.87 AS5713 Telkom SA Ltd. 3.00ms from Cape Town, ZA
67.192.138.135 AS33070 Rackspace Hosting 1.12ms from Dallas, US
183.58.0.231 AS4134 CHINANET-BACKBONE 3.89ms from Guangzhou, CN
72.132.6.7 AS20001 Charter Communications Inc 8.86ms from Los Angeles, US
13.205.12.87 AS16509 Amazon.com, Inc. 0.11ms from Mumbai, IN
122.145.190.135 AS10013 FreeBit Co.,Ltd. 10.93ms from Tokyo, JP
81.240.190.71 AS5432 Proximus NV 3.16ms from Brussels, BE
160.176.11.135 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 2.26ms from Casablanca, MA
60.191.201.55 AS4134 CHINANET-BACKBONE 7.63ms from Hangzhou, CN
124.54.227.7 AS17858 LG POWERCOMM 1.41ms from Incheon, KR
89.153.10.55 AS2860 NOS COMUNICACOES, S.A. 3.42ms from Lisbon, PT
75.236.94.87 AS6167 Verizon Business 17.36ms from Los Angeles, US
78.129.253.87 AS20860 IOMART CLOUD SERVICES LIMITED 0.26ms from Maidenhead, GB
3.99.8.87 AS16509 Amazon.com, Inc. 0.15ms from Montreal, CA
143.48.172.199 AS13748 Cold Spring Harbor Laboratory 1.47ms from New York 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 202.12.124.4
traceroute to 202.12.124.4 (202.12.124.4): 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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